Apple tree insecticide and preparation method thereof
A technique for insecticides and apple trees, applied in the direction of insecticides, botanical equipment and methods, biocides, etc., can solve problems such as poor insecticidal effects, achieve good insecticidal effects, broad market prospects, and satisfy the market effect of demand
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Embodiment 1
[0028] An insecticide for apple trees, comprising the following raw materials in parts by weight: 30 parts of tea seed powder, 10 parts of Sophora sophorae, 10 parts of peppermint, 15 parts of bitter bark vine, 20 parts of Chinese toon leaves, 20 parts of arborvitae, 15 parts of aloe 2 parts, 2 parts of plant tobacco extract.
[0029] Wherein, the preparation method of described plant tobacco extract comprises the following steps:
[0030] 1) Grinding the tobacco into powder, adding potassium hydroxide aqueous solution 5 times the weight of the tobacco, the mass concentration of the potassium hydroxide aqueous solution is 10%, stirring evenly to obtain a mixed solution;
[0031] 2) filtering the mixed solution to obtain the filtrate;
[0032] 3) Heat and concentrate the filtrate, add citric acid and stir when the remaining volume of the filtrate reaches 50%, stop heating when the pH value reaches 6 and let it cool down to normal temperature to obtain plant tobacco extract.
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Embodiment 2
[0043] An insecticide for apple trees, comprising the following raw materials in parts by weight: 35 parts of tea seed powder, 10 parts of Sophora alopecia, 10 parts of peppermint, 20 parts of bitter bark vine, 20 parts of Chinese toon leaves, 20 parts of arborvitae, 17 parts of aloe 3 parts, 3 parts of plant tobacco extract.
[0044] Wherein, the preparation method of described plant tobacco extract comprises the following steps:
[0045] 1) Grinding the tobacco into powder, adding potassium hydroxide aqueous solution 5 times the weight of the tobacco, the mass concentration of the potassium hydroxide aqueous solution is 10%, stirring evenly to obtain a mixed solution;
[0046] 2) filtering the mixed solution to obtain the filtrate;
[0047] 3) Heat and concentrate the filtrate, add citric acid and stir when the remaining volume of the filtrate reaches 50%, stop heating when the pH value reaches 6 and let it cool down to normal temperature to obtain plant tobacco extract.
...
Embodiment 3
[0058] An insecticide for apple trees, comprising the following raw materials in parts by weight: 36 parts of tea seed powder, 12 parts of Sophora alopecia, 13 parts of peppermint, 21 parts of bitter bark vine, 20 parts of Chinese toon leaves, 22 parts of arborvitae, 20 parts of aloe 3 parts, 3 parts of plant tobacco extract.
[0059] Wherein, the preparation method of described plant tobacco extract comprises the following steps:
[0060] 1) Grinding the tobacco into powder, adding potassium hydroxide aqueous solution 5 times the weight of the tobacco, the mass concentration of the potassium hydroxide aqueous solution is 10%, stirring evenly to obtain a mixed solution;
[0061] 2) filtering the mixed solution to obtain the filtrate;
[0062] 3) Heat and concentrate the filtrate, add citric acid and stir when the remaining volume of the filtrate reaches 50%, stop heating when the pH value reaches 7, and let it cool down to normal temperature to obtain plant tobacco extract. ...
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