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Instructions to County Agricultural Commissioners on Rice <br />Pesticide Permit Issuance, Continued <br />General Information <br />New A new Thiobencarb product — League® MVP Herbicide, EPA Reg. No. <br />Thiobencarb 59639 -189 -AA, a granular formulation — is registered for use on rice for the <br />product— 2014 rice pesticide use season. Its active ingredients are 10% Thiobencarb <br />League® MVP and 0.43% Imazosulfuron. Please note that the new product has the same <br />water holding period as Bolero UltraMax — 30 days — and the Thiobencarb <br />recommended permit conditions apply to the new product. <br />Malathion CVRWQCB has approved a water management practice for malathion <br />water applied to rice that will help meet water quality performance goals for <br />management malathion in surface water. Malathion is currently not a restricted material <br />recommenda- and not subject to permit conditions. However, it is important that growers <br />tions comply with the following water management practice: <br />• All water from fields treated with pesticides containing malathion <br />should be retained on the site of application or contained within a <br />tailwater recovery system, or other system, adequate to prevent <br />discharge to waters of the State for at least four days following <br />application. <br />Storm Event The Communication Plan developed by the Storm Event Work Group will be <br />Work Group utilized in the event of a severe storm occurrence. The Storm Event Work <br />Group will continue to meet as needed. Currently, the work group is <br />comprised of staff from the Regional Water Board, DPR, University of <br />California, a reclamation district representative, CACs, and the rice industry. <br />The California Rice Commission will take the lead in facilitating this group. <br />Continued on next page <br />(Rev. 5-14) D-5 <br />