Light Brown clumps are Borer "castings"
I cut open the vine and remove the Borers.
Then close it and cover the wound with soil.
I have read to bury the damaged area and water well.
It will root again and heal. We will see. Almost all the plants have the insect.
It has been a good learning experience. I hope we don't lose a lot of squash.
I will get better at predicting their position and use pins not cutting into the plant.
The plants are under much stress.