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Ed from Fort Worth, Tx writes

Will Fertilome Tree and Shrub Systemic Insect Drench control Bagworms?

I have a Weeping Bald Cypress that is covered in Bagworms. Will the systemic take care of them when they hatch?

Answer:

No, Fertilome Tree and Shrub Systemic Insect Drench is not labeled for bagworms.

It is important to start control methods before a major infestation occurs. Once the bagworms have matured and have formed the "bag" most chemical control methods will no longer work.

You can manually control bagworms by simply plucking them off of the infested trees and dropping them into a bucket of soapy water or squishing them.  This control method is most useful during fall, winter and early spring, before the eggs inside the bag have hatched.

Chemical control may be achieved when the larvae are small and just emerging from the over-wintering bag.  Use a concentrated liquid insecticide such as OrtheneTalstar or Tempo. Foliage should be thoroughly wetted with the insecticide spray in order to achieve thorough coverage.  When doing an insecticide treatment, timing is key. To find out the correct time of year to treat for bagworms in your region contact you local Cooperative Extension office. These offices can prove to be invaluable when treating for insect pests.

Answer last updated on: 06/22/2016

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