Having trouble with pests in your greenhouses and high tunnels?
Interested in learning more about using biological control to manage them? Read
SARE's new fact sheet, Sustainable Pest Management in
Greenhouses and High Tunnels, to learn how beneficial
insects can protect crops in season-extending structures and enhance the
sustainability of your operation.
SARE-funded researchers at Cornell University found that with a
combination of controls, greenhouse and high tunnel pests could be managed
effectively and, in some cases, eradicated.
Highlights of 23 New York case studies include
the development of an effective combination of parasitic wasps (Aphidius colemani and Aphidius ervi) to eradicate an aphid infestation on
winter greens and peppers. And predatory mites (Amblyeius cucumeris)
used in conjunction with minute pirate bugs (Orius insidiosus)
helped eradicate thrips on cucumbers. Researchers also found that the
two-spotted spider mite was effectively managed by applying a parasitic mite (Phytoseiulus persimilis) on eggplant and strawberries.
The Nile Delta wasp (Encarsia formosa) helped manage,
and in some instances, even eradicate whiteflies on tomatoes.
The fact sheet includes an introduction to biological control,
along with colorful photos that can be used to identify pests and their
associated crop damage. It also provides specific how-to information on
scouting for pests along with detailed release information, including optimal
temperature, quantity of natural enemies and timing of release relative to pest
populations. Management strategies for control agents, such as predatory mites
and parasitic wasps, and a supply list for obtaining biological control agents
are also found in the fact sheet.
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