First, choose a sunny day and high temperature time medication. Because the pests have higher feed intake and respiratory intensity when the temperature is higher, the drug is sprayed onto the worm and more drugs are brought into the body, which is beneficial to play a poisonous killing effect.
Second, appropriate increase in the amount of medication. In the winter, if the dosage is applied according to the conventional dosage, the pests often do not die after taking the medicine, so it is necessary to increase the dosage appropriately. The specific dosage should be determined according to the temperature, but generally does not exceed 50% of the conventional dosage. When applying pesticides in winter, water should be added strictly according to the dilution factor. The amount of water should not be increased or decreased at will.
Third, reasonable selection of pesticides suitable for winter application. In general, stomach poisons and contact agents are more affected by temperature. Such as enemy killing, dichlorvos, dimethoate and other pesticides, low temperature will significantly affect its insecticidal effect; and deltamethrin, phoxim, stone sulfur mixture and other pesticides, can still play a better kill at lower temperatures Insect effect. In addition, the herbicide is applied in winter, which shows a much longer effect than after the summer application. After the medication, it is necessary to wait patiently, and generally does not need to re-spray.
Fourth, the priority use of soil pesticides. The advantage of soil pesticides is that they are inexpensive and have the disadvantage of being susceptible to phytotoxicity. However, the fruit trees are resistant to pesticides during the dormant period in winter, and it is economical and effective to control pests with soil pesticides such as Bordeaux mixture and stone sulfur mixture. 5. Pay attention to extending the safety interval of pesticides. When pesticides are applied in winter, the degradation rate of pesticides becomes slower, and the residual period of pesticides in crops is also relatively prolonged. When controlling pests and diseases of vegetable crops in winter, special attention should be paid to prolonging the safety interval of pesticides to ensure safety.
Customized Glass Reactor System
Chemical Glass Reactor manufacturer---Henan Zhongyi Kori Equipment Co.,Ltd
Zhongyi Kori Equipment Factory is manufacturing Glass Reactors ( Single wall glass reactors with stainless steel water oil bath or Heating mantle glass reactors, Double wall layer jacketed glass reactors, Triple layer or three layer jacketed glass reactors ), Vacuum Pump, short path distillations system, Nutsche filters, heating cooling machines
Customized Glass Reactor System including customized glass reactor with heating mantle ,customized glass reactor with stirring paddle blade, customized glass reactor with condenser and collection flask , customized glass reactor with large condenser , customized glass reactor with reflux flask, customized glass reactor with bioreactor glass lid , cutomized glass reactor with rectifying column, customized glass reactor with dual cooling condenser , customized glass reactor with filter at the bottom discharge valve
Destop glass reactor 1l 2l 3l 5l
Chemical glass reactor 10l 20l 30l 50l
Pilot plant scale glass reactor 100l 150l 200l
We are manufacturer of Glass Reactors including Single layer glass reactors, Double wall Layer jacketed glass reactors and Triple layer Jacketed glass reators. As a factory ,we also accept Customized Custom Reactors,Custom Experimenter,Custom Glass Reactor,Customized Chemical Reactor,Glass Lined Custom Reactors,Custom Cylindrical Reactors, custom chemical process reactor.
Custom Reactors,Custom Experimenter,Custom Glass Reactor,Customized Chemical Reactor,Glass Lined Custom Reactors,Custom Cylindrical Reactors, custom chemical process reactor,Lab glass reactors 1l 2l 3l 5l 10l 20l 30l 50l 100l 150l 200l
Zhongyi Kori(Zhengzhou)Equipment Co.,Ltd , https://www.korireactor.com
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