Plant pesticide for preventing and controlling tobacco aphid and use thereof
A technology for tobacco aphids and plants, applied in the direction of plant growth regulators, applications, insecticides, etc., to achieve obvious control effects and simple and easy-to-operate extraction processes
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Embodiment 1
[0013] Take the bulbs of the medicinal parts of garlic, the fruit of the medicinal parts of Litsea Cubeba, and the bulbs of the medicinal parts of onions, add 10 times the mass of water and stir evenly, soak at room temperature for 10 hours, and use the Chinese Pharmacopoeia (2005 edition) appendix XD volatile oil Determination method to extract volatile oil, add 30% of the total weight of the extracted volatile oil to anhydrous sodium sulfate, let it stand overnight, filter and dehydrate, mix the volatile oil extracts of the above three raw materials evenly according to the volume ratio of 1:1:1, and obtain the volatile oil stock solution.
[0014] The effect of adding anhydrous sodium sulfate is mainly to absorb the water molecules in the volatile oil, so that the purity of the volatile oil is higher. Anhydrous sodium sulfate is a commonly used liquid dehydration reagent. Or use anhydrous magnesium sulfate instead of anhydrous sodium sulfate for dehydration.
[0015] 5 par...
Embodiment 2
[0025] Take the bulbs of the medicinal parts of garlic, the fruit of the medicinal parts of Litsea Cubeba, and the bulbs of the medicinal parts of onions, add 10 times the mass of water and stir evenly, soak at room temperature for 10 hours, and use the Chinese Pharmacopoeia (2005 edition) appendix XD volatile oil Determination method to extract volatile oil, add 30% anhydrous sodium sulfate to the extracted volatile oil, let it stand overnight, filter and dehydrate, mix the volatile oil extracts of the above three raw materials according to the volume ratio of 1:1:1, and obtain the volatile oil stock solution .
[0026] 5 parts of the mixed volatile oil stock solution, add 10 parts by weight of 80wt% ethanol, stir and mix to obtain the plant medicine.
[0027] Use of botanicals:
[0028] After 3 p.m. in rainless weather, dilute the product 500 times with tap water, and spray it on the surface of tobacco leaves with aphids at an amount of 50 kg per mu of tobacco field. The c...
Embodiment 3
[0036] Take the bulbs of the medicinal parts of garlic, the fruit of the medicinal parts of Litsea Cubeba, and the bulbs of the medicinal parts of onions, add 10 times the mass of water and stir evenly, soak at room temperature for 10 hours, and use the Chinese Pharmacopoeia (2005 edition) appendix XD volatile oil Determination method to extract volatile oil, add 30% anhydrous sodium sulfate to the extracted volatile oil, let it stand overnight, filter and dehydrate, mix the volatile oil extracts of the above three raw materials according to the volume ratio of 1:1:1, and obtain the volatile oil stock solution .
[0037] 5 parts of the mixed volatile oil stock solution, add 10 parts by weight of 80wt% ethanol, stir and mix to obtain the plant medicine.
[0038] Use of botanicals:
[0039] After 3 p.m. in no-rain weather, dilute this product 600 times with tap water, and spray it on the surface of tobacco leaves with aphids at an amount of 50 kg per mu of tobacco field. The c...
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