|Powdery Mildew on Zucchini|
I have cut off the most infected leaves in the hopes that the disease will not spread as quickly to the entire plant and did a spray application of a few drops of Neem oil and 7th generation dish soap (to help keep the Neem on the leaves) in water.
|Applying Neem on Zucchini infected with PM|
After doing some research on the web I found that Powdery Mildew is a fungi that is spread by the wind, insects, and splashing water. This disease affects many plants, however a different strain of fungus attacks different plant families. One thing I read about was a water / baking soda mixture that could be sprayed on the leaves, which is more of a preventative measure than an eradicant. Something I should keep in mind for next year. As I was wondering about throwing the infected leaves into my compost, I did some preliminary research and found mixed opinions on the safety of using the composted leaves. I also read that the mildew doesn't always kill the plant, but can severely limit production.
Reading up on Bacterial Wilt, I found that it is spread by the striped or spotted cucumber beetle. A pest that we definitely found a lot of this year. This virus infects plants from the curcurbit family (cucumbers, melons, squash, pumpkins and gourds) and causes a sticky, oozy substance in the plants which clog the plant's circulatory system so the vines don't receive the water they need. Once infected, there is not much hope for the plant.
|Bacterial Wilt on Cucumber Plant|