Oak trees are focal points of many home landscapes, parks, and green spaces throughout Wisconsin. Several species are native ...

Cicada season may be over, but another pest emerges right after. Here's how to prevent possible bites and rashes from oak ...

I have a 20-year-old pin oak tree that has small sections where leaves are turning brown. It's happening on different sections of the branches, not through the whole thing. Is that a sign that a ...

A new pest may emerge in Ohio as Brood XIV cicadas conclude their 17-year life cycle. Oak leaf itch mites can bite people, ...

On this edition of ID That Tree, meet a species of native Indiana oak from the broad red/black oak family, which is found in bottomlands and areas with imperfectly drained soil, the Pin Oak. This ...

The oak leaf itch mite – Pyemotes herfsi, first identified just a decade ago – hangs around gall formations established on tree leaves by insects such as midges.

Q. We have a pin oak tree that is approximately 30 feet tall. On the north-facing side of the tree there are many wilted leaves, and there are many balls of strange growth. Pictures of the leaves and ...

It looks like oak gall on pin oak leaves is back this spring By Dennis Patton. May 10 ... Also, severe infestations of twig galls can cause twig dieback or, rarely, tree death.

The insect is especially fond of pin oak trees, ... First, a female wasp will lay her eggs in a bud of emerging leaves in the spring. That causes a small gall, almost like a blister, on the leaf.

The pin oak’s pyramidal shape and fine branches provide a year-round silhouette in the backyard. The glossy green leaves turn russet, bronze or red in the fall. Though tolerant of most growing ...

A rare look at the earliest stage of a pin oak tree shows how an acorn develops roots and leaves. Learn how one seedling was identified, transplanted and its role in supporting local wildlife.