What is going on with my squash plants?

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foolcontrol Cypress, TX(Zone 9a) May 17, 2005

The leaves are turning white. They did have powdery mildew. However, I have sprayed them twice (one week apart) and they are still white.

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foolcontrol Cypress, TX(Zone 9a) May 17, 2005

Another picture

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Farmerdill Augusta, GA(Zone 8a) May 17, 2005

What did you spray them with? Usual fungicides like baking soda, copper sulphate etc will stop the spread of the disease, but will not rescue seriously infested leaves.

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foolcontrol Cypress, TX(Zone 9a) May 18, 2005

I sprayed something from Ortho that is supposed to cure about 120 different types of plant and vegetable diseases. I just got some organic fungiside yesterday. I sprayed it last night and will monitor the results over the next few days.

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Drew_N_Corinn Pleasant Grove, UT(Zone 6b) May 19, 2005

I have not seen any Powdery Mildew yet here but put on Copper soapshield from Gardens Alive as a preventative. Ill let you know if it protects them or not. If the leaves are too bad get rid of them so they dont spread spoors to the healthy ones. Also there are about 30 solutions for this problem Everything from a light spray of milk to some baking soda water to some compost tea. Just do a search here in DG and you will find a dozen remidies.

Drew

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TamaraFaye Fritch, TX(Zone 6b) May 20, 2005

I second that advice... and they also need a kelp feeding to help overcome the stress of fighting the disease.

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foolcontrol Cypress, TX(Zone 9a) May 23, 2005

I have not used kelp before, do I get it at the nursery or an oriental grocery store. I have konbu and nori in the pantry.

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Drew_N_Corinn Pleasant Grove, UT(Zone 6b) May 23, 2005

I use the product from Gardens Alive although you can get it from Lowes... It is a foliar fertilizer.

Drew

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TamaraFaye Fritch, TX(Zone 6b) May 23, 2005

Here is a link to their site, you can get $25 free (you pay shipping). I have heard great testimonials about their natural fungicides...

www.gardensalive.com

I purchased Ormstrom's Kelp Extract (concentrated) from the local greenhouse for about $10 for a pint or so. Started using it in Januar, and not out yet, one capful to a gallon of water, then for foliar spray dilute again 1:3. Lasts a long time, doesn't smell bad.

Tamara

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foolcontrol Cypress, TX(Zone 9a) May 23, 2005

I will pick some up today at the nursery down the street.

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TamaraFaye Fritch, TX(Zone 6b) May 23, 2005

Hope it helps!

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