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The products and living organisms listed in this table suppress pests of vegetable crops. Some biological controls are naturally occurring, some are insects purchased by farmers for pest control, and some are microbes formulated for sale as biopesticides. Most are exempt from EPA registration.

Part 1. Established beneficial insects that live on New England farms

SCIENTIFIC NAMECOMMON NAMETARGET PESTSCOMMENTS
Chrysopa and Chrysoperla spp.Green lacewingsAphids, thrips, mites, whiteflies, leafhoppers, small caterpillars, insect eggsLarvae feed voraciously on many small insect pests. Common throughout the US, and available commercially.
Coleomegilla maculataTwelve-spotted ladybeetleAphids, small caterpillars, small beetle larvae, insect eggsNative to North America. Both adults and larvae are predators. Wide range of prey and of crops and habitats. Feeds on newly hatched larvae as well as insect eggs. Also eats pollen.
Cotesia congregatusBraconid waspTomato hornwormParasitic wasp that lays eggs in hornworm caterpillars.
Cotesia rubeculaBraconid waspImported cabbageworm (ICW)Parasitic wasp that lays eggs in small ICW. Exits and spins white, oval cocoon. Introduced to New England in 1988; now well established.
Harmonia axyridisMulticolored Asian ladybeetleAphidsAdults have many variable markings. Both adults and larvae are predators. Renowned for invading homes in fall. May be a pest of grapes. Introduced to North America; widespread range.
Orius insidiosusInsidious flower bugAphidsCommonly found in corn. Small (3 mm).
Podisus maculiventrisSpined soldier bugBeetle larvae, caterpillars, insect eggs, aphidsPrey includes Colorado potato beetle. Both adults and nymphs are predators. Uses piercing sucking mouthparts to feed on soft-bodied insects.
Syrphidae speciesSyrphid fly larva (immature of hover fly)Aphids, small caterpillarsAdult hover flies mimic bees and feed in flowers. Immatures are voracious aphid predators; legless, cream or brown in color, found in aphid colonies.

Part 2: Biological control organisms, released or applied to crops

SCIENTIFIC NAMECOMMON NAME(S)TARGET PESTSCOMMENTS
Beauvaria bassiana Strain GHAMycotrol ESO, BotanigardAphids, whiteflies, thrips, Colorado potato beetleThis fungus penetrates the insect cuticle, fills its body, kills it, and releases more spores. Apply in the evening and target coverage of lower leaves, as spores are inactivated by sunlight. Use preventatively based on monitoring, before pests reach high levels. Can be tank mixed with other microbials for Colorado potato beetle.
Isaria fumosorosea Apopka Strain 97 (formerly Paecilomyces fumosoroseus)PFR-97OG, PreferalOGaphids, mites, thrips, whiteflies, leafminers, rootworms, wireworms, grubs, caterpillarsA naturally occurring fungus that penetrates the cuticle of insect pests.
Metarhizium anisopliae Strain F52Met 52ECthrips, whiteflies, mitesComposed of spores of a naturally occurring entomopathogenic fungus. Spores attach to the insect and hyphae penetrate the exoskeleton, growing inside and causing death in 3-7 days. Labeled for use as a foliar spray or soil drench on field and greenhouse onions to control thrips, and on field and greenhouse celery, lettuce, spinach, peppers, and tomatoes to control thrips, whiteflies, and mites. Persistence will generally be higher when incorporated into soil, but may be effective for a few months even in foliar applications.
Pediobius faveolatusNo common nameMexican bean beetleSmall parasitic wasp of the Eulophid family, which attacks Mexican bean beetle larvae. Releases should be timed to coincide with egg hatch because wasps lay eggs in young larvae, which are then killed and form a pupal case, or 'mummy', from which a new adult wasp will emerge.
Steinernema and Heterorhabditis spp.Beneficial nematodesCutworms, white grubs, wireworms, maggots, beetle larvae, soil-dwelling adult insectsVery small roundworms, mass-reared for commercial use. These seek out and penetrate their host insects, multiply within the host and kill it. They are most likely to be effective against the soil-dwelling immature stages of susceptible hosts. Nematodes require moist soil conditions to survive.
Trichogramma ostriniaeNo common nameEuropean corn borerTiny parasitic wasp that oviposits in the eggs of European corn borer. Its larvae grow and pupate in the eggs, preventing borer hatch. Start release when ECB flight begins. In sweet corn, release at 30-60k per acre per week, for 2-3 weeks per block. In pepper, release 90-120k per acre per week over 4 weeks. Reproduces in season but does not overwinter. Available from IPM Laboratories, Locke, NY.
Trichogramma pretiosumNo common nameCaterpillar eggsMay be used in brassica crops and other crops with caterpillar pests.

OGListed by the Organic Materials Review Institute (OMRI) as approved for use in certified organic production.