Caterpillars...

There are several species of caterpillars that can eat marijuana. One of the most common is the budworm caterpillar, which is a large, hairy caterpillar that can cause significant damage to marijuana plants. Other species of caterpillars that can eat marijuana include the maple leafworm caterpillar, the apple leafworm caterpillar, and the oak leafworm caterpillar.

Una vez saque de mi planta una oruga. En una pecera puse ramas, hojas y la introduje adentro. A los dias se formó un capullo. Y unos días más se convirtió en mariposa. Fue increíble ver esa metamorfosis

what one it is specificity... very hard to tell and with no pics even harder yet. Many caterpillars eat all types of plants not normally just one but they do have preferences. I have seen some little green inch worms on mine plants in the past. they act weird. I think they get a bit wacky from eating it. maybe its a mild toxin for them? then they fall off or get eaten or start to eat a different plant. Eg. monarch butterflies love milkweed and swallow tails love dill. Can always pick em off and toss em someplace else or feed em to the birds. If you do not like it look up a product called BT or caterpillar killer. its a BT bacterium you mix in water and spray on the plant, this kills the caterpillar once it ingests the bacteria. Its safe and the rain will wash it away. I would not spray it on the flower though so do it just on fan leaves. can use a paint brush if you want. Do this at sunset as full sun and wet leaves = burning. Good Luck!

Can't be sure