Pesticide composition
A pesticide composition and crop disease technology, applied in biocides, animal repellents, plant growth regulators, etc., can solve the problems of high production and use costs, difficulty in large-scale promotion and application, etc., to achieve improved control efficiency, Improve the effect of prevention and control and reduce the effect of pollution
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example 1
[0016] Bioassay example 1: Indoor virulence determination of Magnaporthe grisea in combination with Pyramide and Isorphine
[0017] Test object: Rice blast fungus (collected from the field and separated and purified)
[0018] Test method: pot method. Three-leaf and one-heart stage rice seedlings with consistent growth are selected, with 2 seedlings per pot, and 5 pots for each treatment. The rice blast fungus was cultured on tomato juice oat agar medium, and the spores were washed with sterile water after sporulation to make 1×10 5 A spore / mL suspension was sprayed and inoculated evenly on the tested rice seedlings. After inoculation, the seedlings were put on a black plastic bag and cultured for 24 hours (25°C). After 24 hours of inoculation, the agent was treated with 5 concentration gradients for each agent, and sprayed with a Potter spray tower at a pressure of 50 PSI, 5 mL per treatment. After spraying, the rice seedlings were cultured at 25°C and relative humidity ≥90%. Aft...
Embodiment 1
[0032] Example 1: 15.5% rice blastamide·isomagazine suspension agent
[0033] Blastamide 15%
[0034] Different rice blast net 0.5%
[0035] Sodium methyl naphthalene sulfonate formaldehyde condensate (wetting agent) 7%
[0036] Xanthan gum (thickener) 2%
[0037] Bentonite (thickener) 1%
[0038] Nongru 600# phosphate (dispersant) 3%
[0039] Glycerol (antifreeze) 5%
[0040] Make up the water to 100%.
[0041] The active ingredient, dispersant, thickener, wetting agent, antifreeze and water are mixed uniformly according to the proportion of the formula, and after grinding and / or high-speed shearing, 15.5% rice blastamide·isoblastic blast is obtained Net suspending agent.
[0042] This embodiment is applied to control rice blast. 15.5% Oryzae amide·Isorhizome Suspension Agent 180g a.i. / ha [a.i., active ingredient; ha, hectares] diluted with water and sprayed, the control effect of 7 days after the application is 92.8%. The 20% rice blastamide suspending agent was diluted with water at 20...
Embodiment 2
[0043] Example 2: 36% blastamide·isomagazine wettable powder
[0044] Blastamide 30%
[0045] Different rice blast net 6%
[0046] Sodium lauryl sulfate (wetting agent) 2%
[0047] Sodium lignosulfonate (dispersant) 5%
[0048] White carbon black (filler) 10%
[0049] Kaolin (filler) fills up to 100%
[0050] The active ingredients, various auxiliaries and fillers are fully mixed according to the proportion of the formula, and then pulverized by an ultrafine grinder to obtain a 36% blastamide·isopyramide wettable powder.
[0051] This embodiment is applied to control rice blast. The 36% rice blastamide·isomagazine wettable powder was diluted and sprayed with water at 150g a.i. / ha, and the control effect was 93.2% 7 days after the administration. The 20% rice blastamide suspending agent was diluted with water at 200g a.i. / ha and 40% Isoblastamide emulsifiable concentrate at 1000g a.i. / ha, diluted and sprayed with water, and the control effects were 87.2% and 82.4% respectively after 7 day...
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