Those aren't the eggs of squash bugs.

Agreed with rock. That is not where they lay their eggs. And is Rotenone approved still?

Dan

Please post images of what you are finding.
Most likely, using rotenone is over-kill.

Rotenone is no longer acceptable to organic gardeners because of the great harm it does whereever it is used.
Squash bugs overwinter as adults, not eggs, so what you are finding is something else.

Here is a link that might be useful: About Squash bugs

Good to know.
I wish I knew what it was.
I thought 1% Rotenone was approved.

Not knowing what something is and applying something to kill it is the antithesis of organic gardening.

Dan

OMRI still lists Rotenone as an approved organic pesticide, but knowledgeable organic gardeners/farmers will not use it because it is a very broad spectrum poison, and is quite persistant in the environment, and is known to be highly poisonous, in small quantities, to aquatic life.
As Dan indicates before applying any control you need to properly identify what it is you are controlling and those potential pests should be causing harm to your plants that you cannot permit. Spreading broad spectrum poisons, even ones acceptable to organic gardeners/farmers, to prevent maybe potential problems is not organic.