Rhizosphaera Needle Cast

Rhizosphaera needle cast is a type of fungus that primarily affects spruce trees. The term Rhizosphaera refers to the species of invading fungus, while the term needle cast refers to how the disease progresses as the spruce “casts off” infected needles.

Not all spruce varietals are susceptible to Rhizosphaera needle cast disease, which can aid in landscaping decisions. Colorado blue spruce, Oriental spruce and white spruce are known to be susceptible to this fungal infection, while Norway and red spruce are more resistant.

If you are caring for spruce trees at your home or workplace, it is important to learn the signs of needle cast infestation. The earlier you catch a fungus like Rhizosphaera, the more successful treatment is likely to be.

In this post, learn what Rhizosphaera needle cast is, what it looks like, where it comes from, treatment options and prevention tips.

What Is Rhizosphaera?

The term Rhizosphaera actually represents more than one fungal species, although the species R. kalkhoffii is most frequently implicated in spruce infestations.

This type of fungal infestation is actually rather common in spruce trees, especially among those that are planted in areas where they are not a native species. Wet, cool conditions can speed up and worsen an infestation.

What Does Needle Cast Disease Look Like?

Needle cast disease can take some time to become evident. The amount of stress the tree is under can shorten the time period to less than one season. Evergreen trees like the spruce won’t replace shed needles, so over time as the disease progresses, the symptoms will become more evident as the tree grows increasingly bare.

In general, it takes 12 to 15 months before symptoms become easy to detect. The main symptoms include the following:

– While new needles grow in green, older needles become discolored, often turning brown or yellow.
– When observed closely, needles can be seen to have tiny black dots along their length that are fungal spores (black dots are diseased; white dots are normal).
– Needles that have grown discolored will be shed in the fall and will not regrow.
– As the infestation progresses, the tree will look increasingly bare or even “see through.”
– The most typical damage pattern begins with infestation on the lower limbs that consistently moves upward until only the topmost crown of needles remains.
– After a majority of needles have become infected, this can then cause the branch to die off.

What Causes an Infestation?

Unfortunately, the Rhizosphaera spores are quite difficult to kill even through the harsh winter season, where they overwinter on living or dead needles. When spring arrives and the snow melts, splashing water can infest nearby trees.

The overall health of the tree can make it less or more susceptible to an infestation. Trees that are already stressed out from lack of water or nutrients, a difficult winter, poor husbandry or other health issues may be more apt to become infected.

While the fungus prefers young needles, it will also infect older needles if the need arises.

What Treatment Options Exist?

For severely infected trees, especially if they are smaller spruce that hold little value to your property, the best option is often a simple tree removal.

Several fungicides have proven to be effective to save spruce infected with Rhizosphaera. Fungicide chemicals that contain chlorothalonil or copper as an active ingredient are typically the most effective.

It is important to understand that there is no “cure” for Rhizosphaera and re-infection can occur at any time. The goal of fungicide treatment is not to cure the tree, but to prevent further infection or spread of Rhizosphaera.

The optimal time for treatment is in the spring during new needle growth. It is recommended to space fungicide treatments three to four weeks apart, continuing throughout the spring growing period or the wet season as applicable.

Fungicide should be sprayed over the entire tree. It is very important to ensure all needles receive the fungicide treatment, which can become more challenging with very large spruce.

Is There Any Way to Prevent It?

The hands-down best way to prevent a Rhizosphaera infestation is to plant a resistant varietal of spruce such as Norway or red spruce. However, be aware that even these spruce varietals can become infected under the right conditions.

Always take care to only plant non-infected spruce and to avoid planting any new trees near already infected trees. When infected branches or needles fall, take care to dispose of them by burning (if allowed in your area) hot composting or burying.

Colorado blue spruce is the most vulnerable. But any spruce varietal that is planted in sub-optimal conditions or has ongoing health issues is a potential candidate for Rhizosphaera infestation.

One key to preventing a Rhizosphaera infestation is to practice proper husbandry. These tips can help to prevent fungal invasion:

– Be sure your trees are pruned properly to facilitate maximum air circulation – air is not a friend to Rhizosphaera, which thrives in damp, cool, close conditions.
– Keep proper distance between trees when planted to avoid overlap as they grow.
– Keep your tree base properly weeded and mulch only up to four inches depth and up to two inches away from the trunk itself to permit proper airflow.
– Do not use sprinklers that spray near spruce (soaker hoses are a much safer option).
– Avoid pruning during the wet season to prevent fungal spread.
– Have a preventative fungicide treatment done annually to protect new needle growth (this can be helpful even on previously infected trees).

