Insect Problems of Hibiscus - Lee County Extension

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What to do • If contact insecticide is used, timing g to kill the crawler stage is critical since applications made too late may not control scales, because of their waxy covering, and may interfere with natural enemies, aggravating gg g the pproblem. • Horticultural oils control soft scales during most of their lives and control hard scales only shortly after egg hatch when their covering is relatively thin • Horticultural soap will control soft scales but not recommended for the control of armored scales
What to do For the control of both soft and armored scales: • Neonicotinoides including those with active ingredients Acetamiprid, Dinotefuran and Imidacloprid (Merit, Bayer Advanced GardenTree and Shrub Insect Control) • Acephate; Azadirachtin; Bifenthrin (talstar), Cyfulthrin (Bayer Advanced Garden Power Force Multi-Insect Killer); Dysulfoton (Bayer Advanced Garden 2-in-1 systemic Azalea, Camellia & Rhododendron Care); Malathion; Pyhomatoxin; Pyrethroid; Pyriproxyfen • Click here for more on scales and mealybugs
Page 1 and 2: Insect Problems of Hibiscus Stephen
Page 3 and 4: Insect and Mite feedings represent
Page 5 and 6: Aphids Aphids accumulate on new lea
Page 7 and 8: What to Do • Natural enemies incl
Page 9 and 10: Mealybug damaged hibiscus in foregr
Page 11 and 12: Solenopsis mealybugs infestation Cl
Page 13 and 14: Striped Mealybug Striped mealybugs,
Page 15 and 16: Papaya Mealybug (Paracoccus margina
Page 17 and 18: What to Do • Inspect plants befor
Page 19 and 20: What to Do Ladybird larvae Lacewing
Page 21 and 22: Pink Hibiscus Mealybug • First de
Page 23 and 24: Pink Hibiscus Mealybug
Page 25 and 26: Pink hibiscus mealybugs adult femal
Page 27 and 28: Pink Hibiscus Mealybug Toxic saliva
Page 29 and 30: What to do: Homeowners • DPI has
Page 31 and 32: What to do: Professional and Grower
Page 33 and 34: Lesser Snow Scales (Pinnaspis strac
Page 35: Lobate Lac Scales (Paratachardina (
Page 39 and 40: Haplothrips sp. (Haplohrips) Damage
Page 41 and 42: Liothrips varicornis (Liothrips) Li
Page 43 and 44: Liothrips p varicornis larvae and a
Page 45 and 46: What to do • Several arthropods h
Page 47 and 48: Myllocerus undatus
Page 49 and 50: What are Midges? • Gnat-like flie
Page 51 and 52: Larva that has just existed the inf
Page 53 and 54: What to do • Remove all dropped b
Page 55 and 56: Key Diseases of Hibiscus • Anthra
Page 57 and 58: What’s that black discoloration h
Page 59 and 60: Slides from the collections of •

Insect Problems of Hibiscus - Lee County Extension

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