Cucumber and Zucchini Help

Bennett081713July 13, 2014

My cucumber and (recently) my zucchini plants have starting going downhill. They were doing so good, but have been turning yellow for the past month or so. I live in the orlando area. I know I got started planting a little bit late (My husband and I recently moved here and I got them in the ground as quickly as I could). Currently we are in hurricaine season, so we get a lot of rain. I have been fertilizing them about every 4 weeks. I also tried an epsom salt/magnesium bath that was suggested.

I did notice recently with the cucumbers that one vine is latching onto my green beans and growing upwards. That stalk seems to be doing great... maybe they need to be up, off the ground?

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Cucumber and zucchini plants tend to get diseased after a few weeks of production, no matter what you do. Both are susceptible to mildew, cucumbers will get bacterial wilt from cucumber beetles, zucchini can get attacked by vine borers. You can check the base of your zucchini plants for holes and an orange frass. Dig inside and you'll find the larvae.

I succession plant every 2-3 weeks and when the plants look bad i tear them out. You may want to try a fungicide on your plants, especially in the type of wet weather you're dealing with. Liquid copper or Serenade, or some have had luck with homemade fungicides made from baking soda or milk. It won't cure the disease, but will help protect any new growth.

If it's bacterial wilt, there's no cure for that. Infected vines will die. It's very common with cucumbers; one bite from a cucumber beetle is all it takes.

    Bookmark   July 14, 2014 at 8:23AM
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conchitaFL(10 Hutchinson Island)

In FL at this time of year there's also the dreaded pickleworm in addition to all the other problems. This just isn't the time of year for most of us to try these plants because of all the disease/insect problems, also production slows way down when the heat and humidity really kick in.

If you haven't seen it, the U of F's Agricultural department has an excellent guide to vegetable gardening in FL, including when best to plant:

Here is a link that might be useful: IFAS planting guide

    Bookmark   July 14, 2014 at 10:16AM
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