The elm zigzag sawfly is an invasive sawfly that attacks elm trees. Populations were detected in Wisconsin for the first time in July 2024 and were quickly found in several counties across the state. In many cases, damage may be minor, but this invasive pest does have the potential to cause significant defoliation of elm trees.
In this video, you will learn what research studies have found about how pesticides affect pollinators and songbirds. You will also learn about what people have done to help in their yards and communities to aid pollinator health and habitats.
In this video, learn how to select and care for plants to attract and support diverse pollinators in your garden all season long. This presentation emphasizes native plants and pollinators and includes sustainable gardening practices.
By: PJ Liesch, Extension Entomology Specialist Even though insects can cause damage to our plants, not all of them are harmful. In this video, you will learn how to look for signs of insects, why identification is required, and different control options and methods. The first step in the management process of insects in yards […]
Plum curculio is one of the most common and detrimental pests of apple and other fruits in Wisconsin. Learn about the life cycle, damage patterns, and control options to effectively manage plum curculio.
If you’ve noticed masses or writhing, dark green “caterpillars” on your pine trees this spring, you likely have an infestation of European pine sawfly. To learn more about this pest, read this article…
If you have an apple tree in your backyard, you’ve probably found out that apple maggot likes your fruit as much as you do. Learn more about this pesky fly and what to do about it in this article…
Spotted wing Drosophila is an invasive vinegar fly that can affect a wide variety of fruits, especially raspberries, in Wisconsin. Learn identification and management techniques in this factsheet.
Colorful butterflies can add a lot to a garden. Learn how to create a butterfly garden that will be attractive to many different types of butterflies in this article…
The Japanese beetle, Popillia japonica, is a significant pest of landscape trees and shrubs, vegetable and fruit crops, and turfgrass. This factsheet describes the lifecycle of this beetle along with management and control options.
Fungus gnats (Family Sciaridae) are insects commonly associated with overwatered houseplants. They can become a nuisance when they are present in large numbers and fly around inside a home. In most situations, fungus gnats are a cosmetic problem. However, on occasion, fungus gnat larvae can cause plant damage.
While Zimmerman pine moth prefers Austrian and Scots pines, it will also attack Eastern white and mugo pines in the landscape. Learn about damage caused by this pest and control strategies in this factsheet.
