In addition, MSG is used as a component in agriculture can help to increase the growth of plants, fertilizer and pesticide product called AuxiGro WP Metabolic Primer ( AuxiGro ). MSG used on crops grown in California. In May, 1999, spraying MSG on wine grapes ( calling the spray a fertilizer ) which has been approved by the California Department of Food and Agriculture ( CDFA ). In April, 2000, and again in July, 2001, spraying MSG on wine grapes ( calling it a fungicide ) which has been approved by the California Department of Pesticide Regulation ( CDPR ). The CDPR would only turn down a product if do not appeared and AuxiGro didn't ineffective. After you know about MSG history you may want to know about how MSG is produce. The next chapter will talk about it