Integrated pest management (IPM) is the use of various procedures to control pests, starting with those that have the least impact on the environment and, then, combining them with more aggressive procedures until control is attained. It includes the use of biological control agents (BCAs), i.e. insect parasites, predators, and disease-causing pathogens; cultural control, such as destruction of crop debris; mechanical control, such as screening of greenhouse ventilators; and lastly chemical control.

Several universities in the United States conduct research on IPM and publish information that can be adapted to the hobby orchid grower. A few university resources are listed below.

Oklahoma State University Fact Sheets

Select BCA Suppliers

Although OOS offers no endorsement, a few US suppliers of biological control agents are listed below alphabetically.



Orius insidiosus on a Cattleya flower

Orius insidiosus, which has the common name “insidious flower bug,” is a species of minute pirate bug, a predatory insect that is considered beneficial, as it feeds on small pest arthropods and their eggs. Orius insidiosus uses its long rostrum (feeding tube) to pierce its prey and suck out their contents. It is an aggressive thrips predator, attacking and killing all stages of thrips, including the adults. It will feed on other pest species, too, including mites and aphids.

Some of the text about this image is from Wikipedia, and is available under the Creative Commons Attribution-ShareAlike License.