Q: One of my five oak trees is having this problem and I’m wondering what I should do. I hope it’s not a disease that could spread to my other trees. Thanks for any advice you can give me. A ...

So before you head outdoors this summer, here's what you should know about poison hemlock and poison oak, including what both look like, which parts of it are most dangerous and where it tends to ...

Pacific poison oak is found throughout Western Oregon and Washington and can cause painful rashes and blisters. Luckily, the plant is avoidable if you know what to look for.

What do poison oak and poison sumac look like? Poison oak leaves have three leaflets like poison ivy but with rounded tips. The undersides of the leaves are fuzzy and lighter in color than the top ...

Q: One of my five oak trees is having this problem and I’m wondering what I should do. I hope it’s not a disease that could spread to my other trees. Thanks for any advice you can give me. A ...

This small tree grows up to 50 feet tall with shiny green leaves, small greenish-yellow flowers, and small, apple-like fruits. Ingesting this fruit can be fatal. The sap of this plant can cause ...

Every year the eastern cottonwood trees in Michigan release their fluffy seeds. The end of June likely marks the end of this process. Here's what to know.

Pacific poison oak is found throughout Western Oregon and Washington and can cause painful rashes and blisters. Luckily, the plant is avoidable if you know what to look for.

What does a poison ivy rash look like? How long does it last? The rash develops 12 to 48 hours after contact, and can last two to three weeks, according to the Mayo Clinic. It often appears in a ...

Estimated to be 13,000 to 18,000 years old, the tree — known as the Jurupa Oak — is older than almost any other plant on Earth. It has survived an ice age and rapid climate warming.

The wasp’s actions irritate the tree but don’t kill it. The wasp needs the tree to survive. In this relationship, only the insect benefits while the tree is mildly harmed. Other types of symbiotic ...