These resources are brought to you by the Cooperative Extension System and your Local Institution

Gardens, Lawns & Landscapes Home

What are some suggestions for controlling garden slugs in Colorado?

Last Updated: October 20, 2009

View as web page


Although Colorado’s dry climate typically discourages slugs, when there is plentiful rain and snowfall coupled with a fairly mild winter, these slimy mollusks often appear in droves. Many spring vegetables, pansies, and bulbs are attractive target plants. To keep slugs under control, consider the following tips:
--Decrease humidity in the garden by using drip irrigation and watering in the morning instead of the evening to give plants (and slugs) a chance to dry out during the day.
--Trap and destroy slugs using either a tray of fermented liquid (beer or sugar-water with yeast), or moistened newspaper placed on the soil’s surface.
--Repel slugs using diatomaceous earth, copper foil, copper sulfate, or wood ashes as a barrier around raised beds and greenhouses, or around individual plants.
--Keep mulches (which act as a shelter for slugs) away from the base of tender seedlings or newly planted annuals.
--Provide slug predators such as ants, birds, snakes, toads, and turtles with an attractive habitat and they will naturally take care of the slugs. ***

Browse related Faqs by tag: horticulture, colorado, slugs


Have a specific question? Try asking one of our Experts

Unlike most other resources on the web, we have experts from Universities around the country ready to answer your questions.


View this page: