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2, insecticide: 10% cypermethrin EC 2-3 days, 2.5% bromomethrin 2 days, 2.5% Kung Fu emulsifiable oil 7 days, 5% Fuling emulsifiable oil for 3 days, 5% anti-Converse WP 6 days , 1.8% Aifuding cream for 7 days, 10% killing enemy cream for 3 days, 40.7% lesbian cream for 7 days, 20% for sweeping emulsifiable concentrate for 3 days, 20% for fenvalerate EC for 5 days, 35% volt Phosphorus killing for 7 days, 20% fenpropathrin emulsifiable concentrate for 3 days, 10% phoricily emulsifiable concentrate for 7 days, 25% quetiapine emulsifiable concentrate for 9 days, 50% anti-Converse WP for 6 days, more than 5% Bao WP can be used for 7 days.
3, acaricide: 50% bromo oxime ester emulsifiable oil for 14 days, 50% tork WP for 7 days.
Second, the use of pesticides in vegetables should pay attention to matters 1, the use of low-toxic pesticides. With the continuous development of the chemical industry, there are more and more kinds of pesticides. There are many kinds of pesticides to choose from to control a certain pest and disease. For the safety of humans and animals, under the premise of being able to control pests and diseases, low-toxic, low-residue pesticides should be selected.
2. The concentration of the drug should be low. When the selected pesticide variety is determined, the lower limit of the range of efficacy should be selected when formulating the agent. Because the low concentration of the drug solution is applied, it is for the safety of humans and animals, the cost is reduced, and the resistance of the residual pests can be prevented, thereby prolonging the service life of the pesticide.
3. Various pesticides are used interchangeably. Due to the wide variety of pests and diseases in vegetable fields, the development speed is fast and the application is frequent. If the same agent is administered continuously, the subject will develop resistance to the agent, resulting in a decrease in efficacy. To this end, some different varieties of drugs with the same efficacy should be used interchangeably to avoid the emergence of resistance.
4, medication should pay attention to time. The so-called time of medication has two meanings: First, when the pests occur, seize the opportunity to use the medicine in time, the sooner the better, so as not to miss the time to produce the best efficacy; the second is to use the growth period of the vegetables according to the growth period of the vegetables. Adjust the concentration and quantity of pesticides because the requirements for the concentration and quantity of the liquid are different for different growth periods of vegetables.
First, the safety interval of commonly used pesticides on vegetables 1, fungicide: 75% chlorothalonil WP 7 days, 77% can kill WP 3-5 days, 50% phlegm wettable powder 4 7 days, 70% methyl thiophanate WP 5-7 days, 50% Nongli Ling WP 4-5 days, 58% toxic Mn-Zn WP 2-3 days, 64% anti-virus 矾Wet powder for 3-4 days.
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