Eggs are a single flat oval, dull-reddish brown in color, and very small (1/25 inch) in diameter. Use your magnifying glass. ;)

According to most of the research sites they lay eggs on shady part of stems near the base, but a few can also be found on leafstalks or on the undersides of leaves. New mother's are sloppy egg-layers. ;)

Eggs hatch in 9 to 14 days. Larvae enter the stem at the plant base within a few hours after hatching from the eggs.

I can't find a picture either as most sites seem to use the Ohio State info/pics and they are just drawings.

Good luck.

Dave

Here is a link that might be useful: SVB

I can spot them pretty easily. A single deep brown dot on the pale green leaves and stems. The dark green of the base of the zucchini is tougher. And there are little spots among the flower stems and such that are tricky.

My control methods:
1. catch and kill moths if I can (a butterfly net helps, but they're quick)
2. check for eggs every few days (check for squash bug clusters at the same time.
3. dust the vines once a week or so with rotenone, which (hopefully) will kill any larvae that hatch from eggs I missed. I don't like using rotenone that much, so I use a paintbrush to dust the vines. A paintbrush helps you get the powder just where you want it, without it going everwhere.
4. Look daily for signs of borer activity (a moist sawdust-like stuff coming out of a hole near the base of the plant), so I have a chance to cut open the vine and kill the borer before it does too much damage.

It's a pain, but I like squash.

Thanks Dave and Iacche for your help. I killed a little tiny worm/whatever they are called just starting to bore into the stem today.

Do you think diatomaceous earth would work? The paint brush idea was a great one.

Michelle