Hi Dar V,
(And hello everyone else i'm new!)
Here is a webpage with some info on:
http://extoxnet.orst.edu/pips/mancozeb.htm
It has data about the substances breakdown in soil & in rain about 1/2 way down.
HTH,
Dave
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** "Trust me i'm a chemist it'll work - here you light it" **
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"Dar V" > wrote in message >...
> You're probably right. We've had tons of rain too, perfect for tomato plant
> fungus. Even if it sits on the plants for a couple of hours - it should be
> dry, shouldn't it? Different fungicides may be different though. Sometimes
> I've had to get stuff on, no matter how rotten the timing, so I wouldn't
> wait too long. Have you checked Jack & Lum's sites for any info on
> black-rot? Or your county agricultural agent? Good-luck.
> Darlene
>
> "Ken Anderson" > wrote in message
> ...
> > > While I don't know much about Mancozeb, anytime I have used fungicides
> in my
> > > garden, I've always thought it is better to make sure the fungicide has
> time
> > > to dry on the plant. If you put it on and then it rains an hour later,
> > > well, I don't know how effective it would be. I like to let the stuff
> dry
> > > and let the plant soak up the stuff, so it has the chance to help the
> plant.
> > > With the fungicides I've used, they usually call for repeated
> applications.
> > > Hopefully, someone will recognize and have more specific info for you.
> > > Good-luck.
> > > Darlene
> > >
> > >
> > Thanks Darlene. It looks like the board won't cough up a definitive
> answer.
> > I'm using your approach, but I'm getting the willies from all the rain,
> heat,
> > and humidity lately. I think that's perfect weather for black-rot.
> > Ken
> >
> >