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trichogramma wasps https://www.dirtdoctor.com/efl/dirtDoctor/trichogramma-wasps-t9178.html |
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Author: | cyad [ Sat Apr 04, 2009 10:58 am ] |
Post subject: | trichogramma wasps |
Does anyone know if trichogramma wasps establish themselves in a particular area or must they be introduced to that area each year? Thanks |
Author: | Love My Garden! [ Sat Apr 18, 2009 4:09 pm ] |
Post subject: | Re: trichogramma wasps |
My understanding is that trichogrammas eat bag worms and other caterpillar and worm-type pests. I think you only need to release trichogrammas if you have one of those pests already. So, if you don't have the pests, the trichogrammas don't stick around. (Same as ladybugs: no aphids, the ladybugs move on to where there is a food source. I'm remembering this from reading one of Howard's books so maybe somebody who has first-hand experience will post. Hope you get rid of whatever pest is interfering in your garden! -Cara |
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