Q: We have an infestation of caterpillars in our oak trees. Their droppings are covering our deck and driveway. Should we spray or just wait it out? Suzanne Freed, email A: You have a big population ...

Forests don’t always wake up as soon as spring arrives. Sometimes, they hold back. A new study suggests that oak trees ...

A new study shows that oak trees attacked by caterpillars can delay their spring leaf emergence by about three days, disrupting the insects’ feeding cycle. This shift cut future leaf damage by over ...

Question: Our oak tree is full of black worms and the sidewalk is covered in droppings. How do I get rid of these worms? Answer: In late summer the orange-striped oakworm can be found eating the ...

Oak trees around Minnesota have suffered from bouts of heavy precipitation and drought — conditions that make them more vulnerable to two-lined chestnut borer, a beetle that eats the inner bark of oak ...

INJURY ASSOCIATION OF NEW YORK STATE TEAM. THE 160,000 ACRES OF BERNHEIM FOREST AND ARBORETUM ARE HOME TO COUNTLESS PLANTS AND ANIMALS, AND AS OUR SAM CARTER DISCOVERED, THE FOREST NOW HAS AN EXPANDED ...

Q: I believe we have live oaks in our neighborhood. They have started sending up hundreds of little seedlings. Last year when this happened, I sprayed to kill them, but it turned the zoysia brown. I ...

Learn about leafrollers and their sticky bodies as they invade Tampa Bay. An oak leafroller inches across a pollen-speckled window in Clearwater. This caterpillar is the immature or larval stage of ...

Some of Sacramento's most iconic trees may soon be at risk and the culprit is a tiny beetle capable of killing valley and blue oak trees. The pests, called Mediterranean oak borers, were first ...