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Decatur, IL

I've had major problems with fungal diseases (Phytophthora for one) over the years that have prevented me from growing AGs for about 10 years. Last year I tried again and was able to at least set some fruit but eventually my plants and fruit succumbed to vine and stem rot. I was told by a grower with similar experiences that I might have "gummy stem blight" and "black rot". This year I have a number of leaves on my 845 Bobier plant that have lesions similar to ones that I have had in the past (Please check out my most recent photos in my grower's diary dated June 4 when they are posted. So far I have applied a soil drench of Subdue Maxx and Clearys and foliar applied Aliette. I was going to spray with Quadris toward the end of the month, but maybe I should use it sooner. I'd greatly appreciate any opinions and advice you can give me. Charlie

6/4/2005 2:20:22 PM

Canada

Your not the only one, I seem to be haveing the same problem with mine :-(

Dave

6/4/2005 9:30:40 PM

Rhode Island

cm
i suggest sending out a leaf or two for a tissue test right away (before your seasons in the crapper)

6/4/2005 10:29:18 PM

Garden State Pumpkins

Tissue samples will give you the best idea of what your fighting. Contact your local agent. Fresh samples are the best don't allow them to decay to much..drive em in there!
Pathogens are usually insidious little creatures that can stay for many years in fallow soil. You said you haven't grown pumpkins on site for many years but other vining crops will allow the pathogen to stay alive..basamid might be your next step if you can't afford to let the area go fallow for 4 years..Good Luck!

6/5/2005 6:31:55 AM

[email protected]

All good information. Call your nearest cooperative extensions plant pathology dept. Adsk who their squash/pumpkin expert is & speak with this person. Clip the sample & make the trip only after confirming the person will be there to see you.

It's early yet and what you have applied should be effective against the problems you have previously experienced. I hope what you're seeing isn't spray injury.

6/5/2005 7:10:58 AM

Roselle, IL [email protected]

Start using the Quadris I sent you. Could just be leaf burn. I worked with M. Babadoost phone 217-333-1523. babadoost/cropsci.uiuc.edu

6/5/2005 7:42:17 AM

Canada

Monday Mourning I will be dropping an soil sample along with 2 leafs off my 839 hunt ( most effected plant) as I want to know whats going on myself with my own plants

also these tests will be completed at A&L Labs in London Ontario.

Dave

6/5/2005 10:25:20 PM

[email protected]

A&L does nutrient testing. A nutrient analysis is always nice. But it isn't going to tell us a thing about Pytophthora. Are you sure they test for vascular fungal diseases too?

As a rule when a disease of this nature is being tested for, the grower needs to walk the sample into a Pathology Lab for immediate work-up. Mailing or shipping the sample results in a sloppy untestable mess upon arrival at the lab.

Call the lab.

6/6/2005 5:11:55 AM

Cornwall UK.(50N 5W)300ft.

CM,thats exactly what my plants look like a few days after getting sunburn.

6/6/2005 12:51:46 PM