Rake all fallen leaves and compost them. Put out earwig bait near artichokes. Buy ladybugs to naturally control garden insects. Trim rooted branches from established rosemary and other herbs and plant as a hedge bordering the herb garden. Cut hedges to shape.
Control is essential- pick at night, use bait or try organic remedies.
Pull slugs and snails off vegetable and flowering plants- best done at night. Re seed bad spots. Establish new lawn, either via sod or seed. Water deeply and fertilize heavily. Aerate compacted areas.