Q.should I feed my berry bushes now?
My gooseberries and currants had a severe sawfly infestation that stripped just about every leaf. Fruit had already set and was too sour to be eaten. Bushes are alive and have started to sprout. Have pruned old wood and non-sprouting twigs. Should I feed now to encourage new growth?
I would treat with Neem Oil for the infestation.
Certainly trim away the damaged material.
Do not try to fertilize this time of summer.
Here are links that will help with growing and care requirements.