How do I get rid of little green caterpillars

Question

I have a gooseberry bush and it’s been stripped bare of leaves by little green caterpillars,I am worried that they are going to start on my young fruit trees.how do I get rid of them please

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Answer 1

Sawfly larvae cause severe damage to bushes by devouring the leaves. Often complete defoliation will occur.
Prune bushes so that they have an open structure which allows good airflow. Sawfly prefer to lay their eggs into dense bushes. Bushes can also be covered with a horticultural fleece as they are self-pollinating.
Check bushes regularly for leaf damage and remove any larvae that can be found. Where the infestations are severe, as a last resort organic Pyrethrum-based products are available from garden suppliers. These will need to be applied following the label instructions.
During the winter months, dig around the base of bushes to expose the overwintering pupae to insectivorous birds and other predators.