SWITCH® 62.5WG | An anti-botrytis pre-pack mixture (water-dispersible granules) fungicide made by Syngenta. It is a systemic and contact spray that combines two active ingredients into one treatment – cyprodinil, the systemic component, and fludioxonil, the contact component. It attacks the pathogen at four different stages in the pathogen life-cycle, providing long-lasting control (a lasting residual control of 7 to 10 days).
Switch fungicide controls plant disease by protecting the leaves and fruit both by working on the plant surface and in the plant. University trials (University of California at Riverside in 2003 and 2004) demonstrated that the superior disease control provided by Switch on strawberries extended their postharvest shelf life. Switch is described by Syngenta as a low-use rate product for control of gray mold (Botrytis) and other important diseases in vegetable crops. According to Viti (hors série Dec 2007 p10) Syngenta’s Agro’s anti-botrytis ‘Switch’ spray can be used 21 days before harvest, down from 60. It can be used once at doses of 1.0-1.2 kg/ha per hectare per year.