All Squash Leaves Being Destroyed

Question

Had 2 rows in 2 different gardens about 20 feet apart. 1st row attacked was 9 -10 weeks old producing alot. Started showing signs of leaves being skeletalized. Used sevin dust liquid spray. Did not stop. After 4 days pulled up 3 affected plants & burned. 2 days after the other 4 started & I pulled them also. Fearing spread to other garden of 7 plants, sprayed them with neem oil. Yesterday 09/14/2020 1 plant has started with signs and this morning the pics illustrate what is happening

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Answer 1

This is, often, due to insect damage. When using insect sprays, it will be necessary to reapply often, but this doesn't always work. This article will help:

https://www.gardeningknowhow.com/plant-problems/pests/insects/skeletonized-plant-leaves.htm

However, the best method of control will be using a bacteria that is meant for controlling insects. This article will help:

https://www.gardeningknowhow.com/plant-problems/pests/pesticides/using-bacillus-thuringiensis.htm