Botanical pesticide capable of controlling tobacco bacterial wilt and preparation method of botanical pesticide
A botanical pesticide and a technology for tobacco bacterial wilt disease, which are applied in the field of botanical pesticides for preventing and controlling tobacco bacterial wilt and the field of preparation thereof, and can solve problems such as unsatisfactory control effect and economic loss in tobacco production.
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[0024] Such as figure 1 As shown, another object of the present invention is to provide a kind of preparation method of the botanical pesticide of preventing and treating tobacco bacterial wilt, the preparation method of the botanical pesticide of preventing and treating tobacco bacterial wilt comprises the following steps:
[0025] Step S101, adding water, solubilizer, and emulsifier into the reaction kettle for mixing, and stirring for more than 30 minutes;
[0026] Step S102, adding berberine and preservative, and cutting in a high-speed shearing machine for 45-60 minutes.
[0027] Another object of the present invention is to provide an aqueous emulsion, a microemulsion, and an aqueous formulation of a botanical pesticide for preventing and treating tobacco bacterial wilt prepared by the method for preparing the botanical pesticide for preventing and treating tobacco bacterial wilt.
Embodiment 1
[0042] The formula of the botanical pesticide for preventing and treating tobacco bacterial wilt is:
[0043] 1% berberine + 1% polyacrylic acid resin II + 2% sodium lauryl sulfate + 6% fatty acid polyoxyethylene ester phosphate + water to make up 100%.
[0044] It is formulated as an aqueous preparation with an active ingredient berberine content of 1%.
[0045] Dilute the water agent 1000 times, and irrigate the roots or spray the base of the rhizome of the tobacco plant 7-10 days after the tobacco is transplanted, and use the medicine once every 7-10 days, and need to use the medicine continuously for 3-4 times. The relative control efficiency of blight is between 80%-90%.
[0046] 1% berberine and 72% agricultural streptomycin WP on the plot control test of tobacco bacterial wilt:
[0047] The plot test was carried out in Lincang's severely diseased fields in previous years. 15 plots were arranged, and 100 plants of Yunyan 87 varieties were planted in each plot. The toba...
Embodiment 2
[0057] The formula of the botanical pesticide for preventing and treating tobacco bacterial wilt is:
[0058] 1% berberine hydrochloride + 1% polyacrylic acid resin II + 3% calcium dodecyl sulfonate + 5% fatty alcohol polyoxyethylene ether + water to make up 100%, and the active ingredient berberine hydrochloride content is 1%. water agent.
[0059] Dilute the water agent 1000 times, and irrigate the roots or spray the base of the rhizome of the tobacco plant 7-10 days after the tobacco is transplanted, and use the medicine once every 7-10 days, and need to use the medicine continuously for 3-4 times. The relative control efficiency of blight is between 80%-90%.
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