Help!! What's Killing My Garden?

[Jlybns]

I have noticed a white substance on my zucchini and cucumber leaves. I have just taken a closer look and it's pretty bad. Should I just pull up these zucchini plants? I believe this is the culprit, is it a squash bug or is it two?

This is what one of my zucchini plants have on it and now white stuff is on my cucumbers. OH LOOK something is making spots on my tomatoes!!!

 

[Chuck]

I have noticed a white substance on my zucchini and cucumber leaves. I have just taken a closer look and it's pretty bad. Should I just pull up these zucchini plants? I believe this is the culprit, is it a squash bug or is it two? View attachment 25006 View attachment 25003 View attachment 25004 View attachment 25005 View attachment 25006 View attachment 25007 View attachment 25008 View attachment 25009 This is what one of my zucchini plants have on it and now white stuff is on my cucumbers. OH LOOK something is making spots on my tomatoes!!!

You have at least 2 things and maybe 3 things happening. The squash plants are infected with powdery mildew and the tomatoes and squash fruits are being bitten by stink/squash bugs. Also it might be possible that you have the beginning of early blight on your tomato plants.