From

Location

Message

Date Posted

San Jose California

Season ended up with pretty severe PM---obviously spores are in now in my soil along with Daconil---do I need to do
anything to remedy my soil for this?

9/26/2011 2:44:43 PM

Colorado

All you can do is remove the plants,most of the powdery mildew comes from spores in the air that literally circulate around the globe

9/26/2011 6:42:21 PM

South Hero, VT

Powdery mildew can be spread from such plants as roses and lilacs. Make sure such(and other) plants are not downwind of your patch.

Start treatment for PM well before conditions are optimum for contamination, that's mid-July here in Vermont.

Once the PM starts, you're !@#$ed, so use contact and systemic fungicides. Generics are cheaper and work just fine.

See Matt Debacco's super treatise on leaf problems--http://www.bigpumpkins.com/Attachments/Leaf_Problems_Summer_2011.pdf

9/26/2011 7:10:55 PM

Rhode Island

if you start your powdery mildew sprays early in the season? ( from early august on out weekly ) it should never be a problem.
if you wait for it to show up before reacting? its already to late.

9/28/2011 5:11:48 AM

Www.extremepumpkinstore.com

I agree with pap, you have to be proactive, we start spraying lightly in early to mid June and continue throughout the season.
We haven't had PM for years.

9/28/2011 6:57:00 AM

San Jose California

Thanks guys--what should I use---I see Eagle 20 mentioned
often---give me your recommendations please!

9/28/2011 2:49:24 PM

Www.extremepumpkinstore.com

You need to rotate fungicides, I would absolutely use eagle, and if you can get others such as quadris or something lighter like greencure, daconil, fungonil, or others, these are effective as well.

9/28/2011 7:13:44 PM

Owensboro, Ky.

Curious, lots of roses & lilacs in my yard...should I be spraying those w/ a rotation of fungices also...ie...will this reduce the PM prblms? Peace, Wayne

9/28/2011 11:25:24 PM

San Jose California

Any recommendations on what to spray with for the PM?

9/29/2011 2:42:19 PM

San Jose California

Sorry, just saw Tom's reply

9/29/2011 2:42:59 PM

Kentucky, U.S.A.

Curiousity killed the cat! Carefull Wayne!!!!! I'd always spray a little on Becky's lone rose, just to check the sprayer setting!!! It's still blooming! BSD, David

10/12/2011 9:47:58 PM