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Re: Summer squash problems

Square Foot Gardening List - http://www.flinet.com/~gallus/sqft.html

Try Neem oil (called Rose Defense in the nursery or they have one that
is identical, but called Fruit & Vegetable spray by the same company). 
The Neem oil spray should knock out the mildew or at least keep it from
getting worse. As an added benefit, this spray also controls most "bad"
insects while keeping the good.  Just don't spray it when bees are
active, as if the spray lands on them it will kill them.  Also, mix it
with warm water so it will emulsify properly.  

Another option is an ultrafine horticultural oil spray.  This is also
organic and is supposed to control powdery mildew as well.

I wonder if you should remove the infected leaves and destroy them or if
the spray will kill the mildew and save the leaves.  Does anyone else
know?

kim, so cal, zone 9b

JJLipe@aol.com wrote:
> 
> Square Foot Gardening List - http://www.flinet.com/~gallus/sqft.html
> 
> My yellow and zucchini squash have been a total disaster here in Zone 8, NW
> Louisiana.  Has anyone else had problems?  I planted both transplants and
> seeds and both have had a terrible time with powdery mildew.  I haven't been
> able to find any way to treat this and all plants are slowly dying.  We have
> had an unusually wet spring, could this be the reason?  Thanks for any help.
> 
> Juliana
> Zone 8 NW Louisiana
> 
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