Insect Pests

wool sower gall on an oak tree

Fuzzy growth on oak trees: Wool sower galls

If you spend enough time looking at and working with plants, you'll inevitably come across galls. Galls are abnormal growths and can be caused by a variety of different organisms, including insects (like aphids, flies, wasps) and mites, and occasionally nematodes, fungi, and bacteria. Galls can be...
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Why are there holes in my roses? Roseslugs. Roseslug larva feeding on the leaf of a rose.

Why are there holes in my roses? Roseslugs

Roses are grown in many gardens for their large, showy, often fragrant flowers. If you grow roses, you may have noticed something eating the leaves of your plants, causing them to become unsightly. While Japanese beetles often get much of the blame during the summer months, they aren’t the only...
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