April 2005

Pesticide Registrations and Actions

• On March 25, the Florida Department of Agriculture and Consumer Services (FDACS) exempted Syngenta Seeds from the requirement of obtaining an experimental use permit for conducting field testing of a cotton vectored with the insecticidal VIP3A protein (EPA EUP 67979- EUP-5). The exemption expires on March 31, 2006. (FDACS letter of 3/25/05).

• Effective March 2, a Section 18 specific exemption has been issued for the use of Topsin® fungicide (thiophanate-methyl) on citrus to control post-bloom fruit drop and stem end rot. The EPA registration number for the Cerexagri Inc., product is 4581-408, 73545-16, or 4581-377 and the expiration date is March 2, 2006. (FDACS letter of 2/16/05).

• On February 21, FDACS conditionally registered the nematicide fosthiazate (Nemathorin®) for pre-plant application for tomato through drip irrigation systems placed under plastic mulch before seeding or transplanting. The EPA registration number for the ISK Biosciences Corp. product is 71512-5. (FDACS PREC Agenda, 4/7/05).

• On February 25, FDACS registered the insecticide dinotefuran (Venom®) for control of sucking and chewing insects infesting leafy vegetables (except brassica). The EPA registration number for the Valent U.S.A. Corp. product is 33657-17-59639. (FDACS PREC Agenda, 4/7/05).

• On March 22, FDACS registered the insecticide novaluron (Diamond®) for control of caterpillars, plant/stink bugs, whiteflies, and thrips on cotton. The EPA registration number for the Crompton Company product is 66222-35-400. (FDACS PREC Agenda, 4/7/05).

• On March 22, FDACS registered the insecticide novaluron (Rimon®) for control of caterpillars (including potato tuber moth), whiteflies, and Colorado potato beetle on sweet and white potato. The EPA registration number for the Crompton Company product is 66222-35-400. (FDACS PREC Agenda, 4/7/05).

• The EPA has extended the tolerances for the use of the fungicide thiophanate-methyl on cotton seed and gin byproducts to December 31, 2007. These tolerances address the emergency exemption granted to Florida in 2004 that allows treatment of cotton with this fungicide to control fusarium hardlock. (Federal Register, 2/16/05).

• Based on a request by Mitsui Chemicals, Inc., tolerances are approved for use of the insecticide venom® (dinotefuran). This is a new nitroguanidine compound, which is systemic by root uptake and translaminar via foliar application. It is effective on aphids, thrips, stink bugs, mealy bugs, and whiteflies. Tolerances of importance to Florida include head and stem brassicas (subgroup 5A), cotton seed and gin byproducts, potato, fruiting vegetables, cucurbit vegetables, and leafy vegetables except brassica (group 4). Tolerances were also approved for meats and milk. (Federal Register, 3/23/05).

• Based on a request by Makhteshim-Agan of North America, Inc., tolerances are approved for use of the miticide clofentezine. This is a new tetrazine compound which affects the eggs of spider mites. Tolerances of importance to Florida include grape and persimmon. (Federal Register, 3/9/05).

• Based on a request by Dow AgroSciences, tolerances are approved for use of the fungicide Indar® (fenbuconazole). Tolerances of importance to Florida include banana, stone fruit (except plum and prune) and pecan. The tolerances expire on December 31, 2008. (Federal Register, 3/9/05).

• Based on a request by Syngenta, tolerances are approved for use of the herbicide Callisto® (mesotrione). Tolerances of importance to Florida include sweet corn forage, stover, and the huskless cob with kernels (the ear). (Federal Register, 3/23/05).

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• The PIO was made aware that strawberry was dropped from the thiram label at the beginning of 2005 and began an investigation into this occurrence. As it turns out, this is only temporary. Although the manufacturer ran out of the product in pre-selling (prior to the beginning of 2005), they envision that strawberry will be back on the label as of July. The product will be formulated as a 75 % water-dispersable granule, and come in a ten pound box, with four boxes to the case

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