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West Michigan---Hasekg39@gmail.com

I found a few dark orange semi circles (less than the size of a dime) on my pumpkin about 2 weeks ago and since then the amount has exploded to half my pumpkin being infected but the circles are not bumps and they don't make a soft spot in the pumpkin. Just in the last 2 or 3 days I have not noticed any more growing.

I guess My question is: Does any one know what this is and can it hurt my pumpkin. Any thoughts would be appreciated

http://i446.photobucket.com/albums/qq188/Higgins24/4E81690A-18CF-4C03-8298-1B3C842E3E4A-6281-000006B06ABCF772.jpg

8/22/2012 5:22:41 PM

Germany

Do you keep your pumpkin covered (tent, tarp, blanket or whatsoever)? If covered, we can exclude hail damage (BTW, the "impact craters" don´t look as homogeneously across the surface as I would expect in case of hail damage) and sunburn (maybe if there are a few drops of water on the pumpkin when sun is shining on it). No idea if there are any insects which leave behind such patterns, haven´t seen such insects here in Germany.

8/22/2012 5:30:30 PM

Menomonie, WI (mail@gr8pumpkin.net)

Ahh that is a disease...Anthracnose..Sorry your pumpkin is on its way down

http://vegetablemdonline.ppath.cornell.edu/DiagnosticKeys/CucKey.html

New Growers Book Mark the link above

8/22/2012 8:04:28 PM

West Michigan---Hasekg39@gmail.com

yeah I thought it might be that but I'm kinda wondering why it stopped and why the circles are not turning black but I'm sure I will see it getting worse if that's the case

It's not a real big one so I'm not too worried but none the less it sucks

Thanks for the input

8/22/2012 9:10:07 PM

Williamsburg,KY

I would not save seeds from this pumpkin. Anthracnose can be carried in the seed, I think. Am I right Shannon?

8/23/2012 8:11:33 AM

West Michigan---Hasekg39@gmail.com

Can it be spread to the plant next to it ??? Would hate to see my big one get it

8/23/2012 11:05:30 AM

NILES , CALIF

I to have a pumpkin that started out with some little
brown spots, now they are all over.
Is there a fungucide that prevents this?
I have used rootshield and eagle 20; some agri foss;
on my pumpkins?

8/23/2012 11:16:57 AM

Menomonie, WI (mail@gr8pumpkin.net)

The anthracnose fungus overwinters on diseased residue from the previous vine crop. The pathogen may also be carried on cucurbit seed. In the spring under wet conditions the fungus releases airborne spores (conidia) that infect vines and foliage. The fungus depends on wetness and fairly high temperatures, 75°F (24°C) being considered optimum. Conidia do not germinate below 40°F (4.4°C) or above 86°F (30°C) or if they are not supplied with a film of moisture. In addition, the pathogen must have water to free the conidia from their sticky covering in the fruiting body. The fruiting body is slightly saucer-shaped and lined with microscopic stalks. The microscopic stalks produce the conidia, which amass in sticky, flesh-colored tendrils. As long as the tendrils remain dry, the conidia cannot escape, but a heavy dew may dissolve the mucilaginous covering and then rain drops splash them several feet. Anthracnose usually becomes established in mid-season after the plant canopy has developed.

8/23/2012 1:18:25 PM

Menomonie, WI (mail@gr8pumpkin.net)

http://www.smartgardener.com/plants/1057-pumpkin-atlantic-giant-pumpkin/guide/diseases

8/23/2012 1:21:31 PM

West Michigan---Hasekg39@gmail.com

It got really bad so I picked it on the 24th: weight 360lbs. I didn't keep any seeds

8/29/2012 11:14:12 PM