Pesticide composition containing tolfenpxrad and etoxazole
A technology of pesticide composition and pyrenpyrrole, which is applied in the field of pesticide composition and its application, can solve the problems of pesticide cost for farmers polluting the environment, unfavorable agricultural sustainable development, excessive pesticide residues, etc., and is beneficial to comprehensive management and overcoming diseases Effects on pesticide resistance, crop safety
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Embodiment 1
[0019] Example 1: 15% Fenpyramid·Etoxazole Suspension Concentrate.
[0020] Fenpyran 12%, etoxazole 3%, sodium alkylsulfonate 5%, polyethylene glycol stearate 5%, gum arabic 1%, propylene glycol 2%, methanol 3%, deionized water to make up 100% . Mix the above active ingredients, dispersant, wetting agent, thickener, antifreeze, defoamer and deionized water, disperse with high speed shearing, and sand mill in a sand mill to form a highly dispersed and stable Suspension system can be used to prepare 15% Fenpyramid·Etoxazole Suspension Concentrate.
Embodiment 2
[0021] Example 2: Indoor and indoor joint toxicity test.
[0022] 1. Indoor joint toxicity test of tolfenpyrad, etoxazole and their combination against citrus psyllid.
[0023] Test insects: the third instar nymphs of citrus psyllids collected in the field and bred indoors.
[0024] The test agents: tofenpyrad, etoxazole.
[0025] Test method: Determination is carried out by dipping method, the specific method is as follows.
[0026] Select 3 fresh citrus shoots, soak them in the test drug solution for 30 seconds, take them out to dry naturally, wrap the roots with wet absorbent cotton to keep moisture, wrap them with plastic wrap, and place them in glass test tubes (200mm×30mm). repetitions. Then insert the third instar nymphs of citrus psyllids lightly anesthetized with ether with a writing brush, 20 per tube, and tie the tube mouth tightly with white gauze. After processing, put it in the observation room.
[0027] The treatment of the corresponding organic solvent wit...
Embodiment 3
[0049] Embodiment 3: field efficacy test.
[0050] 1. Field efficacy test of tofenpyrad, etoxazole and their combination on controlling citrus psyllid.
[0051]15% Fenpyridam·etoxazole suspension concentrate (12% Fenpyridam: 3% Etoxazole) was used to control citrus psyllids by spraying. Before spraying, sample at 5 points on the diagonal in each plot, select 2 to 3 tea trees with citrus psyllid eggs and adults at each point (depending on the population density), count the number of citrus psyllids on the calibration plants, and then As the base number of insect population before spraying. 3d, 7d, and 10d after spraying, investigate the number of live insects of citrus psyllids, record the number of live insects, and calculate the control effect. The control effect calculation method is as follows:
[0052] Control effect (%)=(1-CK 1 ×Pt 1 / CK 2 ×Pt 2 )×100.
[0053] Among them: CK 1 Represents the number of worms in the control area before the drug; Pt 1 Represents t...
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