Western Plant Health Association is a nonprofit trade organization that represents the interests of fertilizer and crop protection manufacturers, biotechnology providers, distributors and retailers in California, Arizona and Hawaii, according to President Renee Pinel. Trade members comprise more than 90 percent of all the companies marketing commercial fertilizers, soil amendments, agricultural minerals and crop protection products in these three states. The association operates two Web sites: www.healthyplants.org, and www.calfertilizer.org. The association is one of the largest agricultural trade associations on the West Coast of the United States.