What to Do If You Suspect Rhizosphaera

The first step is to have your trees evaluated by a tree care professional. We will come to your site to evaluate your spruce and make recommendations for removal and/or treatment.

We will then provide you with a free, no-obligation quote for tree removal or the treatment option of your choice.

Emerald Ash Borer Damage

An invasive species to North America, the emerald ash borer is a green jewel beetle that feeds on species of ash trees. Adults are generally a third of an inch long, .063 inches wide, and a bright metallic green in color. The wing covers tend to be a darker green but can have copper hues. This beetle can be identified from below when it is flying by the upper abdomen, which is bright red.

The exotic beetle was discovered in the summer of 2002 in Michigan, near Detroit. They probably came into the United States in cargo ships or airplanes from their native Asia on packing material of solid wood. As of late 2018, the beetle was found not only in 35 states but 5 provinces of Canada as well. Since its discovery, the borer has killed ash trees in the hundreds of millions in North America, caused quarantines to be placed on logs, trees, and hardened firewood in areas of its occurrence, and cost property owners, municipalities, forest products industries, and nursery operators money in the hundreds of millions.

Emerald ash borer damage appears on largely in green, white, and black ashes. Of the North American species of ash, the blue appears to be the species that is most resistant. The beetle, whose name is often abbreviated to EAB, can also be found feeding on white fringetree. Tree symptoms are typically noticed initially in the top canopy. In fact, by the time a homeowner notices a D-shaped exit hole at ground level from an emerging adult EAB beetle, that tree will probably have been infested by generations of the beetles. Damage is typically quite evident by this point and is visible by watching the upper tree canopy first dying back, followed within the next couple of years by the lower canopy.

Females of the emerald ash borer lay eggs in crevices in the bark of ash trees. Larvae then feed beneath the bark of the ash trees to emerge in one or two years as adults. They exit through D-shaped holes. Adult beetles nibble on the foliage of ash trees but do little damage. The immature stage, or the larvae, feeding on the inner bark causes the true damage. This disrupts the tree’s ability to manage the transport of nutrients and water.

Tree symptoms show as canopy dieback and thinning upon first notice, epicormic suckering and sprouting as the tree is girdled by insect damage, bark cracks and splits, and a high profusion of woodpecker damage as the birds feast on the insect larva. When trees experience stress, they sometimes attempt to grow new leaves and branches where they still can. This is suckering.

Infected trees display top-down dieback with one-third to one-half of branches dying upon first notice; the remaining canopy dies within the two years that follow. This tends to be followed by a great many shoots arising beneath the dead sections of large branches and the trunk. Trees may exhibit two- to four-inch vertical splits within the bark as a response to larval feeding.

Woodpecker predation of EAB larva is another sign of potential emerald ash borer damage in a tree. The splinters of wood from woodpecker feeding tend to be a different color when there is recent damage: a light orange-yellow. The damage will be first noticed in upper branches that have a diameter of three to four inches, but it can be discovered throughout the tree when the infestations are in the advanced stages. Winter is when the damage is particularly visible from the ground level when woodpecker activity is more prevalent. Splinters of wood become more weathered in appearance through late spring and following into the summer months. Extensive damage from woodpeckers is sometimes known as bronzing or flecking.

The issue is further complicated by the fact that these symptoms are not unique to the EAB beetle. Native insects, diseases, and environmental factors may be responsible for symptoms that look identical to those of the EAB. Often common diseases like fungal cankers and verticillium wilt are mistaken for symptoms of emerald ash borer damage.

Specific signs of EAB include D-shaped exit holes that appear in June and July where the adults emerge from the ash trees. The holes are about one-eighth inch wide and may be oriented in all directions. These differ from exit holes of native borers, which will be oval or round and can vary size-wise. Another sign is a series of distinct S-shaped, serpentine tunnels or galleries beneath the bark. The tunnels are about an eighth inch wide and packed with frass, which is a mixture of insect excrement and sawdust. As the larvae feed, trees try to create callus tissue around the galleries. This sometimes causes the bark to split vertically, revealing the galleries and larvae. The final sign of the emerald ash borer infestation is the actual sight of the adults, larvae, or pupae.

Emerald Ash Borer Treatment

A Guide to Emerald Ash Borer Treatment

The emerald ash borer is one of the most destructive species of insect to owners of ash trees. The small, green beetle wreaks havoc on these beautiful trees and it is important to apply comprehensive and effective treatments to properly eradicate them. Since infestation can be systemic causing the species to multiply rapidly, it is important to regularly inspect your ash trees and no what the signs are. If you are able to salvage your ash trees from the destruction, there are thankfully a number of treatment options available.

