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tomato horn worm

Posted by ChicagoDeli37 none (My Page) on
Mon, Sep 3, 12 at 19:23

Is there a specific time if year these guys decide to come out?

The last few weeks I've been noticing a lot of black balls on the ground under my tomatoes that im assuming is their sh*t. I've found a few big ones but then the next day there's more balls ..

Is this time of year time for them or am I just starting to notice them?

Where do they even come from and how could I get rid of them without actually searching for hours...


Follow-Up Postings:

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RE: tomato horn worm

Don't know about timing, but I had one in June. Then Saturday, there were three. Fortunately, parasitic wasps had done their thing on two of them.


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RE: tomato horn worm

I am killing about 2-5 a day on just 3 plants for the past 2 weeks. But I live in the big riddled humid hell of NC


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RE: tomato horn worm

I haven't had a single one all year! It may be because I was very diligent last year. I had a bunch of volunteer toms that came up far away from my garden, so I thought that I would experiment.

When I found one with parasitic wasps on it I moved it to the volunteers. Then each one I found afterwards I moved it there also. Within days they would have parasitic wasps on them.

I'm not sure if that helped or not, but it made me feel good!


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RE: tomato horn worm

BT is the best. I don't think I would have had one plant after the Spring because of those little brats. Spray it on the veggies only, and before you see a mad breakout, and you should be fine I think!


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RE: tomato horn worm

  • Posted by jolj 7b/8a (My Page) on
    Tue, Sep 4, 12 at 20:49

You can look for waste to help find the worm & pick it off.
The moth comes out in Spring in S.C., then lays eggs on tomato plants. The worm eats his fill in a few days & falls to the soil below , then digs in. We are blessed with a long growing here & the worm become a moth & lays eggs again in July. So I get two crops of THW, but I only got 6 worms this year. Mostly because I hand picked them, tilled in the fall to kill most of the worms in Pupae form & rotate my crops.
The wasps (2 kinds) help a lot.
Trap plants help also.

Here is a link that might be useful: Kill Tomato Horn Worm


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