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Thomas from Bryan, Tx writes

Will Malathion 57% kill bag worms?

Have cedar trees many quite large, covered with bagworms. Will malathion 57% kill them, and how strong to mix it in sprayer?

Answer:

Malathion 57% is not labelled for bagworms. We would suggest using Talstar P or Bifen IT to treat for bagworms. You will mix at 0.5 fl oz to 1.0 fl oz per gallon of water and reapply every 30 days outdoors. If they have already formed the bag, you will have to manually remove them and drop into a bucket of soapy water. You can read more on Bagworm Control here. 

Answer last updated on: 04/07/2020

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