I went insane last year with thousands of cucumber beetles - they particularly liked a weed that grew near my garden but also ate my cukes and potatoes. The cukes all got the wilt and died as did the squash. So I went to war. Sprayed the entire area of the garden and 100 feet around the edges with beneficial nematodes that supposedly kill the over wintering cucumber beetles. Also used milky spore to kill the japanese beetles. So far so good this year - only an occasional cucumber beetle - maybe 5 that I've picked off the potatoes. I sprayed the potatoes with soap and pyrethrin. I've covered the Diva Cucumbers with agribon as well. Have seen only a single japanese beetle. It should be time for the second generation of cucumber beetles and we'll see what happens. I'm waiting for the Mexican Bean beetles - They haven't arrived yet but will use microscopic wasps which worked well the past two seasons.

Rather then causing a leaf to discolor Bacterial Wilt causes the plants leaves to just wilt, loose turgidity. Cuting into a stem nearby and seeing this ooze flow out is a good sign of this wilt. Here is a link that might be useful: Bacterial Wilt

We are having cucumber beetle infestation this year :(

so I've determined my buttercup are beyond saving. I had a bad infestation of cucumber beetles but I thought I had them under control, then last week my squash that had been looking amazing and full of baby squash started turning yellow, day by day they seem to get worse, I though maybe fertilizer so I fertilized three days ago. but they have gotten worse. I've decided I need to pull them :(. they are near my zucchini plants which seem to be ok, they are in a different raised bed. My question is, once I pull them do you think I could plant some seeds and see if they grow? its still warm here and we have a couple months of decent weather but I'm not sure if the soil is damaged from the problems these plants had or if there is a way to treat it to prevent it from happening again?