This disease can also infect stems, resulting in tip dieback. A leaf spot on an English ivy. Start by removing infected leaves and stems, if possible, to slow the spread of the disease.

Photo of poison ivy. Poison ivy belongs to the Anacardiaceae family, and there are about 30 species that grow in the Americas, but mostly Asia, according to the American Museum of Natural History.

A poison ivy plant appears at Lancaster County Park, in Lancaster, Pa., on July 22, 2010. Botanically known as Toxicodendron radicans, poison ivy contains oily chemical compounds called urushiols ...

09:06, Thu, Jul 17, 2025 Updated: 09:22, Thu, Jul 17, 2025 English ivy spreads aggressively by rooting stems and seeds dispersed by birds, which can potentially end up smothering nearby plants. It ...

by Stuart Tomlinson Sat, October 29th 2016 at 6:00 PM Updated Sat, October 29th 2016 at 6:43 PM 9 VIEW ALL PHOTOS ...

A thick clump of ivy provides a wealth of benefits for our wildlife, says Norfolk Wildlife Trust reserves officer, Robert Morgan.