Peppermint is host to a large complex of arthropods, both harmful and beneficials, in this region. An integrated management approach depends upon good information on the biology of pests and beneficials as well as a set of workable management practices. The IPMP program is intended to assist mint growers, consultants, and others with decisions on how best to manage insects and mites on mint. A Guide to Peppermint Insect and Mite Identification and Management, which is available from the publication offices either at Oregon State University in Corvallis or at Washington State University in Pullman.
Pest management begins with accurate identification of insects and mites.
Incorrect identification can result in the needless use of an insecticide and destruction of beneficial predators and parasites. Mint fields must be inspected on a regular basis to establish population trends and to determine whether or not control is necessary. The use of treatment thresholds will reduce the unnecessary use of insecticides, which will save money, protect natural predators and parasites and delay the development of insecticide resistance. Natural parasites and predators may be sufficiently abundant in some mint fields to suppress pest populations without the use of insecticides or miticides. This guide was prepared to help individuals accurately identify and sample mint pests and beneficial insects and mites, and to develop sound pest management decisions based on treatment thresholds.