What Do These Insects Do?

The EAB is an invasive species of insect that primarily lives inside of ash trees, which is the insect’s food source. Discovered in 2002, this species originated in Asia and found their way to the United States where they have decimated all varieties of ash trees and have caused much stress for landscapers and homeowners. The mechanism of infestation begins when females lay their eggs underneath the bark of the trees and the hatched larvae feast upon the trees interior bark, causing the tree to rot from the inside out.

The insect has destroyed millions of ash trees in the United States and Canada alone. The repercussions have been devastating to local home and garden retail stores throughout North America due to wary consumers not wishing to deal with the severity of a possible infestation. Once an infestation spreads throughout the tree, it becomes difficult to salvage due to the destruction of its interior due to the insects feeding.

Treatment Methods: Insecticides

Insecticides are the most popular forms of treatment against invasive insects, however, it can be confusing trying to find the best product. If you have ever experienced the nightmare of cockroach, termite, or bed bug infestation, then you are no doubt aware that insecticides must evolve to keep up with the defense mechanisms of insects. Emerald ash borer treatment is a continuously evolving process and insecticides are at the forefront of that approach.

Treating ash trees with insecticide requires precision since the larvae of the insect maintain a pattern of eating underneath the tree bark. Insecticide treatment should be a two-pronged process where treatment of the adult beetles and the larvae are handled separately. Systemic insecticides are water-soluble insecticides whose mechanism of application involves injecting the soil around a tree or directly injecting the chemical into the tree trunk. Some of these insecticides can be used by homeowners while other types require professionals to administer.

Imidacloprid and dinotefuran are insecticides that can be applied to the soil surrounding the ash tree. These chemicals are absorbed by the tree and work by poisoning the beetles during feeding. Landscaping professionals can administer these chemicals with both accuracy and safety. These chemicals can be administered by spray or injection and offer a comprehensive line of defense against the insects.

Insecticides that are administered through soil or trunk injections are incredibly effective as this allows for the chemical to reach the insects much faster. This process can only be administered by a pest control professional, which is worth the cost if trees are visibly dying. To prepare for this service, it is a good idea to irrigate the ground surrounding the tree as dry soil can drastically limit the effectiveness of the product.

An insecticide spray is a good idea to apply to ash tree foliage to kill adult insects on contact and maintain the killing process through a residual coating. This is the quickest and easiest way to treat ash trees–however, it is perhaps not the most effective. The spray will coat the exterior of the tree and foliage but will take a long time to kill all of the insects, especially the larvae underneath the bark.

Treatment: Tree Removal

The results of insecticides in the treatment of ash trees against these insects have produced mostly positive results. The efficiency of emerald ash borer treatment is dependent upon how bad the infestation is upon discovery and how efficient the homeowner is in providing the most effective course of treatment. The larvae can also feed upon the interior of the tree making patterns where insecticide cannot reach them. Sometimes, alternative methods need to be considered.

Due to the genetic makeup of insects, it is only a matter of time before they develop resistance to popular pesticides. In most cases, if emerald ash borer infestation is caught early, pesticides will adequately save the tree. If the damage has been done, it may be cost-efficient to have the tree removed and start again. Always consult with a landscaping professional to decide the best course of action–since treatment may be a possibility. If needed, they can also remove the infected trees with ease and discuss new options.

If you choose to cut your losses with tree removal and want to start over with new ash trees, start preventative treatment early. Regular inspections of ash trees will alert you to any signs of infestation and will ensure that early detection will help to save your tree. Regular chemical injections by a landscaping professional, either by soil or trunk once per year will keep your tree insect free. Regular inspections by your landscaping company can add to your inspections by also providing preventive and active treatment against any insects found.

In Summary

The ash tree is a beautiful tree that brings joy to homeowners all over North America and even though they are susceptible to these voracious insects, their beauty should be protected. Professional landscaping services offer protection for your trees and can ensure they remain protected with regular maintenance and inspections. Through a selection of chemicals that maintain safety for trees and provide toxicity to the insects, landscaping professionals can combine their experience with the most effective treatment options that will get rid of insects and keep them away. This beetle is moving to more and more states in the country,

Treatment Options for an Emerald Ash Borer Infestation

There are two primary options when it comes to dealing with an Emerald Ash Borer infestation. The most drastic choice is removing the tree altogether. This is usually only recommended if the tree is so irreparably damaged that it is dying and becoming an eyesore or is a threat to other trees, nearby power lines or structures.

