Method and composition using physical manner for pest control
A technology for controlling pests and compositions, applied in the direction of botany equipment and methods, applications, insecticides, etc., can solve the problems of affecting plant photosynthesis, residual environmental pollution, and low drug efficacy, and achieves broad insecticidal spectrum and wide application foreground effect
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Embodiment 1
[0049] Example 1: Effect Test of Water Evaporation Inhibitor
[0050] Weigh 3g of distilled water and 3g of water evaporation inhibitor respectively and pour them into a petri dish with a diameter of 90mm, weigh the total mass, place it naturally, and record the humidity and temperature during the test. Weigh every 20min, record the total mass change, and calculate and test the effect of water evaporation inhibitor on water evaporation ( Figure 5 ).
[0051]
[0052] Figure 5 is the time-dependent evaporation rate after water evaporation is inhibited by the water evaporation inhibitor. Compared with the water evaporation rate of distilled water, the water evaporation inhibitor has an obvious inhibitory effect on water evaporation. The later water evaporation rate is about 1 / 2 of water, which significantly slows down the speed of water evaporation and diffusion, thereby prolonging the action time of the solution.
[0053] In addition, the solution was sprayed on the lea...
Embodiment 2
[0057] Embodiment 2: a kind of physical method and composition of pest control, its composition is as follows: by weight percentage, 75% inert fine particle, 22% water evaporation inhibitor, the tensio-active agent of 3% ultra-low interfacial tension .
[0058] The specific operation is: 3 treatments, each treatment weighs 3.4g of diatomite (inert fine particles) of 300 mesh (i.e. particle size 48 microns), 1g of stearyl alcohol (water evaporation inhibitor, chemically pure), 100 Soluble 101 organosilicon surfactant (provided by Beijing Baihele Company, it is under 25 ℃, one atmospheric pressure condition, and the aqueous solution surface tension when the mass percentage concentration is 0.1% is 20.5mN / m) 0.16g, add distilled water 3643g, 4555g, 5467g, prepared into 800 times liquid, 1000 times liquid, 1200 times liquid. During the preparation, the diatomite, stearyl alcohol, and Bairong 101 silicone surfactant were added into the water sequentially by adding and stirring, an...
Embodiment 3
[0064] Embodiment 3: a kind of physical method and composition of pest control, its composition is as follows: by weight percentage, 72.8% inert fine particle, 25% water evaporation inhibitor, the tensio-active agent of 2% ultra-low interfacial tension , 0.2% soluble salts.
[0065] The specific operation is: 3 treatments, each treatment weighs 3.65g of attapulgite powder (inert fine particles) of 400 mesh (ie particle size 44 microns), 1.25g of n-amyl alcohol (water evaporation inhibitor, chemically pure) and 100 Soluble 102 fluorocarbon surfactant (C 8 f 17 SO 2 NH(CH 2 ) 3 N(CH 2 COO)Na, provided by Beijing Baihele Company, the surface tension of its aqueous solution when the mass percent concentration is 0.1% at 25°C and one atmospheric pressure is 19.8mN / m) 0.1g, KCl (soluble salt, analytically pure) 0.01g (This modification is because it only accounts for 0.2% of composition), add distilled water 4003g, 5005g, 6007g respectively, be mixed with 800 times of liquid, ...
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