I suffered with grubs in my pea pods. next year I want to eradicate this problem when do I treat them & with what? ???
Best way is to net them to keep off the pea moth.
I grew my peas on a tee pee and covered the entire teepea with £shop fleece.
I had little or no pea moth damage. You can also use enviromesh to do this or plant early peas. With an early pea there is less risk of moth damage because the peas flower before the moth begins its cycle.
Similarly later sowings can avoid most of the moths... :-X