Tent Caterpillar Control: Scrape off and discard overwintering egg masses and tear the protective tents out by hand before the larvae start to feed. Control caterpillar movement and restrict access to feeding areas with Tanglefoot Pest Barrier. Apply Bacillus thuringiensis, var. kurstaki (Bt-k) or Monterey Garden Insect Spray (spinosad) to the leaves to kill feeding caterpillars. If necessary, spot treat with botanical insecticides as a last resort. Spray must penetrate silken tents for effective control.
I have seen women looking at jewelry ads with a misty eye and one hand resting on the heart, and I only know what they're feeling because that's how I read the seed catalogs in January.
Insecticidal soap is supposed to be organic. I never had a problem with tent caterpillars so I can't really help you. I googled it when I was trying to remember what we used to spray on our apples (organic horticultural oil). I only remembered that it had to be done in late winter.
I found this article and it looked interesting. Bagging the apples!
Does anyone have an organic fix to tent caterpillars? And other bugs on my fruit trees? We have aphids, but plan to spray soap stuff on them---although how organic is insecticidal soap? I have alot to learn yet!
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