WE HAVE LEAF GALLS, STEM INTO A -- STEM AND TWIG GALLS, AND FLOU -- AND FLOWER GALLS. RAY: WHAT CAUSES A GALL? >> THEY ARE BACTERIA, FUNGI, NEMATODES, MITES, AND INSECTS.

The stem (elliptical) gall is caused by Gnorimoschema gallaesolidaginis, the goldenrod gall moth, with an opposite life cycle. The female moth lays an egg on a leaf on the lower stem where it ...

A UC master gardener offers advice to SLO County residents who have damaged avocado leaves, which could be caused by mites that peak in summer.

Leaf galls rarely cause serious harm because unaffected leaf tissue will continue to produce food for the plant. Insecticide applications rarely provide any effective control of insects and mites ...

We also saw an outbreak of oak leaf itch mites last year. This mite feeds on the larvae of the midge fly that actually causes certain types of oak leaf galls. Though the marginal leaf gall is more ...

Adult gall-making insects and mites are the only life-cycle stages outside the gall, so contact insecticides do not work well either.

Plant galls can also be triggered by mites, fungi, or disease, but insect-related galls represent the majority of those I frequently get asked about.

Maple galls One of the most common galls found in landscape trees is Maple bladder gall, caused by a mite that overwinters on the bark of maple trees, particularly Silver Maple.

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 ...

Two ball or apple galls have formed on this goldenrod stem. The larva inside will stay there through the winter and complete their development in the spring, then emerge as small adult goldenrod ...

Dallas (KDAF) — A viral hack claims to help shoppers pick the perfect avocado at the grocery store, but does it really work? In this week’s “Verified or Denied,” we put two popular methods ...

The types of critters that make galls include eriophyid mites, jumping plant lice, aphids, adelgids, gall wasps and gall midges. There are several types of galls including leaf galls, stem and twig ...