How to use the insecticide chlorpyrifos EC?

What is the effect of insecticide chlorpyrifos EC? How do I use it? What is there to pay attention to? Netizens are also asked to help guide the insecticide chlorpyrifos EC has contact, stomach poison and fumigation effects on pests, especially on the control of brown planthopper. The farming network has sorted out its characteristics and matters needing attention, which are listed below for netizens' reference. The characteristics of chlorpyrifos EC: 1. Chlorpyrifos generally have EC, granules, microemulsions and other dosage forms. Among them, the content of 40.7% EC (Tongshun and Lesbon) is the highest; most of them are 40% EC (Xinnongbao, chlorpyrifos, Bole). The effect is good; 5% of the granules are mainly used for the control of underground pests in vegetables and melons. It is an excellent variety to replace the highly toxic pesticide 3% furan granules; 30% microemulsion is being gradually promoted. 2. Chlorpyrifos is a toxic pesticide, which is highly toxic to fish and aquatic organisms and toxic to bees. The residual period on leaves is generally 5-7 days, and the residual period in soil is longer. It is not harmful to most crops, but it should be used with caution when it is sensitive to tobacco and tomato foliar spray. 3. For the peak incubation period of rice brown planthopper eggs, 25% buprofezin plus 40% or 40.7% chlorpyrifos EC (Tongshun, Xinnongbao, Bole, Lesbon) 80-100 ml / mu, or 5% fipronil 30-40 ml / mu plus 40%, 40.7% chlorpyrifos EC 80-100 ml / mu spray. When applying pesticide, the 2-3 cm water layer should be maintained in the field, and a stretcher sprayer should be used to spray the rice fields where the density of the paddy field is high and it is difficult to spray the solution to the base of rice. To rice leaf roller and thrips, 80-120 ml per mu of chlorpyrifos EC was used to spray fine spray; to Plutella xylostella, Pieris rapae and soybean pests, 80-150 ml per mu of chlorpyrifos EC was used. For pests such as citrus leaf miner, red spider and tea inchworm, the dilution concentration of chlorpyrifos EC is 1000-2000 times. Matters needing attention in the use of chlorpyrifos EC: 1. In order to improve the control effect of brown planthopper, chlorpyrifos can be mixed with buprofezin and Regent to improve the contact, stomach toxicity and fumigation of brown planthopper pests. 2. In the later stage of rice application, we should pay more attention to the sufficient amount of spraying, and in the case of the recommended dosage per mu, the dosage should increase or decrease with the spray solution. In the later stage of rice, the upper limit of the dosage should be more than 50 liters per mu for manual sprayers and more than 300 litres per mu for stretcher sprayers. 3. Abide by the rules for the safe use of pesticides and do a good job in labor protection. 4. The mixed planting area of grain and mulberry should be far away from the sericulture area to avoid the pollution of mulberry leaves and silkworm poisoning in rice fields. Click to get more pesticide application techniques