Galls are small, tumor-like growths formed on plants that act as incubators for oak gall wasp larvae. Parasitic wasps often lay their own eggs in these galls, which later feed on their victims. North ...

While walking around our property this week, I came across two interesting things going on with our pin oak trees. The first thing that caught my eye was what looked like a white grape growing from an ...

A gall is an abnormal growth or swelling of a plant caused by hormones released from insects, mites, bacteria, or nematodes. They can appear on any part of the plant with vast variation in morphology, ...

Have you ever noticed the bulbs that form on the stems of goldenrod? Believe it or not, those bulbs house the larvae of an insect called the goldenrod gall fly. This fly is completely dependent on the ...

This sounds to me like your witch hazels have galls. Insect and mite galls are common on trees and shrubs throughout the Chicago area and are generally nothing to be concerned about. Leaf galls rarely ...

Insects can reprogram plant growth, transforming ordinary plant parts into intricately patterned shelters that are safe havens for feeding and reproduction. These structures, called galls, have ...

Insect-induced galls represent a fascinating mode of plant-insect interaction where specialised insects manipulate host plant tissues to form complex structures that provide both shelter and nutrients ...

Your description suggests your shrub has galls. Insect and mite galls are common on trees and shrubs throughout the Chicago area and generally are nothing to be concerned about. Leaf galls rarely ...

Woolly oak gall Goldenrod ball gall and bunch gall on same plant. Ruth Smith photo. Oak apple gall. Ruth Smith photo. A friend sent me a text message recently in which she asked, “Any idea what these ...

Plants often develop bumps or other odd growths that might remind one of a science fiction movie, but there’s no need be alarmed. These unusual appearing growths are called galls and are usually more ...

Bootanomyia dorsalis is native to Europe, but has been found in multiple locations across North America. Native to Europe, B. dorsalis is one of the world’s many parasitoid wasps, insects that lay ...