Timing the release of beneficials is critical to biocontrol success

By Heidi Wollaeger, MSU Extension, and and Dave Smitley, Michigan State University Extension, Department of Entomology:

Whether it be putting that frozen pizza in the oven or popping the question to your significant other, life is often all about timing. Likewise, implementing a biological control program in the greenhouse is no different. Michigan State University Extension reminds greenhouse growers that releasing beneficials in the greenhouse needs to be done preventatively when plants are first moved into production space to ensure that predators will be able to keep pest populations under control.

In order to provide effective control of thrips with a biological control program, growers must employ an intensive scouting program. In particular, inspect incoming cuttings, plugs and liners before bringing them into the greenhouse with other plant material as it will alert you of a potential problem.

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