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Novel rice seed treatment agent

A seed treatment and formulation technology, which is applied in the field of pesticides, can solve the problems of decreased control effect of rice bakanae disease, decreased sensitivity of prochloraz, to save the cost of medicine and labor, reduce adverse effects, and reduce the number of spraying and spraying. effect of dose

Inactive Publication Date: 2013-05-01
潘登
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to long-term use, rice bakanae pathogens have developed resistance to carbendazim, and their sensitivity to prochloraz has also decreased significantly, so that the control effect of these agents on rice bakanae disease has decreased significantly.

Method used

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  • Novel rice seed treatment agent
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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0018] Example 1: Indoor Bioassays

[0019] 1. Test object: Fusarium moniliforme.

[0020] 2. Test method: refer to "Pesticide Bioassay Test Guidelines NY / T1156.2-2006", and use the drug-containing medium method.

[0021] 3. Data analysis: use DPS3.0 software for analysis. Calculate mycelia growth inhibition rate (%) according to test data, obtain toxicity regression equation, EC 50 value and co-toxicity coefficient (CTC).

[0022] 4. Evaluation method: Refer to "Pesticide Bioassay Test Guidelines NY / T1156.2-2006", and evaluate the synergistic effect of pesticide mixture according to the co-toxicity coefficient (CTC) of Sun Yunpei's method (1960). CTC≤80 means antagonistic effect; CTC≥120 means synergistic effect; 80<CTC<120 means additive effect.

[0023] 5. Results and analysis:

[0024] Table 1: Inhibitory activity of fluazinam and cartap on mycelial growth of Bakanae oryzae

[0025]

[0026] The indoor measurement results show (Table 1), fluazinam has higher antib...

Embodiment 1

[0027] Embodiment 1: 2.5% fluazinam · cartap suspension seed coating

[0028] Weigh 0.5g of fluazinam original drug and 2g of cartap original drug, add the two original drugs into water, stir in a stirring tank to a homogeneous liquid, add 0.5% to 10% of dispersant (sodium lignosulfonate), moisten Agent (alkyl naphthalene sulfonate) 0.5% ~ 10%, film forming agent (polyvinyl acetate) 4%, after stirring evenly; under 60 ~ 120rpm / min mechanical stirring, slowly add the thickener ( Polyvinyl alcohol) 0.1%~5%, warning color (basic rhodamine) 1%, antifreeze agent (ethylene glycol) 0.1%~5%, defoamer (silicone oil) 0.01%~3%, make up to 100ml with water, When grinding, air compressed pipelines are used to transport the material liquid, and 4 sand mills connected in series (filled with fine zirconia beads and coarse zirconia beads) are used for continuous sand grinding to make 2.5% fluazinam · cartap suspension seed coat agent (FS).

[0029] 2.5% Fluazinam · Cartap FS was uniformly dr...

Embodiment 2

[0032] Embodiment 2: 5% fluazinam·cartap microemulsion

[0033] Weigh 2.5g of fluazinam original drug and 2.5g of cartap original drug, add 5% to 25% of organic solvent, 5% to 25% of emulsifier, 0.1% to 5% of antifreeze, make up to 100ml with water, and make 5 % Fluazinam Cartap ME;

[0034] In the above-mentioned microemulsion trial production, the organic solvent is 150# mineral spirits, the emulsifier is fatty acid polyoxyethylene ether series mixture, and the antifreeze agent is ethylene glycol. Adding fluazinam into the organic solvent under the condition of stirring, then adding a co-solvent, adding an emulsifier after the original drug is completely dissolved, and making the emulsifier dissolve. Add water and antifreeze under the condition of 50-90rpm / min, add cartap original drug, and stir for 30 minutes to obtain a uniform and transparent microemulsion.

[0035] Table 3: Control effect of 5% fluazinam·cartap ME on rice bakanae disease and stem apical nematode diseas...

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Abstract

The invention relates to a rice seed treatment agent as combined pesticidal and fungicidal agent and application thereof. The active ingredient of combined pesticide is cartap, and the active ingredient of fungicide is fluazinam. Calculated according to percentage by weight, the content of the cartap is 50 to 1 percent and the content of the fluazinam is 1 to 40 percent. The proportion of the cartap to the fluazinam is 40:1 to 1:40, preferably 20:1 to 1:20. When added with conventional auxiliaries, the cartap and the fluazinam can be processed into agriculturally commonly used agent. The combined pesticidal and fungicidal agent can adopt a seed-coating method, a seed-soaking method and a sprout treatment method to effectively control rice bakanae disease, aphelenchoides besseyi and other seed-borne diseases and soil-borne diseases.

Description

technical field [0001] The invention belongs to the technical field of pesticides, and relates to a combined insecticide and fungicide of fluazinam and cartap and a method for preventing and controlling rice seed-borne diseases. Background technique [0002] Since the 1990s, rice seed-borne diseases have become a prominent problem in production, and rice bakanae disease, rice stem nematode disease, rice blast, rice streak disease, etc. have become frequent diseases. These diseases are all transmitted by seeds, and the best way to prevent and control these diseases is to use seed treatment (seed coating, medicament soaking, etc.). [0003] At present, there are many kinds of medicaments used for rice seed treatment in production, mainly carbendazim, prochloraz, cyclostrobin, etc. are used to kill pathogenic fungi stored in rice seeds to prevent and control rice bakanae disease, rice seedling disease, etc. Plague and other fungal diseases. Due to long-term use, rice bakanae ...

Claims

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Application Information

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IPC IPC(8): A01N47/12A01N43/40A01P3/00A01P5/00
Inventor 潘登
Owner 潘登
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