Another possibility is employing children to collect snails and slugs. There are two other methods of killing snails and slugs after they have been collected, but both are quite macabre. One method simply involves stepping on the critters. The other method involves scattering snails and slugs on a driveway and driving back and forth over them with a truck or car. Although this is not the most environmentally sound method, it seems to be psychologically satisfying to most individuals.
Habitat modification is one of the most effective strategies in reducing snail and slug populations.
This method involves eliminating hiding places such as mulches, weeds, old vegetation, and debris. Proper watering practices can also minimize their populations. Avoid watering late in the day as this creates moist conditions conducive to snail and slug activity. Water plants early in the morning. Also, using drip irrigation systems, with water directed toward individual plants, may lead to fewer snails and slugs.