Often, the most affordable Emerald Ash Borer treatment is chemical insecticides. If keeping the tree in place is important to you, this is the best option. These treatments should be done between March and mid-June to properly kill the Emerald Ash Bore larvae. Depending on your situation and personal preference, you can choose between insecticides that are injected into the tree trunk, soaked into the ground around the trunk, or applied with a sprayer on the entire tree. These treatments need to be repeated to be as effective as possible, so you will need to remember to apply the treatment every year or two to keep the Ash Borers from coming back.

EAB Insecticides used:

#1. Mauget System for smaller trees: Inject and using Capsules filled with Imicide insecticide

#2 TREEage Arborjet System for larger trees: Injection using IV pressurized system with Emamectin Benzoate insecticide

#3 Emamectin Benzoate is a new product which claims to provide up to 3-year protection against the EAB. While still relatively new to our area, this new insecticide has shown good results in eastern US states.

At Liberty Lawn & Landscape, we pride ourselves on using the best and most updated products on the market but at the same time we are very leery about using our customers as “Guinea Pigs” for new products. We will use the Mauget Injection System again in 2019 and if test results for Emamectin Benzoate come back positive in eastern Nebraska in 2020 we will be switching treatment programs accordingly. I am told the costs per application may be slightly higher using this new system, but the overall cost will be much less.

If you think you might have an EAB infestation, here’s what you do:

Have your tree(s) evaluated for their current health.  It is important to have an expert evaluate the condition of your trees and determine the source of your concern.  The experts at Liberty Lawn and Landscape will do the evaluation free of charge.

Assess the importance of the tree (or trees) to your overall landscape design.  If it’s determined that the tree (or trees) in question don’t add value to your outdoor space, it might make more sense to opt for removal. It makes no sense to treat a tree that has no relative value to the property.  Again, the certified professionals at Liberty Lawn and Landscape have years of experience and will help you evaluate your project and make recommendations as to the best course of action.

The USDA makes the following recommendations on their website:

  • Don’t move firewood. EAB larvae can survive hidden in the bark of firewood. Remember: buy local, burn local.
  • Inspect your trees. If you see any sign or symptom of an EAB infestation, contact your State agriculture agency.
  • Talk to friends, neighbors and co-workers about EAB and what they should be aware of on their trees.
  • Ask questions. If you receive ash nursery stock or firewood, know its point of origin and your supplier, as larvae could be hiding under the bark.
  • Know State and Federal regulations. Make sure you understand regulations that govern your state and those you may visit.
  • Know the quarantines in your area and learn to leave hungry pests behind

Liberty Lawn & Landscape Inc will:

#1 Evaluate the health and viability of the Ash Tree(s)

#2 Measure the circumference of the ash tree and produce treatment estimate

#3 upon approval of estimate, treat the ash tree(s)

If you have ash trees in Lincoln, Nebraska, early detection and prompt treatment can save your trees before they die. At Liberty Lawn and Landscape, we have professional licensed state of Nebraska Arborists who can evaluate your trees and let you know more about treatment options for your unique situation. Contact our team of professionals today to schedule a free evaluation of your property.

Emerald Ash Bore – Treatment vs. Removal

Ash Trees and the Emerald Ash Borer

Ash trees are one of the most popular trees in the United States. They cover millions of acres, but ever since 2002, they’ve been vulnerable to an insect that was accidentally imported from overseas.

If you have ash trees on your property, you’re probably aware of the metallic-looking green beetle known as the emerald ash borer. Emerald ash borers disrupt the tree’s ability to feed itself water and nutrients. These beetles can kill their tree hosts within one to four years, depending on the size of the tree. However, if the infestation is detected early enough, a mature tree (with a circumference of 14 inches or more) stands a good chance of surviving and thriving after being treated.

Signs of an emerald ash bore infestation may include the following, according to the Arbor Day Foundation’s “Tree Health Guide:”

  • Exit holes shaped like a “D”
  • Increased woodpecker activity
  • Leaves at the crown of the tree are thinning/dying
  • Splitting bark
  • The tree is sprouting suckers (young sprouts or new leaves) near its base
  • Tunnels appearing under the bark – these look like wavy lines on the bark of the tree

Your ash tree could fall prey to this insect pest even if you don’t know you have the beetle on your property. Call Liberty Lawn & Landscape to have your tree evaluated for its current health. Liberty Lawn & Landscape will evaluate your tree free of charge.

If you do have the emerald ash bore, you may be wondering: What will happen to my trees? Will they need to be removed? Can they be treated?

