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LEDPIDOPTERA

LEDPIDOPTERA. Butterflies, moths, and skippers. LEDPIDOPTERA. Lepis: scales Ptera: wings Complete Larva: chewing 2 pair Covered with scales (powdery) Butterfly: hold wings vertically Moth: flat, roof-like, or curled around body. LEDPIDOPTERA. Bacillus thurengiensis (Bt)

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LEDPIDOPTERA

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  1. LEDPIDOPTERA Butterflies, moths, and skippers

  2. LEDPIDOPTERA Lepis: scales Ptera: wings Complete Larva: chewing 2 pair • Covered with scales (powdery) • Butterfly: hold wings vertically • Moth: flat, roof-like, or curled around body

  3. LEDPIDOPTERA Bacillus thurengiensis (Bt) Butterfly is diurnal (day) • Pupa referred to as chrysalis Moth is nocturnal (nocturnal) • Pupa in silken cocoon or leaf litter

  4. BAGWORM • Larva-in-a-bag • Bag is silk and foliage/debris

  5. BAGWORM • Adults do not feed • Female: wingless, grublike; never leaves bag • Lays eggs in bag then dies (1000 eggs/bag)

  6. BAGWORM • Male: small, brown clear wing moth • Mates, dies

  7. BAGWORM HOST • Mostly conifers (junipers and arborvitae) • Some deciduous

  8. BAGWORM DAMAGE • Skeletonizer of foliage

  9. BAGWORM MONITOR • Visual inspection for bags in June

  10. BAGWORM CONTROL • Handpick and destroy • Parasitic wasp provide control, often after damage done • Pheromone used to disrupt mating

  11. AZALEA CATERPILLAR

  12. AZALEA CATERPILLAR HOST • Azaleas

  13. AZALEA CATERPILLAR DAMAGE • Defoliate branch • Feed in large groups at end of branches in late summer

  14. AZALEA CATERPILLAR MONITOR • Visually inspect in late July • Tend to repeat on same hosts

  15. AZALEA CATERPILLAR CONTROL • Prune or handpick

  16. WEBWORMS (81) • Fall webworm: web at end of branches in July to fall

  17. WEBWORMS (81) • Tent caterpillar: web in crotches in spring

  18. WEBWORMS (81) • Mimosa webworm: upstate on mimosa and honeylocust

  19. Spiders

  20. WEBWORMS (81) HOSTS • Just about anything woody • Prunus species, pecans especially

  21. WEBWORMS (81) DAMAGE • Defoliates branches • Mainly visual

  22. WEBWORMS (81) MONITORING • Visually inspect plants

  23. WEBWORMS (81) CONTROL • Pruning or remove nest • Difficult to penetrate nest for other control

  24. GYPSY MOTH (82) • Dark larva with red dots • Adult: white female with inverted V • Introduced from Europe in 1887 • Escaped from silkworm research

  25. GYPSY MOTH (82) HOST • Most serious pest of NE deciduous plants

  26. GYPSY MOTH (82)

  27. GYPSY MOTH (82) DAMAGE • Complete defoliation by larva • Feed at night, crawl down to hide in bark and litter • Weakens host… susceptible to other pests

  28. GYPSY MOTH (82) MONITORING • Burlap wrap of trunk to count larvae

  29. GYPSY MOTH (82) MONITORING • Pheromone traps • Egg mass counts in winter

  30. GYPSY MOTH (82) CONTROL • Predator and fungus release • Success • The dramatic decline of the gypsy moth population in New Jersey is due to the combination of effective treatments in spring of 2009 and the impacts of predatory parasites and natural fungus that kill gypsy moth caterpillars, according to Douglas Fisher, the state’s agriculture secretary.

  31. LEAFROLLERS • Indistinct green larva • Roll leaves or tie leaves together for protection

  32. LEAFROLLERS • HOST • Sweetgums (tiers), canna (rollers)…

  33. Vinca Leaf Roller

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