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Lakewood, Colorado

Well, I definitely have powdery mildew. Now what do I do? Should I remove the affected leaves?

Last Saturday and last night I foliar sprayed the entire plant with Actinovate. How often can I do that? Is there anything else I should do?

Bummer.

8/9/2012 11:18:28 AM

Little-TON - Colorado

BRAVO, get some from me tomorrow.....
or tonight

8/9/2012 12:40:28 PM

Corbin, KY

Not saying I know more than the Wiz but Eagle will stop it.

8/9/2012 2:34:00 PM

Central Minnesota

I agree with Tim. Eagle 20 will put an end to it. It showed up for me on Monday and the Eagle 20 put a stop to it fast.

8/9/2012 3:20:52 PM

Midway, UT

Actinovate works relatively well to help prevent it I've found Erik. Try it next year.

8/9/2012 6:31:37 PM

Ely Mn

whats the dilution rate you use on eagle 20 per gallon of water.im getting it pretty bad also.

8/9/2012 10:00:27 PM

Pa

1/2 teaspoon per gallon for eagle and use a spreader sticker, bonide infuse is also a good systemic and its cheaper. I have not been impressed with actinovate for pm

8/9/2012 10:05:20 PM

Rhode Island

in the future it would be good to know that preventative is best applied before powder mildew is present.
just as we apply other sprays as a preventative-not a cure.
pap

8/10/2012 6:25:52 AM

Muddy Waters

Where can you buy eagle?? I have a little showing up

8/10/2012 6:56:06 AM

Muddy Waters

Thanks Tim I just ordered a bottle on Amazon.How far does a pint go??

8/10/2012 7:17:04 AM

Central Minnesota

A pint goes a long way.

8/10/2012 10:28:30 AM

Mill Bay, British Columbia

pap...Ive used infuse for past several years as a preventative for my plants (spraying before it rears its ugly head) and my buddies who are too cheap to buy it for themselves, come to me to beg an ounce from my stash to control, stop and fix a problem that has shown up.

Works here as a preventative and will stop the progression once it has taken a foot hold.

8/10/2012 12:16:00 PM

Lakewood, Colorado

Thanks for all the info, first year with this problem for me.

I am afraid that I am too late. Pumpkin has not increased in measurements for 2 days. I think the plant has succombed.

I will wait a couple of days before pulling it and planting Sudan grass.

Pumpkin was on pace to be a personal best, but now, compost.

8/10/2012 1:41:10 PM

Little-TON - Colorado

Give it some time Erik...and bring a bottle with you....actually two....one with burbon... and the other empty

\See you Saturday at the BBQ

8/10/2012 4:51:24 PM

Rhode Island

north

theres a reason why some growers are successful and some always seem to have bad luck. prevention is the key as you also mentioned.
most times lucks got nuttin to do with it.
luck to me is severe weather passing you by-ditto-rodents as well.

as a lot of new growers go on in this hobby they will come to realize that if they dont invest in equipment,grower supplies and preventatives?, their chances for success are greatly diminished.

its hard enough to bring competition pumpkins/squash to the scales even with everything working.

pap

pap

8/10/2012 5:11:28 PM

Lakewood, Colorado

I can do that wiz! Are we meeting for breakfast tomorrow?

It did grow some today.

8/10/2012 7:59:30 PM

Lakewood, Colorado

thanks pap. I will definitely go with a preventative program in the future.

8/10/2012 8:01:33 PM

Torrance, Ca.

Been growing reg pumpkins my whole life. First year growing these giants! Every year my pumpkins have pm by now and its only a matter of time before it takes over the whole plant. I thought that was just the way it was.

Tom P. got me started on the infuse and a few other things, been applying every 7 to 10 days over the past month. I have the greenest, fullest leaves I've ever had!!! Not one spot of mildew to speak of!

Tom, Glenn and pap talk about prevention a lot!!!!

I'm amazed at the results!!!

Early August and no pm yet,,, that's a first for me! :)

8/10/2012 8:23:21 PM

Rhode Island

another neat trick --- for more years than i care to remember we used to battle pumpkin stem softness and rot.
ever since we started keeping the pumpkin stems dry, exposed to the sun and coated with sulfer dust? we never again had a problem.it works and works well.thats an example of prevention.
pap

8/11/2012 10:01:39 AM

Seattle, WA

Eagle 20 will work, but for those people who want an organic option (say you want to spray your vegetable garden at the same time, or you have moral issues with using synthetic chemicals):

1. Raw milk: Matt Debacco did a study a little while back. I didn't have as good of success as he did with it, and I found the dried milk look a lot like the PM and was hard to tell apart at a glance.

2. Actinovate: I've had more success using it as a preventative, as mentioned, but because it's just beneficial bacteria you can use it right up to harvest. I've applied it at a rate of 2-3X per week during heavy disease pressures with limited success.

3. Neem Oil: My all-time favorite and what I recommend. I use Ahimsa Neem Oil from www.neemresource.com. Their product is 3-5X higher in azadirachtin, which is the secondary metabolite most effective in treating these disease.
1 t. Neem Oil
½ t. ProTekt (potassium silicate)
1 T. Aloe (surfactant)
Pre-mix the neem and ProTekt in shot glass to emulsify before adding to water/aloe mix in sprayer. Shake well. Use warm water.

8/13/2012 12:11:39 PM

Brooklyn Corner, Nova Scotia

Pap is right on, preventative is the way to go BUT, many, many people claim that treatments like milk, baking soda and neem oil are only preventative measures and won't work after PM is established. I will tell you that PM has made it's presence here on everything from pumpkins to long gourds. I caught it pretty early and with alternative applications of skim milk, baking soda and neem oil, it is under control. The treatments will have to continue until season's end but I didn't have to go nuclear. Just an FYI if you have the time and access to a grocery store you can get a handle on it before it gets out of hand.

8/14/2012 9:42:27 PM