Synergistic pesticide composition and use thereof
A technology of a composition and a pesticide composition, applied in the application, insecticide, biocide and other directions, can solve the problems of insufficient pest effect and high production cost, and achieve the goal of overcoming pest resistance, reducing usage, and reducing field medication. amount of effect
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example 1
[0014] Test object: Nilaparvata lugens (Stal): collected from Lingshui, Hainan and raised indoors to the second generation.
[0015] Test method: The test refers to the "People's Republic of China Agricultural Industry Standard NY / T1154.11-2008", using the rice stalk dipping method to pull out the strong rice plants from the tillering stage to the initial booting stage, wash them, and cut them into 15cm long with roots Rice stalks, 3 plants in groups, dry in the shade until there are no water marks on the surface. Soak the rice stems in the diluted medicament for 30 seconds, take them out and dry them, wrap the roots with soaked absorbent cotton and put them in the culture cup, and suck the mid-third instar nymphs into the culture cup, 20 per cup. Clean water control, repeat 3 times for each concentration. After treatment, they were raised in an incubator with a temperature of 27°C and a photoperiod of 16h:8h (L:D). Check the number of deaths after 4 days.
[0016] DPS data proc...
example 2
[0040] Test object: Plutella xylostella (Plutella xylostella), collected from Shenzhen Yulu Vegetable Farm, raised indoors to the second generation.
[0041] Test method: The test refers to the "People's Republic of China Agricultural Industry Standard" (Pesticide Indoor Bioassay Test Guidelines, Insecticide NY / T 1154.14-2008), and adopts the leaf dip method. Soak the cabbage leaves of the same size in the prepared medicinal solution for 10 seconds, take them out and dry in the shade, and put them in a petri dish with moisturizing filter paper; select third-instar larvae with uniform growth and put them in a petri dish for soak The leaves of the liquid medicine were reared, and each repeated 20 insects. Set clear water as a control, and each treatment was repeated 3 times. Place all the petri dishes in a white disk, and cover with two layers of wet gauze for moisture. They were placed in a light incubator at 25±1°C with a photoperiod of L:D=(12:12) h. The number of dead insects...
example 3
[0047] Test object: Plutella xylostella (Plutella xylostella), collected from Shenzhen Yulu Vegetable Farm, raised indoors to the second generation.
[0048] Test and statistical calculation method: the same as the bioassay example 2.
[0049] Table 3. Indoor virulence test results of tolfenpyrad and phoxim paired Plutella xylostella
[0050]
[0051] The test results (Table 3) show that when the ratio of tolfenpyrad and phoxim is between 40:1 and 1:40, it has a significant synergistic effect on the indoor virulence of Plutella xylostella, especially at 1:1~ When it is between 1:20, the synergistic effect is more obvious, and the co-toxicity coefficient is above 190.
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