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Santa Cruz, CA

We're not sure what is happening with our 689 Sandercock. Please check out our diary and let us know. Gummy Stem Blight?
There is no brown ooze on vines and no tan powder under the slightly affected leaves. Thanks!
http://www.bigpumpkins.com/Diary/DiaryViewOne.asp?eid=52888

7/21/2006 3:11:19 PM

Nashville, TN

That's EXACTLY what was happening to one of my GPs early on... Some growers said 'heat stress' (now that I have a TON of heat stressed leaves - I KNOW that it wasn't the cause)

I'm not sure what it is - I've been using Fungicides & pesticides since the start this season....

This is what I ended up doing: I removed EVERY SINGLE leaf that had even a smiggin of this problem - and burned them. Did this for about 10 days. Poor plant looked bald! But it recovered and sprouted a whole new leaf canopy within two weeks! Now it's got the fastest-growing pumpkin in the patch.

Watch your plants next to it... I noticed two others in the same row would get this same symptom on their new growth (the first plant had it ONLY on mature growth!)... Did the same 'surgical' technique on them.... They've all recovered as well...

7/21/2006 6:07:39 PM

Waquoit Mass

the fact that the plant didnt do well from the beginning would tell me that its a nutrient problem, followed by a sress and disease problem.first i would soil test start there hamr

7/21/2006 8:07:25 PM

SF Bay Area, California

It looks to me like some kind of root pathogen. There are several that infect the roots and then travel to the leaf stems and interfer with fluid transfer, slowing killing them. If this is what it is, I don't believe there is any way to treat it with fungicides.

I would pull this plant and remove all debris from the garden.

7/21/2006 8:25:29 PM