Hornworms in Trouble, here in Come!

behlgarden(9)June 18, 2012

I spotted hornworm (a big fat one) on my bellpepper. Soon these will spread within days to a week all over my hot peppers and tomatoes. Not a chance!

I will be spraying Thuricide BT this week! Hormworms, beware!

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gumby_ct(CT it says Z5)

IF you see white speckles on the worm that is a parasite and it is recommended to leave them so the parasites will continue feeding and survive.

IF not I just cut the worm with scissors. I don't usu. see more than one in my garden every couple of yrs.

    Bookmark   June 18, 2012 at 9:50PM
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Last year I saw plenty. Once these spread they wreck havoc. I have not seen the other kind yet.

    Bookmark   June 18, 2012 at 9:56PM
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missingtheobvious(Blue Ridge 7a)

gumby_ct's white speckles are oval cocoons belonging to a tiny wasp (the cocoons are about 1/8" tall, so it really is a tiny wasp).

By the time the cocoons appear, the hornworm is beyond moving and the wasp larvae are no longer feeding, but it's advantageous to leave the caterpillar in place so the wasps can emerge and begin their lives' work of keeping more hornworms from becoming moths and breeding another generation of worms.

I tend to see about four hornworms in the same area at a time.

    Bookmark   June 19, 2012 at 1:22AM
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