Agricultural insecticide composition containing phryma leptostachya extractive
An insecticidal composition and a technology for the herbal medicine, which are applied in the field of agricultural insecticidal compositions and agricultural insecticidal compositions containing the extract of the herbal medicine, can solve the problem of increasing pesticide residues, increasing the dosage of drugs, and non-target organisms. and adverse environmental effects, to achieve the effect of reducing dosage, delaying resistance and improving crop safety
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[0031] (1) Preparation of Sperancifolia Extract
[0032] The extract of Speranthema fragrans described in this example can be prepared according to conventional methods, such as dipping extraction method, ultrasonic vibration extraction method and the like. In order to fully prepare the extract of Speranthemi fragrans, increase the yield of Sperancus fragrans extract, and shorten the time for preparing the fragrans fragrans extract. In this embodiment, it is preferable to use the method of combining immersion extraction and ultrasonic vibration extraction to prepare the extract of Speranthema fragrans.
[0033] It is best to use dried Sperancis fragrans, which is crushed and extracted by impregnating with organic solvents. There are various organic solvents available in this embodiment, such as methanol, ethanol, acetone, ethyl acetate, dichloromethane, chloroform or their mixed solvents.
[0034] As an optimal method for preparing the extract of Speranthema, specifically: a...
Embodiment 1
[0044] Take by weighing 250 grams of Sperantoides extract, 50 grams of tonpyradram, 50 grams of sodium lignosulfonate, 20 grams of open powder BX (sodium dibutylnaphthalene sulfonate), 30 grams of K-12 (dodecyl sodium sulfate), 20 grams of PVA (polyvinyl alcohol, molecular weight 2000), 20 grams of polyvinylpyrrolidone, 100 grams of kaolin, and 1000 grams of water. The above-mentioned raw materials are mixed by a conventional method for preparing a suspending agent, and sand-milled by a sand mill until the particle size is less than 5 μm, and a suspending agent with an active ingredient content of 30% Sperantospermia extract·tofenpyramid is prepared.
Embodiment 2
[0046] Take by weighing 150 grams of Sperantosporum extract, 10 grams of emamectin, 25 grams of T36 (polycarboxylate), 30 grams of open powder BX (sodium dibutylnaphthalene sulfonate), 20 grams of K-12 (Sodium Lauryl Sulfate), 100 grams of Peronite, and 1000 grams of water. The above-mentioned raw materials are mixed through a conventional method for preparing a suspending agent, and sand-milled by a sand mill until the particle size is less than 5 μm, and the active ingredient content is 16% Speranthema extract·emamectin suspending agent.
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