Powdery mildew?

[OaklandCityFarmer]

I tried the baking soda and soap. My plants look like they are almost dead.

You might want to try spraying with a 10% solution of milk. (1 part milk, 9 parts water) twice weekly for a few weeks. This can help but if the plants far along you might want to pull it and hope it doesn't spread. Are all of your plants infected?

 

[chickenboy8]

All my zucchini and squash and a noticed some starting on the cucumbers.

 

[OaklandCityFarmer]

All my zucchini and squash and a noticed some starting on the cucumbers.

Spray them as soon as you can with the milk solution.

 

[whatnow?]

I got a little relief on my "pumpkins" last year using the milk thing. Not enough to offset the feeling like I was crazy for spraying $4/gallon milk on what turned out to be the garbage child of a hybrid and not the pumpkins I thought I remembered planting. :|

I think I would have been more productive focusing on how to isolate the outbreak. This year it is MUCH more widespread. Regret...