According to the Sevin SL® label, no more than two applications per year (once every six months) should be applied. According to the Astro® label, users should apply no more than 2 lb of active ingredient/acre/year. You can always contact the manufacturers of these products for more information. Pesticide labels are legally binding documents, and all pesticides must be applied in compliance with product label directions.
Jeff Schalau, Associate Agent, University of Arizona, and Tom DeGomez, Area Agent and Regional Specialist, University of Arizona