Treatment vs. Removal

Once you’ve had Liberty Lawn & Landscape Inc. evaluate the health of your tree, next determine the importance of your ash tree to your landscape. There’s no point in treating a tree that has little or no value to you in the overall landscaping of your property. If the tree is of relatively little value to your property, you’ll probably decide to have it removed rather than treated.

Another considering when you’re thinking about treatment vs. removal is the circumference of the ash tree. You should consider removal if your ash tree is less than 14″ (inches) around. This isn’t an absolute rule, but the recommendation from the U.S. Department of Agriculture (USDA) is that ash trees with a circumference of less than 14″ be removed rather than treated when infected with the emerald ash borer.

Emerald Ash Borer Treatment with Liberty Lawn & Landscape

Liberty Lawn & Lawnscape Inc. can deal with known or suspected emerald ash borer activity in your ash tree in three stages:

  1.  We come out to your property to evaluate the health and viability of your ash tree or trees.
  2. We measure the circumference of your ash tree(s). Remember, the circumference of the ash tree factors into the decision on whether to treat or remove the tree.
  3. Once you approve our estimate, we treat your ash tree with an insecticide that kills the emerald ash borers.

In the case of the emerald ash borer, the soon the tree is treated, the better its chances of surviving.

Insecticides Used For Emerald Ash Borer Cases

Depending upon the size of the ash tree, Liberty Lawn & Lawnscape Inc. uses one of two insecticides:

#1. Mauget System: This method of targeting the beetles is injected into the tree. It uses capsules filled with Imicide insecticide. This emerald ash bore treatment is most effective when used on smaller trees.

This method is environmentally friendly. In its more than 50 years in business, the J.J. Mauget Company has always been a leader in environmentally-friendly ways of treating trees.

#2 TREEage Arborjet System: This method of targeting the beetle infestation uses an injection using IV pressurized system with Emamectin Benzoate insecticide. It’s most effective when used with larger trees.

Like a hospital IV system used on the human body, the TREEage Arborjet system introduces the insecticide into the tree’s vascular system, which is the tree equivalent of veins and arteries. Rather than using spray insecticides that affect the surrounding plants and soil, this efficient delivery system targets the emerald ash borer pests directly. It kills the beetle’s larvae as well as adult beetles that have already emerged.

If your property has one or more ash trees with signs of emerald ash borer infestation, get in touch with Liberty Lawn & Landscape Inc. You’ll want your tree evaluated for health as soon as possible, and the evaluation is free of charge. If you do have emerald ash borers living in your ash tree, Liberty Lawn & Landscape will provide you with a timely, reasonable estimate for emerald ash bore treatment that will minimize the damage so you can get back to enjoying the view from your property instead of worrying about invasive insects.

What is the Emerald Ash Borer

What is the Emerald Ash Borer

The emerald ash borer, Agrilus planipennis Fairmaire in Latin, is an exotic beetle that originated on the Asia continent. Also referred to as EBA, the beetle was first discovered in United States in the southeastern region of Michigan, in the Detroit area, during the Summer of 2002.

It is speculated that the emerald ash borer found its way into North America on wood packing material, made of ash, carried on airplanes and cargo ships that originated from the beetle’s native Asia.

The adult beetles eat the foliage of ash trees, hence its name, but cause little actual damage to the tree. However, during the beetle’s immature stage, the larvae feed aggressively on the tree’s inner bark and interrupt the ability of the tree to transport water and nutrients. This often results in bark splitting and the tree dying.

Adult beetles typically come from the previous year’s infestations, sometime in May, but can appear earlier if the weather is unseasonably warm. Females will lay their eggs shortly after emergence. Once hatched, larvae will bore into the tree, leaving visible tracks underneath the bark while feeding. Smaller trees may die off within two years of infestation with larger trees dying off within four years.

Since its discovery in Michigan, the emerald ash borer has killed millions of ash trees across North America. As of October 2018, the emerald ash borer has been found in 35 states as well as six Canadian provinces. The has resulted in municipalities, property owners, nurseries and forest industries suffering hundreds of millions of dollars in damages.

The EBA infestation has caused U.S. and Canadian regulatory agencies to mandate quarantines and impose fines to prevent potentially infested ash trees, logs and firewood from being transferred from locations where the beetle is found.

Description
With adult EBA typically being only 1/2-inch long, the emerald ash borer is shorter than the width of a dime. However, on mass the larvae of the bright metallic-green beetle is capable of taking down trees thousands of times its size. The EBA’s eggs are approximately 1/25-inch long and are reddish-brown in color. The immature beetles are white with flat heads and distinct segmented bodies.

