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TSWV pyrethrin suggestions

Posted by busy_bee_7tn 7/8TN (My Page) on
Sat, Jun 3, 06 at 12:16

I'm having major problems for the third year in a row. First year, the TSWV hit midseason, last year about a month in and this year it has hit this week just as the plants are setting fruit and about 2' high. This year I moved my tomato bed away from my roses, but there is no place left to move.
What insecticides are safe? Are all the pyrethrin products OK? Would I need to spray everything flowering on my two acre property, or just the veggie beds? My two acres are heavily landscaped and it would be beyond practicle to spray everything every week.
Short of not growing any tomatoes, I'm at a loss.
My only thought outside of you guys is to drive an hour to a farmers market and ask growers there with large farms what they are doing.
Thanks for any advice.

Follow-Up Postings:

RE: TSWV pyrethrin suggestions

Actually, it might not be a bad idea to ask some of the large scale growers in your area what they are doing, or if they even have a problem.

Since you mentioned the roses, I think you probably already know that thrips are a major vector for TSWV, and that it certainly doesn't help to have host plants for the thrips in the same general area as the tomatoes.

As far assessing 'OK' and 'safe', that really has to be your decision as to pyrethrins. I've been known to use pyrethrin on occasion, but I don't use pyrethroids (tends to be more persistent, hence can be more toxic to humans).

Here is a link that might be useful: pyrethrins and pyrethroids

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