Pesticide bactericidal composition and preparation thereof
A composition and pesticide technology, applied in the direction of fungicides, biocides, biocides, etc., can solve undiscovered problems, achieve the effects of reducing usage, improving control effects, and reducing costs
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Embodiment 1
[0032] Embodiment 1: the preparation of bactericidal composition and indoor toxicity test thereof:
[0033] 1. Drugs to be tested
[0034] 2-[2-(2,4-Dichlorophenyl-2-hydroxy-hexyl]-2,4-dihydro-[1,2,4]triazole-3-thione.
[0035] 2-cyclopentyl-4-p-toluidine quinoline.
[0036] 2. Pathogens tested
[0037] Tomato bacterial wilt pathogen (the pathogen of bacterial wilt was provided by the Laboratory of Molecular Interaction between Plants and Microorganisms, Hunan Agricultural University).
[0038] 3. Test treatment method
[0039] Preparation of liquid medicine
[0040] Using acetone as solvent, 2-[2-(2,4-dichlorophenyl-2-hydroxy-hexyl]-2,4-dihydro-[1,2,4]triazole-3-thione: The mass ratio of 2-cyclopentyl-4-p-toluidine quinoline is (1:0), (1:1), (1:2), (1:3), (1:4), (1 :5), (0:1), (2:1), (3:1), (4:1), and (5:1) were configured to be 200mL each with a mass concentration of 5mg / mL.
[0041] 4. Seedling spraying and inoculation of R. solanacearum
[0042] Cultivate tomato s...
Embodiment 2
[0056] Embodiment 2: the preparation of bactericidal preparation
[0057] As a preferred technical solution of the present invention, the preparation is prepared as water-dispersible granules.
[0058] Described water dispersible granule system, preparation method is as follows:
[0059] Mix active ingredient A, active ingredient B, dispersant, water, disintegrating agent and filler evenly, crush with ultrafine jet mill, knead, and then add to fluidized bed granulation dryer for granulation, drying, sieving After separation, the water dispersible granules of the bactericidal composition of the present invention are obtained through sampling and analysis.
[0060] According to the indoor toxicity test measurement result of Table 1, 2-[2-(2,4-dichlorophenyl-2-hydroxyl-hexyl]-2,4-dihydro-[1,2,4]triazole The mass ratio of -3-thione and 2-cyclopentyl-4-p-toluidine quinoline is between (1~5): (1~5), all have synergistic effect, wherein 2-[ 2-(2,4-Dichlorophenyl-2-hydroxy-hexyl]...
Embodiment 3
[0063] Embodiment 3: field efficacy test
[0064] In order to further verify the practical application effect of the present invention, the field efficacy test of controlling tomato bacterial wilt was carried out by adopting the water-dispersible granule preparation of the fungicidal composition prepared by the present invention.
[0065] Test treatment: In this test, according to the preparation of water dispersible granules formula 1-6 in Example 2, field efficacy tests on the control of tomato bacterial wilt were carried out.
[0066] Test method: the area of each plot is 10m 2 , repeated 3 times; the drug efficacy method of investigation before spraying and prevention and control is as follows: randomly sample 5 points in the test treatment area, get 4 plants at fixed points, carry out disease classification according to the relevant standards of national field trials, record the single plant disease state, calculate Anti-effect.
[0067] Disease grading criteria for...
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