Very damp conditions

mrsg47(7)July 23, 2013

Our miserable, humid, rainy conditions in Newport, RI this summer has for the first time created powdery mildew on my Concords grapes. Ok to use Monterey Fungi fighter on them now? thanks, Mrs. G

Thank you for reporting this comment. Undo
ltilton

iirc Immunox is considered the fungicide of choice for PM on grapes.

    Bookmark   July 23, 2013 at 9:18PM
Thank you for reporting this comment. Undo
Scott F Smith(6B/7A MD)

I would first check to make sure it is not downy mildew. Powdery tends to like drier weather, downy likes it wet. If you have powdery you are lucky, many things will work on it. I found summer oil to be highly effective. Downy is much harder to deal with; I used copper for downy on my organic grapes. There are also synthetics for it, mancozeb if memory serves.

Scott

    Bookmark   July 23, 2013 at 10:18PM
Thank you for reporting this comment. Undo
mrsg47(7)

Will check on the difference of downy/vs powdery mildew. Thanks Scott and Itilton. Mrs. G

    Bookmark   July 23, 2013 at 11:01PM
Thank you for reporting this comment. Undo
mrsg47(7)

what does iirc mean?

    Bookmark   July 24, 2013 at 8:46AM
Thank you for reporting this comment. Undo
bamboo_rabbit(9A Inverness FL)

iirc= If I recall correctly

    Bookmark   July 24, 2013 at 8:59AM
Thank you for reporting this comment. Undo
mrsg47(7)

Thanks, never have been into abrevs.

    Bookmark   July 24, 2013 at 7:09PM
Thank you for reporting this comment. Undo
mrsg47(7)

Scott thanks for telling me there are two types of powdery mildew. (downy being the other). What I have are only two leaves with powdery mildew and they were not totally covered by the white powder. I cut them off and will spray with immunox after it stops raining. Raining and more rain! Two more days of the horrible rain is predicted., but, the temps dropped into the high 60's today. A twenty degree drop over night. Mrs. G ps. weather has been horrible this summer so far.

    Bookmark   July 25, 2013 at 5:27PM
Sign Up to comment
More Discussions
Need late flowering pears?
Seems all of my pears are early flowering which is...
Konrad..just outside of Edmoton Alberta
Is San Diego just behind with the flowering??
Any San Diegans or southern Californians here? I see...
brownmola
Looks like no pears this year.
We have gotten a lot of chill hours this year for the...
insteng
What is wrong with my Blueberry plant?
Hi, My blueberry (rabbiteye) plant seems to have developed...
bopwinter
Wanted: Black Ice plum --) swap
Edit This post was edited by Gardening_Maestro on Tue,...
Gardening_Maestro
People viewed this after searching for:
© 2015 Houzz Inc. Houzz® The new way to design your home™