Peas leaves eaten by something. Do I need insecticide application
I have peas right next to beans. I came back from one week long vacation and found eaten holes in all the pea leaves. There are several varieties, they are all affected while the beans are mostly untouched. I did not see any bugs that might be responsible or they may just be out only at night.
I have attached a picture.
Is this some thing that will go away without affecting the flowering and fruiting or do I need to spray them? What is the best application?
Thanks for the help