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Asparagus Beetles |
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species: |
common asparagus
beetle 12-spotted asparagus beetle ORDER: Coleoptera - leaf chewers pests as larva and adults |
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identification: |
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adult |
1/4-inch long common: shiny metallic blue-black with
yellow and red spots
spotted: reddish-orange with 6 spots per wing cover |
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larvae |
olive-gray, hump-backed sluggish grubs |
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host plants: |
asparagus |
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symptoms: |
chewing on growing
tips & ferns brown-black excrement stains & feeding scars on spears brown bullet-shaped eggs on spears |
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biology: |
O/W as adults |
| CONTROL OPTIONS |
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physical: |
hand pick & crush |
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cultural: |
harvest spears ASAP destroy O/W plant debris & tras |
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biocontrol: |
parasitic wasp |
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least-toxics: |
pyrethrin |
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conventional insecticides: |
diazinon, malathion |
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