The better the leaf growth before bulbing starts, the bigger the bulb and the cloves will be. This translates to 'early care pays dividends later'. And also at the main growing stage, give your garlic every advantage to grow more than the disease will damage. Provide a free draining soil by amending it with sand, potting mix, well finished compost, leaf mould, or whatever. Consider a raised bed, or large tub culture.
Liquid manures are also beneficial.
Garlic competes poorly with weeds. Keep them as close to meticulously weeded as is possible. If the weather is dry, mulch them to conserve water. Dry soil when the leaves are developing affects the yield quite badly, so water them well and regularly in dry periods. This shouldn't prevent you from growing garlic, be we do need to accept that we have to put extra effort into keeping the plants in best possible condition when they start growing, and accept that is very wet years we may lose the lot.