it is a worm i forget the name, they live in the weed and lay eggs, it happens when your in out doors, pest. your next grow you want to get some nem oil and spray those leaves in veg. duing flower you will not be able to spray. there are also pesticide you can use to spray around the plants base start spraying right where the leaves stop, so the width of the plant you want to spray the ground starting right under where the leaves stop, start spraying and make a circle around the plant, make sense?? also there are other plants you should be planting so the bugs stay away, just do a google search on the types of plants you need to plant,
i remember 20 years or so ago there was some weed that was going around that had worms in it, the weed was dried ect, the people who had smoked the weed had said they also smoked the dried worms and swore they got higher, now i wouldnt recommend smoking any worms, but you can finish the grow and hang and dry but you should make hash out of all of the grow, real easy, you can also use dry ice and a hash bag or two, just put weed in top bag, add dry ice and shake, you will still be able to get something from it and you wont be smoking or picking out worms.