Such cosmetic damage can render strawberries unacceptable for human consumption. Most pickers will not pick or will quickly discard any damaged berries or berries with slugs on them. Monitoring Signs of a slug infestation include split and shredded leaves and slime trails. When populations are high, the slugs can usually be found resting or hiding under loose soils, plant debris, or straw. Economic Thresholds Careful examination of an area will give a good estimate of slug density.
Most growers take action if any slugs are observed.
Comments Slug problems can be minimized through good crop management practices. Avoid over-irrigation of the crops. Avoid planting in areas that are perennially wet spots. Use cultivated soil borders around the margins of strawberry fields to minimize the inward movement of slugs. Crop rotation does not seem to be a practical solution to slug management because most species of slugs feed on a wide variety of plants.