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Beneficial Insects

Beneficial Insects. Predatory Mites. Order Acari Family Phytoseiidae Life History: Several families; phytoseiids are used in agriculture and horticulture. Found in soil and leaf litter. Generations develop in one week. Prey: Two-spotted spider mites and other small arthropods.

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Beneficial Insects

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  1. Beneficial Insects

  2. Predatory Mites Order AcariFamily PhytoseiidaeLife History:Severalfamilies; phytoseiidsare used in agricultureand horticulture. Found in soil and leaf litter. Generations develop in one week.Prey: Two-spotted spider mites and other small arthropods. John Davidson

  3. Predatory Mites Predatory mite John Davidson Predatory mite in spider mite colony WhitneyCranshaw

  4. Ground Beetles Order ColeopteraFamily Carabidae Life History: Nocturnal, in or on soil, some live up to four years.Prey: Caterpillars, soil and tree insects, earthworms. Top: Harpalus sp.Bottom: Calosoma sp. Vera Krischik

  5. Lady Beetles Order ColeopteraFamily CoccinellidaeLife History: Many species, both larvae and adults are predaceous. Prey: Aphids, scale insects, mealybugs, whiteflies, spider mites, insect eggs. Jeff Hahn Pink Lady Beetle(Coleomegilla maculata), a native lady beetle

  6. Convergent Lady Beetle Order ColeopteraFamily CoccinellidaeHippodamia convergensLife History: Native and common in the Midwest; larvae and adults are both predaceous. Prey: Aphids. John Davidson

  7. Multicolored Asian Lady Beetle Order ColeopteraFamily CoccinellidaeHarmonia axyridisLife History: Introduced, invades homes in fall. Prey:Aphidsandscales. John Davidson JohnDavidson John Davidson

  8. Spider Mite Destroyer Lady Beetle Order ColeopteraFamily CoccinellidaeStethorus spp. Life History: Smalllady beetle used forbiological control.Prey: Spider mites. John Davidson Left to right: spider mite and three life stages of Stethorus: larva, pupa, adult John Davidson

  9. Twice-Stabbed Lady Beetle http://www.uoguelph.ca/~samarsha/lady-beetles.htm Cliff Sadof Order ColeopteraFamily CoccinellidaeChilocorus spp. Life History: Spiny larvae pupate in last larval skin.Prey: Armored or soft scales (depending on species). Top: adultBottom: larva

  10. Lady Beetles David Laughlin Mealybug destroyer (Cryptolaemus montrouzieri) adults feeding on mealybug egg mass (left) Whitney Cranshaw Twospotted lady beetle (Adalia bipunctata) adult and pupa with shed pupal skins (right)

  11. Encyrtid Wasps Order HymenopteraFamily Encyrtidae Life History: Larvae are parasitoids;adults live 2–3 days.Prey: Ticks, insect eggs, larvae, and pupae; beetles,bugs, moths, mealybugs, scales. John Davidson John Davidson Top: Encyrtus fuscus reared from hemispherical scaleBottom: Parasitized hemispherical scales turned black

  12. Minute Pirate Bugs Order HemipteraFamily AnthocoridaeLife History: Onegeneration takes20 days to complete,multiple generationsper year. Prey: Spider mites, insect eggs, aphids, thrips, scales, caterpillars. Orius insidiosus adult

  13. Minute Pirate Bugs Orius insidiosus nymph Minute pirate bug feeding on thrips Whitney Cranshaw

  14. Stink Bugs Order HemipteraFamily Pentatomidae Life History: Most feedon plants, but someare predaceous. Manydischarge a distastefulsmell when handled.Prey: Caterpillars and beetles such as Colorado potato beetle and Mexican bean beetle. Whitney Cranshaw Predatory stink bug feeding on elm leaf beetle larva

  15. Stink Bugs David Laughlin Whitney Cranshaw CW from top left: Podisus maculiventris adult attacking tussock moth caterpillar, Perillus bioculatus nymph feeding on beetle larva, P. bioculatus nymph feeding on hornworm John Davidson

  16. Assassin Bugs Order HemipteraFamily Reduviidae Life History: Assassin bugs feed by piercing prey with their beaks to suck out juices.Prey: Caterpillars, small flying insects, aphids, and leafhoppers. Wheel bug (Arilus cristatus)

  17. Green Lacewings Order NeuropteraFamily Chrysopidae Life History: Oval,white eggs laidsingly on stalks 8 mm long. Small gray larvae spin cocoons and pupate on undersides of leaves when they are 10 mm long. One to ten generations per year.Prey: Larvae feed on aphids and other small insects. Adults feed on honeydew and pollen.

  18. Green Lacewings John Davidson John Davidson John Davidson Clockwise from top left: eggs, larva, cocoons, adult

  19. Mantidflies Order NeuropteraFamily MantispidaeLife History: Nocturnalinsects that resemblemantids. Both larvaeand adults are predaceous.Prey: Spider egg sacs, bee and wasp larvae. Eggs David Laughlin

  20. Hand lens or loop

  21. Sources of Information • UC Statewide Integrated Pest Management Program • Assassin Bug • Lace wing video • http://www.syngenta-bioline.co.uk/ • Suppliers • Looking around at home

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