Does Neem Oil Have Any Effect On Parsley Worms?

Question

No further information.

Answer 1

Very little. It may have an effect on the eggs, but removal by hand will be necessary. You can try infecting them with parasites, which will kill them off, though.

Here is an article for more information:

https://www.gardeningknowhow.com/edible/herbs/parsley/deterring-parsley-worms.htm