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Windsor, Ontario, Canada

What kind of rain would you need to warrant a "re-spray"? If you get a light rain and you can still see some residual, is it likely that you dont need to spray again. Also, assuming a spray went on leaf stalks and vines, which by nature of their location is more protected, I would imagine that they could take a little more rain.

Then the residual obviously is important, as well as the type of action (systemic or contact).

I would imagine that bifenthrin (2-3 week residual) on vines and stalks, could take a bit a rain with very little loss of effectiveness.

Any thoughts on this?

I sit in front of my pc all day, so have lots of time to post on this forum as you can see. Hopefully I am not posting too much.

6/19/2007 9:55:14 AM

Georgia

Well I know anytime I need some rain at the house I just get out my sprayers and there it is..Ive heard most sprays like Pyola or neem oil need to be resprayed after a good down poor. But sprays like Ortho Max and such are fine.

6/19/2007 10:15:26 AM

Windsor, Ontario, Canada

Tremor, I got 1" of rain today, think I should spray bifen again at a lower dose to recover what might have been washed off. I can still see some light white residue from the daconil. The bifen had time to dry.

Thanks

6/19/2007 9:11:07 PM

Ctpumpkin@optonline.net

If it dired before the rain then you're fine. No need to respray. Sunlight is the major cause of degradation - not rain.

A good portion of the "white" in fungicides is inert so it should also be OK if it dried before the rain.

6/19/2007 11:53:32 PM

Windsor, Ontario, Canada

Thanks a bunch. I am overprotective of the plants. Kinda like my kids.

6/20/2007 12:05:26 AM

Ctpumpkin@optonline.net

Don't kill them with kindness. LOL

6/20/2007 9:44:19 AM