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 ...

Q: I noticed, when watering my fledgling tomato plant the other day, that its leaves are covered in yellow squiggles. I’m thinking some little buggy thing has attacked it. Is there something to be ...

Q: I have boxwoods that are swarming with these tiny, orange, mosquito-looking insects. What could they be? PW Chapman, email A: “Orange” is the key descriptive word. No other small insect is orange ...

An insect with a broad range across North America seems to be developing an appetite for an important cash crop: soybeans. The leaf-mining insect was previously known to only feed on two plants, but ...

Don’t jump to the conclusion that those mysterious marks are evidence of disease. They may be leaf mines or galls — and that’s a good thing. 13 Photos View Slide Show › By Margaret Roach During the ...

I have been gardening in the Lehigh Valley for 11 years. Every year I grow garlic and assorted other onions. Last summer, I lost my whole garlic crop to allium leaf miners; it was the first time I ...

In tree canopies, incoming solar radiation interacts with leaves and branches to generate temperature differences within and among leaves, presenting thermal opportunities and risks for leaf-dwelling ...