Tree & Shrub Pests & Diseases

Central New Jersey and eastern Pennsylvania are home to a wide variety of harmful insects and other pests that damage and kill trees and shrubs. Learn how to identify the signs and symptoms that indicate the presence of specific pests, and how to control them to minimize damage to your property. We focus on organic treatments and integrated pest management (IPM) to ensure the health of your plants, as well as our environment.

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5 Worst Tree Diseases in Central NJ & Eastern PA

Our area is home to a number of damaging diseases that injure, deform and kill trees and shrubs. In this article, we share five tree and shrub diseases commonly found in our area and describe what to look out for, the trees or shrubs that are typically infected, and available treatment or control options.

Spider mites and webs on a plant's leaves.

Are Your Plants Suffering From Spider Mites Infestation?

Spider mite is a pest that is so tiny that it’s hard to spot, but one that can cause a lot of damage to your trees and plants. Read this article to learn if your plants are suffering from this tiny pest.

Bacterial leaf scorch symptoms on elm leaves

Bacterial Leaf Scorch: FAQs

Brown, dying or scorched-looking tree leaves, especially on oaks, could be due to bacterial leaf scorch, which is fatal. Learn how to identify, control, and prevent it.

Boxwood Leafminer – A Major Pest Of Boxwood Shrubs

Have you seen small orange flies swarming around your boxwood shrubs? Spring is Boxwood Leafminer mating season! What can you do about them? Find out here.

remove ash trees in winter to control emerald ash borer

Control Spread of Emerald Ash Borer in New Jersey: Remove Ash Trees in Winter

According to the NJ Department of Agriculture, ALL ash trees in NJ are at high risk for EAB infestation within the next few years. Control the spread of EAB by removing infected ash trees during the winter - it's an ideal time to take down trees without damaging your lawn.

Close-up of two eastern tent caterpillars, destructive pests in New Jersey and Pennsylvania

Controlling Eastern Tent Caterpillars in Your NJ Landscape

If your trees have "tents" in the branches and are losing leaves, it's probably the Eastern tent caterpillar. Learn how to identify and control this pest.

Does Deer Repellent Really Prevent Deer Damage?

We're often asked if deer repellent spray is a good way to stop deer from eating plants and shrubs, particularly during the tough winter months when it seems like deer will eat anything they can reach. Here's the straight answer and our application advice.

Emerald Ash Borer Treatment Options In NJ & PA

There are several available EAB treatment options but they vary immensely in terms of effectiveness, safety and environmental impact. Learn about the available options and why we only recommend trunk injection with TreeAzin to treat emerald ash borer.

Facts About Spotted Lanternfly In New Jersey & Pennsylvania

Spotted lanternfly is a destructive, invasive pest that has recently spread from Pennsylvania into New Jersey where it's damaging crops, trees, fruit, herbs and more. Learn how to identify and report it, your treatment options and why removing Tree of Heaven is a good idea.