As the infection takes hold, the spots grow and the centers of the spots turn pale gray, while their borders take on a red, brown or purple color. In the middle of the pattern, you may see small black ...

Leaf miners are just one of the many pests that affect our gardens. The two leaf miner types most often found in Marin are the Liriomyza spp., a mostly black and yellow fly with clear wings, and ...

Fossil plants reveal the evolution of green life on Earth, but the most abundant samples that are found -- fossil leaves -- are also the most challenging to identify. A large, open-access visual leaf ...

RICHMOND, Va. (WRIC) — Most of us have heard the old saying, likely from adults trying to protect us when we were young and inexperienced: “Leaves of three, let it be.” But is that truly an accurate ...

In just a decade, this unusual disease has spread from Ohio across the Northeast. Scientists are testing treatments, but answers come slowly. Backlit leaves of an American beech tree show dark bands, ...

Saturday’s article on holiday cacti talked about the leaves being the key to correct plant identification. Now, maybe you don’t care which plant you’re growing, but, if you’re like me, you do. The ...

Poison ivy, poison oak, and poison sumac are plants that can cause an allergic skin reaction. These poisonous plants contain an oil that can trigger the body’s immune system and produce a rash.