slug control products
what are the pros and cons of using iron phosphate, sodium ferric or metaldehyde for slug/snail control?
Clackamas County Oregon
Metaldehyde has been used by gardeners and the industry for many years but is the potentially most toxic of the three active ingredients you mentioned. Iron phosphate came to the market next, and has been shown by research at Oregon State University to be as effective as is metaldehyde with the benefit of reduced toxicity to people and pets. Ferric sodium is the most recent addition to slug management products, one which has been shown to act more rapidly than iron phosphate. “New Snail and Slug Active Ingredient” (May 2013) has the full details. (http://ucanr.edu/blogs/blogcore/postdetail.cfm?postnum=13838 ) “Snails and slugs” discusses the complete array of management options for home gardeners with the caution that decollate snails are illegal in Oregon. (http://www.ipm.ucdavis.edu/PMG/PESTNOTES/pn7427.html )
thanks so much. this info is very helpful. diane