The Threat
Ash trees are one of the most abundant and valuable tree species in North America, with the total number of ash trees in the U.S. alone estimated at approximately seven to nine billion.

Source of the Threat
• Infested ash trees.
• Firewood.
• Ash wood products and packing material.
• Ash wood debris, including trimmings and chips.

All of these materials can spread EBA infestation even if the beetles are not visible.

Where the EBA is Found
The emerald ash borer is currently found primarily in the Eastern and Midwestern U.S. and parts of Canada, but is spreading rapidly. The beetle has killed or damaged over 40 million trees in the U.S. States of Alabama, Arkansas, Colorado, Connecticut, Delaware, Georgia, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maryland, Massachusetts, Michigan, Minnesota, Missouri, Nebraska, New Hampshire, New Jersey, New York, North Carolina, Ohio, Oklahoma, Pennsylvania, Tennessee, Texas, Virginia, West Virginia and Wisconsin as well as New Brunswick, Nova Scotia, Manitoba, Ontario and Quebec, Canada.

Nebraska
The EAB has destroyed thousands of ash trees causing millions of dollars in damage in Nebraska alone and tens of millions of dollars in damage across the rest of North America. On June 6, 2016 Nebraska joined its neighboring states of Colorado, Iowa, Kansas and Missouri to find and infestation of the emerald ash borer. This made Nebraska the 27th U.S. State to confirm the presence of the beetle when the Nebraska Department of Agriculture found the EBA during an inspection of Omaha’s Pulaski Park. The agency also found the emerald ash borer in Lincoln and Ashland, Nebraska in August of 2018.

The Nebraska Department of Agriculture has issued a quarantine of the effective areas that prohibits hardwood firewood, ash timber products, mulch, green waste material and ash nursery stock from leaving the quarantine area. If you find the emerald ash borer in Lincoln, or elsewhere in Nebraska, contact the Nebraska Department of Agriculture.

Signs of Infestation
• Thinning or wilted ash-tree crowns, possibly with yellow foliage.
• Increased woodpecker activity.
• D-shaped holes in ash trees.
• Splitting bark.
• Shoots, called “suckers,” originating from the tree’s trunk or roots that will often have above-average sized leaves.
• Tunneling tracks, in the wood, under the bark.

Treatment Options
While there is a chemical emeril ash bore treatment that serves as a control measure, there is no sure-fire cure for the spreading EBA infestation. Due to varying pesticide regulations of each state, landowners should consult their local extension office or state department of agriculture for directions.

It is not recommended that infected ash trees be chemically treated as a preventative measure, unless the trees are located over 15 miles from a confirmed infestation. As trees may only be treated with chemicals a limited number of times, waiting until you are in the quarantine area will maximize the number of times trees can be treated.

Treatment of ash trees to prevent EBA damage is done between March and mid-June. This allows the chemical treatment to be dispersed throughout the tree to most effectively kill the beetle larvae. In addition to chemical treatments, since 2007 three wasp species have been used as a biological control in several states.

Other Things You Can Do
The United States Department of Agriculture offers the following guidelines for managing EBA infestations:

• Inspect your trees and contact your state agricultural agency if you see any signs of ash borer infestation.
• Call the Ash Borer Hotline at 1-866-322-4512 or your local USDA APHIS office if you find an EAB infestation. You can find the contact information for your local offices on the USDA’s website.
• Take pictures of the insects, tree damage and make note of the area where you found the beetles.
• Don’t transport firewood from your property or move it across state lines.
• Buy and burn firewood locally.
• Buy kiln-dried firewood, if possible.
• Avoid ash firewood.
• The best preventative emeril ash bore treatment is to burn any remaining ash firewood supply before the weather warms to eliminate the spreading of EBA to live trees.
• Inform others by talking to neighbors, friends and co-workers about the emerald ash borer and what they should look for.
• Learn the point of origin and the supplier when receiving ash firewood or ash stock from a nursery.
• Learn the local and federal regulations that govern the states you may visit.
• Heed the local quarantine restrictions to avoid transporting infected ash wood or live trees.

What You Need to Know About Emerald Ash Borer Infestations in Nebraska

What You Need to Know About Emerald Ash Borer Infestations in Nebraska

If you have any ash trees on your property, there is a growing threat you need to be aware of. Nebraska is currently in the middle of an infestation that has the potential to destroy millions of trees. Being educated about emerald ash borers can help you take steps to prevent this dangerous invasive species from wreaking havoc on your property.

