Powdery disease and pest control medicament used for crab breeding and preparation method thereof
A powdery, pest and disease technology, applied in powder delivery, pharmaceutical formulations, medical preparations with non-active ingredients, etc., can solve the problems of polluting water bodies, affecting secondary breeding, and producing drug resistance of bacteria, improving stability and improving Effects of health and food safety, good swelling and low permeability
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Embodiment 1
[0024] A powdery pest control medicament for crab breeding, the components by weight are as follows: 5 parts of zeolite powder, 4 parts of betel nut, 5 parts of neem, 3 parts of rhubarb, 3 parts of rhubarb, 3 parts of Chinese gall, 4 parts of Cortex Phellodendri, 3 parts of Andrographis paniculata, 10 parts of additives.
[0025] As preferably, wherein the preparation method of additive is as follows:
[0026] 1) Take 5 parts of starch, add 2 times the amount of distilled water, raise the temperature to 50°C, stir to dissolve, then add 3 parts of ammonium persulfate, react at constant temperature for 2 hours, then add 3 parts of sorbitol, 2 parts of glycerin, stir to dissolve and then heat up To 70 ° C, constant temperature reaction for 3 hours, to prepare modified starch;
[0027] 2) Take 10 parts of distilled water, add 5 parts of pyrrolidone, fully dissolve to obtain a transparent solution, pass a mixed gas composed of ethylene and nitrogen at a volume ratio of 1:5 for 20 ...
Embodiment 2
[0037] A powdery insect pest control agent for crab breeding, the components by weight are as follows: 7 parts of zeolite powder, 5 parts of betel nut, 6 parts of neem, 3 parts of basil, 4 parts of rhubarb, 3 parts of Chinese gall, 4 parts of Cortex Phellodendri, 3 parts of Andrographis paniculata, 12 parts of additives.
[0038] As preferably, wherein the preparation method of additive is as follows:
[0039] 1) Take 7 parts of starch, add 2.5 times the amount of distilled water, raise the temperature to 55°C, stir and dissolve, then add 3 parts of ammonium persulfate, react at constant temperature for 1.5 hours, then add 3 parts of sorbitol and 2 parts of glycerin, stir and dissolve Raise the temperature to 80°C and react at constant temperature for 2.5 hours to obtain modified starch;
[0040] 2) Take 12 parts of distilled water, add 6 parts of pyrrolidone, fully dissolve to obtain a transparent solution, pass through a mixed gas composed of ethylene and nitrogen at a volu...
Embodiment 3
[0050] A powdery insect pest control agent for crab breeding, the components by weight are as follows: 10 parts of zeolite powder, 6 parts of betel nut, 7 parts of neem, 4 parts of basil, 5 parts of rhubarb, 4 parts of Chinese gall, 5 parts of Cortex Phellodendri, Andrographis paniculata 4 parts, additive 15 parts.
[0051] As preferably, wherein the preparation method of additive is as follows:
[0052] 1) Take 10 parts of starch, add 3 times the amount of distilled water, heat up to 60°C, stir to dissolve, then add 4 parts of ammonium persulfate, react at constant temperature for 1 hour, then add 4 parts of sorbitol and 3 parts of glycerin, stir to dissolve and then heat up To 90 ℃, constant temperature reaction 2h, prepared modified starch;
[0053] 2) Take 15 parts of distilled water, add 7 parts of pyrrolidone, fully dissolve to obtain a transparent solution, pass a mixed gas composed of ethylene and nitrogen at a volume ratio of 1:5 for 30 minutes, then raise the temper...
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