Insect Infestations & Disease Control Update

Blog Category: Tree Care
May 11, 2016 by John Griffiths, Master Arborist

With the Iowa spring underway, our team of ISA Certified Arborists has been hard at work treating trees for various insect and disease concerns. Here are top tips and reminders for the 2016 season:

Emerald Ash Borer (EAB)

What Is It?

The Emerald Ash Borer, commonly known as EAB, is an exotic green beetle that wreaks havoc on ash trees. While the adult beetle causes little harm, only nibbling on foliage, the larvae cause considerable damage because they feed on the inner bark. Though the process can take several years, EAB has killed millions of ash trees across the country by disrupting their ability to carry water and essential nutrients.


Homeowners can have Wright Outdoor Solution remove their ash trees or inject a chemical treatment that may prevent the trees from an EAB infestation. If you have not started a program for your ash tree(s) yet, do not wait much longer – the fight against this invasive beetle is posing to be a real threat. It is imperative to hire an International Society of Arboriculture (ISA) Certified Arborist for such evaluation and treatment. Our arborists are not only trained in proper treatment of ash trees, but can also spot structural problems and make recommendations to reduce the likelihood of breakage.

We’ve mentioned before that we’ve heard some scary stories related to EAB. We’ve had a couple clients tell us that a company recommended treating their tree for EAB but the tree wasn’t even an ash tree. This concerns us as much as it concerns you. We urge you to ask questions and be cautious when hiring anyone to care for your trees. If you are wondering the types of questions you should ask when hiring a tree care company, click here.

And to learn even more about EAB, click here.

Japanese Beetles

What Is It?

Japanese beetles have been known to eat the foliage, fruits and flowers off more than 300 plants and trees. While they won’t kill your trees, it will defoliate them, making them appear dead. Japanese beetles also pose a risk to your lawn, as their larvae (white grubs) feed on and destroy the roots of plants, especially turf grass.


We anticipate a bad year for Japanese beetles because of the mild winter we experienced. Expect to see the beetle emerge mid-June. If you choose to go the do-it-yourself route, it is important to know the target and surrounding plants, as well as understand that all insecticides can kill bees if used at the wrong time. Our staff is trained in proper treatment and can perform soil injections to stop these insects before they destroy your lawn, plants and trees.

Bur Oak Blight

What Is It

Bur oak blight attacks only bur oaks, and although not fatal in the short term, left untreated, it can eventually kill your tree. Symptoms include browning leaves in July and August. Leaves will often stay attached to the branches throughout the fall and winter months, infecting the new leaf crop in the spring.


To protect your bur oak(s), our ISA Certified Arborists can apply treatment in late May through early June to protect your bur oaks.


If you are interested in treatment against any of the items noted above, give us a call at 515.987.0800 or request a quote online. Remember to always have your trees examined and worked on by an ISA Certified Arborist, as they are specifically trained in tree care.