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January 2006 |
Pesticide Registrations and Actions
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Agricultural
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The Florida Department of
Agriculture and Consumer Services (FDACS) registered the fungicide cyazofamid
(Ranman®) for control of diseases on cucurbits, potato, and tomato. The EPA registration number for the ISK
Biosciences product is 71512-3. (FDACS
PREC Agenda, 1/12/06).
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 On December 28, the EPA published
an exemption from the requirement of a tolerance for residues of the bacteriophages that specifically target the bacterial pathogens Xanthomonas
campestris pv. vesicatoria and Pseudomonas syringae pv. tomato when
used as bacteriocides on tomato and pepper.
The EPA registration number for the Omnilytics product (AgriPhage®) is
67986-1. (Federal Register,
12/28/05).
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 The
U.S. Food and Drug Administration has approved for use tylosin tartrate (Tylan®),
manufactured by Elanco Animal Health to control American foulbrood disease
in honeybee hives. The
registration of this antibiotic will hopefully help to combat
oxytetracycline resistant forms of the bacterium, Paenibacillus larvae.
(USDA ARS News, 12/19/05).
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 Several
UF Extension sources have mentioned the active ingredients chlorfenapyr and
novaluron as materials available for biotype Q whitefly management.
Currently, novaluron is only registered on cotton, white potato, and
sweet potato. Chlorfenapyr can
only be used on greenhouse grown fruiting vegetables (tomato, pepper,
eggplant), not field grown, under Olympic’s Pylon® label.
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 Syngenta has now marketed abamectin
as a seed treatment for fruiting vegetables, leafy vegetables, cucurbits,
brassicas, and bulb and root vegetables as well as cotton to protect against
nematodes. The material (Avicta®) is
restricted and only for use at company-approved treating stations. It can only be purchased in conjunction with
the FarMore Technology Pak, which includes the fungicides mefenoxam and
fludioxonil(The Grower, January 2006).
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- The EPA has extended the
time-limited tolerances for the fungicides fenbuconazole in grapefruit and thiophanate-methyl in fruiting vegetables until 12/31/08. (Federal Register, 12/21/05)
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Non-Agricultural
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 IR-4 recently released priorities
for ornamental horticulture.
Pathologists ranked Phytophthora and Pythium as the most
important, while entomologists ranked thrips the highest priority. Weed scientists ranked broadleaf weeds and
sedges as the primary project for 2006.
Active ingredients for which A-priorities have been given include:
cyazofamid, fenamidone, furfural, mandipropamide, fluopicolide, metaflamizone,
clothianidin, thiamethoxam, chlorfenapyr, bifenthrin, dinotefuran, acetamiprid,
halosulfuron, and sulfentrazone. (IR-4 Newsletter,
January 2006).
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Other Actions
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 The USDA is addressing how to
comply with a June court ruling that would prohibit use of numerous synthetic
substances in products bearing USDA’s organic seal. It also is trying to address the pasturing
requirement for organic livestock. The
new policy will require for the first time that ruminants must graze pasture for
at least 120 days per year, except in certain situations. (Pesticide & Toxic Chemical News,
11/28/05).
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