Emerald Ash Borers: An Overview

Emerald ash borers are an insect native to Asia that first started infesting Michigan back in 2002. These bugs are a type of small insect that is just around 13 millimeters long and only lives about a year in full, but they have caused a lot of damage.

You can identify emerald ash borers because they have a long, narrow body with two bronze-green wings and large black eyes along the head. The adults lay eggs in ash trees that hatch into milky white larvae made up of short, triangular segments. As the larvae grow, they eat the wood of the ash tree and then bore a hole out of the tree to escape once they mature.

Nebraska Confirms Emerald Ash Borer Infestation

When the presence of emerald ash borers was first discovered in the United States back in the early 2000s, the government quickly made moves to quarantine the insects. Sadly, these invasive little pests are hard to spot, and they can be transported around the states through infected ash tree products.

In 2016, emerald ash borers were spotted in Omaha, Nebraska. Since then, they have continued to spread throughout the state. With over 44 million ash trees, Nebraska is particularly vulnerable to emerald ash borers infestations. To try to prevent the spread, the Nebraska Department of Agriculture has quarantined the movement of wood from Douglas, Sarpy, Cass, Washington, and Dodge Counties.

According to the Nebraska Tree Service, anyone within 15 miles of an emerald ash borer infestation needs to exercise caution. This means that everyone in the Lincoln area may need to be worried for the health of their trees. Treating a tree is usually cheaper than cutting it down, but tree owners need to act fast if they want to have time to treat the tree before the infestation worsens. On average, 70 percent of unprotected ash trees are dead within four years of an infestation starting.

How to Tell If You Have Emerald Ash Borers

The best time to treat emerald ash borers is in the early Spring and Summer, so it is important to figure out whether not you have an infestation. Here are a few tips to make things easier.

Identifying Ash Trees

Of course before you can start looking for emerald ash borers, it is helpful to see whether or not you have an ash tree in your yard. Ash trees are a family of medium large trees that sprout whitish flowers in the Spring. They have distinctive smooth or diamond patterned bark in a grey shade and a wide, branching structure. If you have an ash tree, you may notice that the tree branches and leaves grow directly opposite each other instead of alternating along the main branch. Keep in mind that emerald ash borers can threaten any type of ash, including both the deciduous and evergreen versions.

Signs of Emerald Ash Borers

Here are a few signs that one of your ash trees might be infected with borers:

  • Thinning canopies and reduced leaf growth.
  • New growth of branches along the base of the trees.
  • Damaged bark due to woodpeckers trying to eat emerald ash borer larvae.
  • D shaped exit holes in the bark that are usually around ⅛ inches in width.
  • Bark that splits vertically.
  • S-shaped tunnels beneath the bark that are packed with a fine dust.
  • White larvae or green adults on the trees.

Not all ash trees will show signs of an infestation, so even if you do not see any of these symptoms, it is important to get them inspected by a professional arborist if you live in an area with emerald ash borers.

Treatment Options for an Emerald Ash Borer Infestation

When it comes to dealing with emerald ash borers, there are a few different options. The most drastic choice in emeril ash bore treatment is removing the tree altogether. This is usually only recommended if the tree is so irreparably damaged that it is dying and becoming a threat to nearby power lines, homes, or other trees.

A more affordable emeril ash bore treatment that lets you save the trees is chemical insecticides. These treatments should be done between March and mid-June to properly kill the emerald ash bore larvae. Depending on your situation and personal preference, you can pick between insecticides injected into the tree trunk, soaked into the ground around the trunk, or sprayed on the entire tree. These treatments need to be repeated to be as effective as possible, so you will need to remember to apply the treatment every year or two to keep the ash borers from coming back.

If you have ash trees in Lincoln, Nebraska, prompt treatment can save your trees before they die. At Liberty Lawn and Landscape, we have professional licensed state of Nebraska arborists who can evaluate your trees and let you know more about treatment options for your unique situation. Contact us today to schedule your free evaluation.

Emerald Ash Borer


Contact Us for a Free Assessment!

Invasive Species Warning!

Emerald Ash Borer

The symptoms an ash tree shows when it is infested with emerald ash borer are similar to symptoms caused by other ash pests or diseases. For example, crown dieback can occur due to EAB damage, but can also be the result of drought stress, soil compaction or verticillium wilt, just to name a few. This insect is killing our ash trees.

We offer free estimates for tree care and all other services. Click here to request your free estimate today!

Liberty Irrigation

News Release – December 2015

Thank you for your lawn and landscape maintenance service business over the last many years. We appreciate our loyal customers and are always looking for better and the best ways to service your needs!

