Return to the Tomato Pests & Diseases Forum | Post a Follow-Up

Controlling Tomato Pests

Posted by pstock Zone 8 (My Page) on
Wed, Apr 5, 06 at 10:39

I need advice on controlling tomato pests. Last year we had a real stink bug problem, and, tomato worms are always a problem. .(Where do they come from?) Also had something eating holes in the leaves. What can I spray or dust with and how long should I wait before eating picked tomatoes? Thanks

Follow-Up Postings:

RE: Controlling Tomato Pests

sevin dust works good, how long you should wait is labeled on the packaging.if going organic, which i did last year, i used athree in one, which worked okay until it dried up.i know sevin's dust works all the time until it is washed off.they make a sevin dust especially for vegetables i think.

RE: Controlling Tomato Pests

I hate the idea of white dust sitting on my plant leaves all the time. I washed it off after 3 days of looking at what looked like ghost plants to me. Sevin dust makes use of Carbaryl, which is the least toxic chemical (vs. plant derived) insecticide around. There are spray and concentrate versions of it and I think it would be a lot easier to hit the bottoms of the leaves with a sprayer.

Tomato worms can be defeated with BT dust.

RE: Controlling Tomato Pests

Tomato worms can be defeated with BT dust.

BT works only if the tomato worms are small. Once they get large, BT is not effective. Hand picking is the preferred nonchemical control, unless you have acres of fruit. Neem oil seems to have a deterrence, possibly because of the smell.

RE: Controlling Tomato Pests

How long should we wait to eat tomatoes dusted with sevin dust?

RE: Controlling Tomato Pests

Look at the label on the Sevin package -- it will tell you. It varies by crop (don't ask me why) :)

Be careful when using Sevin. It's very toxic to bees and other beneficial insects.

Hornworms come from the sphinx (or hawk) moth. They're large moths that some people mistake for hummingbirds. The moths are kinda cool but boy can those worms do a lot of damage!

Good luck!

RE: Controlling Tomato Pests

  • Posted by farkee 10 B South Fl. (My Page) on
    Fri, Jul 27, 07 at 13:29

As noted Sevin dust is extremely toxic to bees. They can get the dust on their hairs and carry it back to the nest where is kills the whole nest. Dusts and emulsifiable powders are more toxic then other formulations. I personally would NEVER use Sevin dust but that is my choice, yours may be different.
Sevin kills beneficials and then you can experience a worse problem with other pests. (ie spider mites and aphids) It only 'suppresses' stinkbugs so control is limited with this chemical.

I can usually catch by hand (using a plastic baggie) big groups of SB nymphs as they congregate together.

I think I will try an insect vacuum during the next season.

I have also hit them directly with a pyrethrin based spray (as opposed to spraying everything whether I see them or not) but read it only stuns them so once again I would make an effort to retrieve them.

Univ. Of Calif. recommends as a natural control kaolin clay (surround)

(Surround) 30-50 lb 4 0
MODE OF ACTION: Unknown. An inorganic insecticide that protects fruit surface from feeding.
COMMNTS: Kaolin clay does not appear to kill stink bugs directly but is quite effective in protecting the fruit surface from feeding. Begin applications when stink bugs are present and fruit are mature green to pink. Apply to protect the surface of the fruit; canopy penetration is essential. A repeat application may be needed if fruit reaching the susceptible stage are not coated. Kaolin clay application results in a thick, white deposit that coats the foliage and fruit and must be washed from the fruit, limiting its potential for use. "

I already have Surround so I will also try that but I am very bad at anything that needs to be sprayed repeatedly.
I would imagine such a thick coating may also discourage birds and other pests.

Here is a link that might be useful: Excellent stinkbug pics/plus monitoring trap

RE: Controlling Tomato Pests

I have had a lot of luck this year with companion planting. I surrounded my tomatoes and cukes with nasturtiums, basil, oregano, and cilantro. I also planted some hot salsa peppers and bell peppers near them. For some reason, this seems to deter most pests (and I am OVERRUN with Japanese beetles this year...they attack some nasty old sucker-trees and leave my veggies alone...yippee!) I have always preferred hand-picking the larger pests...I've also made some teas from onion, garlic, and hot peppers in the past. Smelled bloody awful! There are commercially available organic sprays out there...I've never tried them, but maybe they'll help. I've heard that "inorganic" gardening can stress plants and create imbalances in the local ecosystem, which makes plants more susceptible to pests. Food for thought, anyway.

 o Post a Follow-Up

Please Note: Only registered members are able to post messages to this forum.

    If you are a member, please log in.

    If you aren't yet a member, join now!

Return to the Tomato Pests & Diseases Forum

Information about Posting

  • You must be logged in to post a message. Once you are logged in, a posting window will appear at the bottom of the messages. If you are not a member, please register for an account.
  • Please review our Rules of Play before posting.
  • Posting is a two-step process. Once you have composed your message, you will be taken to the preview page. You will then have a chance to review your post, make changes and upload photos.
  • After posting your message, you may need to refresh the forum page in order to see it.
  • Before posting copyrighted material, please read about Copyright and Fair Use.
  • We have a strict no-advertising policy!
  • If you would like to practice posting or uploading photos, please visit our Test forum.
  • If you need assistance, please Contact Us and we will be happy to help.

Learn more about in-text links on this page here