Cycloxaprid water dispersible granule and preparation method thereof
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A technology of epoxifen and dispersible granules, applied in the directions of botanical equipment and methods, pesticides, biocides, etc., can solve problems such as no related reports on epoxifen formulations.
Active Publication Date: 2011-09-28
SHANGHAI SHENGNONG PESTICIDE +1
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Problems solved by technology
At present, the synthesis and application of cyclopyrid have been applied for Chinese invention patents and international PCT patents, and there are no relevant reports on the formulation of cyclopyrid
Method used
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Embodiment 1
[0029] Cyclopyrid 50%, sodium lauryl sulfate 3%, sodium lignosulfonate 6%, white carbon black 5%, urea 3%, soluble starch 1%, sodium carbonate 3%, diatom The soil is made up to 100%, mixed with airflow, crushed, kneaded with water, then added to a granulator for granulation, and then dried and sieved to obtain cyclopyrid water-dispersible granules.
Embodiment 2
[0031] Cyclopyrid 70%, sodium lauryl sulfate 4%, calcium lignosulfonate 7%, white carbon black 5%, urea 3%, soluble starch 1%, sodium bicarbonate 5%, kaolin by weight percentage Make up to 100%, mix with air flow and pulverize, add water and knead, then add to a granulator for granulation, then dry and sieve to obtain cyclopyrid water-dispersible granules.
Embodiment 3
[0033] Cyclopyrid field efficacy test:
[0034] With 50% cyclopyridin WG of embodiment 1 with 22.5g a.i. / hm 2 、30.0g a.i. / hm 2 、37.5ga.i. / hm 2 To control rice planthoppers in rice fields, investigate the control effect on rice planthoppers 1 day, 5 days, 15 days, and 30 days after spraying. Compared with the control agent, 50% Cyclopyrid WG has a better control effect on rice brown planthopper, has a longer duration of effect, and is safe to rice. The results are shown in Table 1.
[0035] Table 1 Results of field efficacy test of 50% cyclopyrid WG in controlling rice brown planthopper
[0036]
[0037]
[0038] Dilute 3000, 5000, 20000 times with 70% cyclopyridin WG of Example 2 to prevent and control grape leafhopper, investigate the control effect of 1 day, 3 days, 7 days and 14 days after application. Experiments show that 70% cyclopyrid WG has a high control effect on grape leafhopper nymphs, and the control effect of each agent treatment increases with the exte...
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Abstract
The invention belongs to the field of insecticide, and discloses a cycloxaprid water dispersible granule, and a preparation method thereof. The water dispersible granule comprises an effective component of cycloxaprid. The preparation method comprises: adding a moistening agent, a dispersing agent, an adsorbent, a disintegrating agent, a binder, a stabilizing agent and a carrier to the cycloxaprid; uniformly mixing the mixture; carrying out air jet pulverization to prepare a wettable powder; carrying out kneading, pelletizing, drying and screening to obtain products. The cycloxaprid water dispersible granule provided by the present invention is one of agricultural formulations of the cycloxaprid, and has advantages of quick disintegrating, good dispersibility, high suspending rate, good stability, easy storing, convenient using and no requirement of solvent. In addition, with the present invention, active ingredients are protected such that the active ingredients can play a role.
Description
technical field [0001] The invention relates to a cycloxaprid dosage form and a preparation method thereof, in particular to a cycloxaprid water-dispersible granule and a preparation method thereof. Background technique [0002] Cyclopyrid is an agricultural insecticide with high activity and low toxicity researched and invented by East China University of Science and Technology. Cyclopyrid is highly effective against Homoptera pests, and also has a concurrent control effect on Lepidoptera pests, especially against the major rice pest brown planthopper and the alien invasive pest Bemisia tabaci. In addition, it can also be used for cabbage aphids , Plutella xylostella, rice leaf roller and other pests. At present, the synthesis and application of cyclopyrid have been applied for Chinese invention patent and international PCT patent, but there is no related report about the formulation of cyclopyrid. Contents of the invention [0003] One of the technical problems to be s...
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