Q • My oak trees have more large galls than I’ve ever seen on them, and I’m worried about their health. What can I do about ...

What are parasitoid wasps? Learn about these wasps that have a gruesome but fascinating way of surviving.

Galls form when certain wasps, including species like Kokkocynips decidua and Kokkocynips rileyi, lay their eggs in oak tissues. These growths become shelters where wasp larvae develop.

After many kilometres, the chain on my bike comes off next to a majestic oak. The tree becomes Quercus: a friend, a confidant ...

Eucalyptus gall wasps, particularly the invasive Leptocybe invasa, present a serious threat to forestry and ecosystem health worldwide. These wasps induce the formation of specialised galls on ...

The chestnut gall wasp, Dryocosmus kuriphilus, represents a significant threat to chestnut production worldwide due to its capacity to induce extensive gall formation that compromises tree health ...

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

Oklahoma deploys parasitoid wasps in forests to combat the emerald ash borer, a beetle that’s killing ash trees across the state and the U.S.

Foresters are using parasitoids to reduce the spread of the emerald ash borer beetle, following the lead of many states to ...

Nearly invisible to the naked eye at just 0.2 millimeters long, oak leaf itch mites commonly feed on larvae of oak gall midge flies that live on pin oak leaves.

"I used to have a whole set of these, with Fijian currency on them. It's for tourists, so they have some hope of not getting ...

And not long thereafter, a handful of these toadflax plants were collected from English gardens and toted across the Atlantic ...