Over the past 5 years, we have increasingly heard from you, our customers, of your desire for a more accessible and reliable lawn sprinkler service company. I must admit that I have found it challenging to get our customers’ sprinkler system needs handled in a prompt, reasonable, and professional manner. This has been very frustrating for all of us. We were forced to do some sprinkler work for our customers even though we never truly focused on that particular service.

I do not ask much from the vendors I refer to our customers, i.e. irrigation companies, other than to do what they say they are going to do. Over the past 5+ year, I have heard every excuse from my frustrated customers regarding irrigation companies such as not getting returned phone calls, emails, texts, missed appointments, invoicing delays, etc. For those reasons and the fact that I already have Don Holmes, an experienced lawn sprinkler technician, on staff has lead me to make the customer service prompted decision to expand our service division. I am excited to introduce to you:

Liberty Irrigation, Inc. 
111 N 56th Street – Suite #301
Lincoln NE 68504
(office) 402-466-0160
(cellular, Don Holmes) 402-440-7805

This new service we are offering is going to be singularly focused on servicing our customers’ sprinkler system maintenance needs. We will not be doing sprinkler installations, so you will never hear the excuse from us that you will have to wait for service until we are done with a “big project”. I have heard that comment as an excuse way too many times recently, and I’m sure you have as well. Our customers are Liberty Irrigation’s “big project”.

Our sprinkler technician, Don Holmes, has been servicing lawn irrigation systems for over 25 years and is very well known throughout our community and industry as reliable, knowledgeable, prompt and courteous lawn care professional. He is very excited about the opportunity to assist our lawn care customers with your sprinkler system maintenance needs full time.

I will be sending you more information outlining our new service soon.

Thank you again for your business and Merry Christmas!

Healthy Lawns

A lawn’s surface appearance is only as good and healthy as its root system.

Newer lawns need concentrated root management to create a healthy sustainable turf. Treat the soils with root enhancing nutrients such as potassium and phosphorous to promote root growth in early spring and fall. It does not matter how green the grass blades are if the root system is dying.

GRASS

A well-developed root system will lead to a thicker, fuller lawn, so root fertilizers can be very important for grass. The root systems of turf grasses generally grow more vigorously during cooler weather in spring and fall, so Lawn Professionals should apply granulated root growth fertilizers in these months. Lawn care experts recommend fertilizing in April with a solid root growth fertilizer that also contains a weed control product to prepare lawns for summer, then fertilize again in late October with a 13-25-12 fertilizer, which is high in phosphorus, to encourage root growth over the winter. Do not use a product with high nitrogen content fertilizer in the fall. This would only promote diseases such as snow mold and would not promote quality root growth.

POTASSIUM FOR LAWN USE

Of the compounds you can use on your lawn, conventional bagged fertilizers are labeled with numbers, such as 10-10-10 or 5-20-10, indicating the ratio of the three macronutrients, N-P-K, in the mix. You might want one with the last number, which refers to potassium, larger than the others. Potassium helps lawns build the plant proteins that affect the macronutrient content of the plants in the lawn. Ideal amounts of potassium prompt grass to grow and mature faster, help them resist pest infestation and help them grow stronger. Potassium regulates plant growth, increases the sturdiness of deep roots. You can tell if your lawn is deficient in potassium by discovering grass blades, particularly older ones, with brown spots, yellow edges around them and brown or yellow veins.

THE ROLE OF IRON

Lawn grasses most heavily use the macronutrients nitrogen, phosphorus and potassium in normal growth and metabolic processes. Of these three primary nutrients, nitrogen is most important to keep a lawn growing fast and thick with an evenly green color. Several micronutrients are also needed in small amounts to maintain good plant growth. The iron molecule is the central atom in all green chlorophyll pigments in plants. Lack of nitrogen can cause new growth to look yellow or white, but a lack of iron prevents plants from even creating new chlorophyll and the lawn becomes pale green or yellow-green. Iron is an important nutrient for chlorophyll production, but iron amendments to soils should only be applied to turf that has a vigorous root system and thick blading.

IRON VS. NITOGEN

While both nitrogen and iron nutrients create green turf, you cannot substitute or eliminate one nutrient and expect the lawn to remain forever green. Iron treatments can mask an unhealthy lawn and be a procurer to lawn diseases. When growing, lawn grasses utilize large amounts of nitrogen to elongate their leaf blades, resulting in an increased need for mowing. If iron is deficient, the lawn can still look pale green or yellowish. Eliminating all nitrogen from lawn soil slows or stops growth, but iron molecules keeps extant grass blades green.

Read more: www.ehow.com/info_8561984_ironite-do-lawns.html