Crispy buds

Hey all I have 2 girls about 4 weeks into flower, I noticed a couple parts of the buds are dry and cripsy. Anybody know what could cause this? Could it be bud rott?

Caterpillars? Worms? Pics will help.

I dug around looking for caterpillars but I couldn't find any, or any signs of their poop. I sprayed a couple rounds of safer catarpillar killer on them recently too. I'm thinking maybe when I sprayed they developed some bud rot.

I wish I could post some pics but I cannot figure out to do so.

If you have pics on your computer, you can click the 4th box from the right (insert image) in typing area. Click select files.

check this thread it will help you with the pics:https://www.rollitup.org/support/650493-faq-check-here-first-updated.html

Here a pic

Heres the 2 biggest of the bunch

Sorry if that pic isn't up to par, I took the pic on my cell phone

i cant tell