" Dan" <ddonoghue7@[EMAIL PROTECTED]
> writes:
> My question regards bean flies. The
general
>practice around here is to use Rogor, and that works well enough, but
years
>ago I was told that a weak solution of phenol sprayed at emergence and
each
>week for about four weeks worked even better. I would try it, but I
cannot
>remember what ratio phenol to water to use. I'm thinking on the lines of
a
>teaspoon to a litre. Does anyone use phenol in this way, and, if so, what
>ratio is used. Thanks, Dan
Hi Dan. I believe Rogor has fallen into disuse by most home gardeners
because of its toxicity. I know nothing about the use of phenol on edible
crops. Phenol (carbolic acid) doesn't have a good re****t card, though, and
I see where just one gram of it can be fatal.
Just to clue us in, by "bean flies" do you mean the tiny white flies
(about
2 mm in length) that can be found in plague numbers on the foliage of
carrots,
tomatoes and curcubits?
Apart from sticky yellow strips to attract and hold whitefly, I frequently
hear Comfidor suggested as an effective spray.
I've seen tiny spiders (what we'd call money spiders) catch white flies,
so
insecticides would kill off the spiders, too.
--
John Savage (my news address is not valid for email)
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