Found pollin sacks on my blackberry plant.... HELP

Noticed a small pollin sack on a couple of my plants.
The plants had become stressed after it was very hot and a little over watering was done. i have since takin out theses plants and read of them.

Will this ruin my whole grow or just these plants??
did i catch it in time?

Congrats, now you can make 100's of blackberry seeds which will be worth more than the bud it self.