The information on this web site is not presented as recommendations, but rather as research-based knowledge intended to help clientele make informed decisions. Neither the authors, the Center for Applied Horticultural Research, nor University of University of California Cooperative Extension assume liability for pesticide-related information or pesticide use. Pesticide applicators are responsible for reading and following all directions on the pesticide label; the label is the law. Because state and local regulations vary and change over time, it is the responsibility of the applicator to verify the registration status of any pesticide and to insure that the material is cleared for the intended use prior to application. It is unlawful to use any pesticide in any manner other than the registered use. The use of company or commercial product trade names is for the benefit of the reader and does not indicate or imply endorsement, nor does it indicate discrimination against comparable materials that are not mentioned.