The gall midge, Feltiella acarisuga, is a mosquito-like insect that can greatly assist in biological control of two-spotted spider mites (TSSM) in greenhouse vegetables.
Research is continuing to develop more effective controls and applications.

OVERTON – A new greenhouse largely funded by the Texas nursery plant industry will research ways to reduce chemical use and increase biological control of insect and other pests, said Texas AgriLife Extension Service experts.
They not only remove leaf material, but also reduce yield by feeding directly on fruits

Predatory mites can differ in their taste for different life stages of spider mites

Although it is wonderful to be able to choose from an array of predatory mites for biological control of the two-spotted spider mite, such choice has also made life more complicated. We need to gain as much information as possible about the various species when choosing the species of predator to release, and in determining the timing of release.
Study looked at number of eggs laid daily and total number of prey or eggs killed

Which are most effective in controlling two-spotted spider mites?

Greater success has resulted in growers developing more confidence in its use.
Bio-fungi potential: promising new products.
This is first of a two-part mini-series discussing some of the developments in organic and sustainable horticulture that have taken shape in Cuba over the last 20 years. “Perhaps there are lessons to be learned by those of us growing for food in the West.”
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