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Sonoma County Master Gardeners Helping Sonoma Gardeners

Beneficial Insects
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These insects are the "garden good guys"


ladybug
Lady beetles (aka ladybugs)

Ladybugs are great against aphids, scale, spider mite and mealybugs

 

 

 

 

 

 

 

 

 

 

syrphid fliy
Syrphid flies

Syrphid fly larvae feed on aphid

 

 

 

soldierbeetle
Soldier beetles

Soldier beetles feed on aphids, caterpillars and grasshopper eggs

 

 

 

 

 

 

 

 

Spiders

All spiders are predatory, which makes them excellent biological control agents.

 

Parasitic wasps

Female wasps lay eggs in aphids, which kills them

Dragonflies

A single dragonflies can eat up to 300 mosquitos a day . . .

 

Ground beetles

 

Snake flies

Snakeflies are predatory insects native to Western North America. They are related to lacewings, antlions, and dobsonflies. Both adults and larvæ prey on orchard pests.

Minute pirate bugs

Adults and nymphs feed on insect eggs, thrips, mites, aphids, whiteflies, and small caterpillars

Assassin bugs

Assassin bugs prey on caterpillars, leafhoppers, and aphids

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