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Squash Plants

Q.Squash Plants Turning Yellow And Pale

Zone 76262 | Anonymous added on June 25, 2021 | Answered

This is my first year planting squash in containers. They started out big, green and beautiful and a few of them started to produce really nice big squash and zucchini. Then all of the sudden they started looking stressed. Production has slowed to a crawl and the ones that are setting fruit are not growing big and bountiful. I’ve tested the soil and Nitrogen, Potassium and Phosphorus all are ok. I’ve added Salt for magnesium but nothing seems to be improving. No bugs or pests of any kind I’m pretty sure it’s not mildew. I’m wondering how about iron deficiency but it’s really stumping me. Any suggestions?

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Certified GKH Gardening Expert
Answered on July 8, 2021

Unfortunately, the photos don't show the soil. It could be an infection in the soil from remaining too wet without time to dry out, thoroughly, down to about 3 inches or so.

But, even more likely, it looks like a spider mite infestation has caused disease!

Here are some articles that will help:



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