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Common Insects and Their Management
Jeff SchalauAssociate Agent, Ag. & Nat. Res.
University of Arizona Cooperative ExtensionYavapai County
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Grasshoppers
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Grasshopper Management
• Natural Enemies– Poultry
• Cultural Control– Maintain green border– Physical barriers
• Chemical Control– Baits and sprays containing carbaryl– Nolo Bait (Nosema locustae) not effective
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Thrips
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Thrips Management
• Natural Enemies– Minute Pirate Bug, predaceous mites
• Cultural Control– Control weeds, high pressure hose,
remove old flowers, row covers, reflective mulch, be patient
• Chemical Control– Neem, systemics (Orthene, Merit) on
non-edible crops
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ElmLeafBeetle
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Elm Leaf Beetle Management
• Natural Enemies– Black Tachnid Fly (marginally effective)
• Cultural Control– Tolerate some damage
• Chemical Control– Bark banding with carbaryl– Bt var. tenebionis– Neem– Systemics
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BoxElderBug
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Box Elder Bug Management
• Natural Enemies– None known
• Cultural Control– Eliminate host trees– Screen windows, caulk, weatherstrip
• Chemical Control– Not recommended-nuisance insect
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Cypress Bark Beetle
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Cypress Bark Beetle Management
• Natural Enemies– ???
• Cultural Control– Irrigate susceptible species to maintain
vigor• Chemical Control
– Trunk sprays containing carbaryl
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Pitch Moth
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Pitch Moth Management
• Natural Enemies– None known
• Cultural Control– Irrigate susceptible species to maintain
vigor– Phyisical control
• Chemical Control– None
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Spider Mite
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Spider Mite Management
• Natural Enemies– Predatory mites, minute pirate bugs,
lacewings, bigeyed bugs• Cultural Control
– Avoid dust build up with high pressure hose
• Chemical Control– Soaps/oils, miticides in extreme cases
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Blister Beetles
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Blister Beetle Management
• Natural Enemies– None (but they eat grasshopper eggs)
• Cultural Control– Physical barriers
• Chemical Control– Carbaryl, malathion, stomach poisons
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Agave Snout Weevil
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Agave Snout Weevil Management
• Natural Enemies– None known
• Cultural Control– Remove and destroy infested plants
• Chemical Control– Put in mescal bottles
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Flea Beetles
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Flea Beetle Management
• Natural Enemies– Parasitic wasps
• Cultural Control– Control weeds– Row covers on vegetables
• Chemical Control– Carbaryl– Malathion– Acephate
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Grasshoppers
Citrus
Corn
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Grass Hopper Management
• Natural Enemies– Birds, Guineas, Chickens– Nosema locustae
• Cultural Control– Physical Barriers (screens, row covers)
• Chemical Control– Carbaryl– Neem– Acephate for ornamentals