found these eating my onion leaves

[Messi1986]

Hi, I have found lots of these little fellas eating my onion leaves. Are me onions no good now or can i salvage them? Many thanks

[rustylady]

If you can get rid of all the caterpillars then the onions may recover.

[Messi1986]

If you can get rid of all the caterpillars then the onions may recover.

Sounds like hard work haha. Ill give it a go thanks a lot