Complex biological fungicide for preventing and treating wheat scab and application thereof
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A technology for compounding fungicides and wheat scab, which is applied in the field of pesticides to achieve the effects of good quick-acting, long-lasting effect and broad bactericidal spectrum.
Active Publication Date: 2014-11-12
ANHUI FENGLE AGROCHEM
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Problems solved by technology
The Jiangsu Pesticide Research Institute has developed a high-efficiency new agent, cyclostrobin, which has been better used in the control of wheat scab. Compounding) a new type of compound fungicide that can effectively prevent and treat the disease
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Embodiment 1
[0016] Embodiment 1: 24% Jinggangmycin A cyclostrobin wettable powder
[0017] Jinggangmycin A4%, cyclostrobin 20%, NNO8%, K12 (sodium lauryl sulfate) 4%, and the rest is kaolin as filler.
[0018] The above-mentioned components were mixed, air-jet crushed to a fineness of 350-400 mesh, analyzed and inspected and put into storage to obtain 24% Jinggangmycin A · cyclostrobin wettable powder.
Embodiment 2
[0019] Embodiment 2: 40% Jinggangmycin A cyclostrobin suspension concentrate
[0021] The above components were mixed, high-speed sheared, ground with a sand mill, analyzed and tested, and put into storage to obtain 40% Jinggangmycin A · cyclostrobin suspension concentrate.
Embodiment 3
[0022] Example 3 16% Jinggangmycin A Cyclostrobin microemulsion
[0023] Jinggangmycin A8%, Cyclostrobin 8%, N-Methylpyrrolidone 1%, Calcium Alkylbenzene Sulfonate 2%, Phenylphenol Formaldehyde Resin Polyoxyethyl Ether 2%, Ethylene Glycol 1% 1%, 1% of silicone compound, 2% of xanthan gum, 1% of magnesium aluminum silicate, and 74% of water to prepare 16% Jinggangmycin A · cyclostrobin microemulsion.
[0024] Add Jinggangmycin A, cyclostrobin, solvent N-methylpyrrolidone, emulsifier calcium alkylbenzene sulfonate and phenethylphenol formaldehyde resin polyoxyethyl ether, and dissolve into a homogeneous oil phase; Mix water, antifreeze ethylene glycol, thickener xanthan gum, and defoamer silicone compounds to form a uniform water phase. Under high-speed stirring, add the water phase to the oil phase to prepare 16% Jinggangmycin A·cyclostrobin microemulsion.
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Abstract
The invention discloses a complex biological fungicide for preventing and treating wheat scab. The complex biological fungicide comprises validamycin A and JS399-19, wherein the weight ratio of the validamycin A to the JS399-19 ranges from 1:20-20:1. The invention further discloses application of the complex biological fungicide in preventing and treating wheat scab. The validamycin A and the JS399-19 in the complex biological fungicide are fungicides with different functional mechanisms and do not have cross-resistance with carbendazim and triadimefon, wherein carbendazim and triadimefon are leading medicine for preventing and treating wheat scab in the past. The complex biological fungicide has the advantages of being wide in bacteriocidal spectrum, high in absorption, good in fast-acting property, long in preserving effect period, environmentally friendly, low in cost and easy to process.
Description
technical field [0001] The invention belongs to the technical field of pesticides, and in particular relates to a biological compound fungicide for preventing and treating wheat scab and its application. Background technique [0002] Wheat scab is an explosive and destructive disease, which can lead to serious reduction in wheat production or even extinction in large outbreaks, and the diseased wheat contains toxins, which can cause human and animal poisoning after eating, and the occurrence has been serious in the past two years. It mainly infects spikelets, and in severe cases, the entire spikelets die in the late stage, and a pink gelatinous mold layer is produced on the spikes, and the grains are shrunken and shriveled. The disease can infect and harm wheat from the seedling stage to the middle and late stage, especially in the earing and flowering stage of wheat. Generally, the yield can be reduced by 10% to 20%, and in severe disease years, the yield can be reduced by...
Claims
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