Insecticidal composition containing pymetrozine and thiacloprid and preparation method
An insecticidal composition, thiacloprid technology, applied in botany equipment and methods, insecticides, biocides, etc., can solve the problems of no reported cross-resistance to pymetrozine, etc., to reduce the cost of pesticides for farmers and delay the development of pesticides. Time of resistance generation, effect of pollution reduction
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[0057] Example 1: (9:1)
[0058] An insecticidal composition and suspending agent containing pymetrozine and thiacloprid, which are made of raw materials with the following mass fractions:
[0059]
[0060] The method for preparing the insecticidal composition and suspension containing pymetrozine and thiacloprid, the steps are:
[0061] A. According to the designed formula, weigh out the pymetrozine and thiacloprid original medicines, put them in a container, and then add sodium lauryl sulfate, sodium lignin sulfonate and naphthalene sulfonate formaldehyde polymer, acrylic Triol, AF9903, white carbon black, stir evenly;
[0062] B. Stir at high speed (1000 rpm) for pre-dispersion for 25-35 min, then stop stirring (wait until the solution is completely homogeneous liquid), add sanding media, and start sanding;
[0063] C. Stop sanding after 1.8-2.2h (until more than 95% of the particles have a particle size of 0.1-5μm), filter, remove glass beads, and add other additives (sodium benzoa...
Example Embodiment
[0064] Example 2: (7:3)
[0065] An insecticidal composition and suspending agent containing pymetrozine and thiacloprid, which are made of raw materials with the following mass fractions:
[0066]
[0067] The steps of the preparation method of the insecticidal composition containing pymetrozine and thiacloprid are: the same as in Example 1.
[0068] The additives such as sodium lauryl sulfate can use MorwetEFW (composition is a mixture of sodium alkyl naphthalene sulfonate and anionic wetting agent, Aksubel), Terspense 4896 (alkyl phenol polyether wetting and dispersing agent) , Sodium dibutyl naphthalene sulfonate, dioctyl sodium succinate sulfonate, tea cumin, GY-W04 (polycarboxylate wetting agent), etc. or any combination of two to six.
Example Embodiment
[0069] Example 3: (3:2)
[0070] A water dispersible granule containing pymetrozine and thiacloprid, which is made of the following mass fractions of raw materials:
[0071]
[0072] The preparation method of the insecticidal composition containing pymetrozine and thiacloprid, the steps are:
[0073] A. Combine pymetrozine, thiacloprid, dispersant (sodium lauryl sulfate and MorwetEFW (1:3)), wetting agent (MorwetD-425 and naphthalenesulfonate formaldehyde polymer (3:1), Filler (diatomite), disintegrant (starch) and other samples are weighed according to the design formula, mixed, and crushed on a high-speed crusher;
[0074] B. Place the crushed sample in a beaker, add water containing binder (water containing 10-20% binder) while stirring, it can be preliminarily kneaded into mud, and then added to a granulator to squeeze and granulate ;
[0075] C. Finally, the extruded particles are placed in an oven at 30-40°C and dried, and the moisture content is preferably 0.5-1.0%.
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