Affected by the weather and the population base of insects last year, this year the occurrence of Heliothis armigera was heavy, and due to the resistance of cotton bollworm, it was particularly difficult to prevent and control. The common organophosphorus and pyrethroids had poor control effect, and had many times to fight drugs with low cost performance. For this reason, it is necessary to use a chemical agent that has a good effect and a long duration of efficacy.
First, master the best time to use drugs, egg incubation period of drug use, cotton bollworm larvae in the 4 days after hatching the most sensitive to pesticides, after drug resistance.
Second, the use of special effects and efficient pharmaceutical agents to control the effect of cotton bollworm is better than the German Bayer company produced rice, its main features are: 1 broad spectrum insecticide. Containing two components, flubendiamide provides excellent control of lepidopteran pests such as the cotton bollworm, beet armyworm, and corn borer; 3.3% abamectin is able to control red spiders. 2 touch killing, stomach poison double, fast effect. The pests contacted the rice for 2 hours to stop feeding and died 2 days later; the pests fed leaves after spraying and died 4 to 6 days later. 3 high activity and low toxicity. Mu 30 ml dose, very low toxicity. 4 long duration of validity. The rice paddle persists for a period of 25 to 30 days. It really takes only one generation of insecticide to spray a generation of insects, which greatly saves labor. Note: Add Ciba's Ciba effect at the time of spraying to improve water quality, improve efficacy, and reduce spray volume).
Third, the correct application site and the time of spraying the cotton bollworm cold like heat, generally at low temperatures climb to the leaves, the temperature climbed back to buds. Therefore, the best medication time is before 9:30 in the morning or after 5:30 in the afternoon so that most of the bollworms will be drugged, thereby improving the efficacy of the drug. When spraying, all the spray should be sprayed thoroughly to ensure two sprayers per mu. Water, and to focus on the young bud tender medicine.
First, master the best time to use drugs, egg incubation period of drug use, cotton bollworm larvae in the 4 days after hatching the most sensitive to pesticides, after drug resistance.
Second, the use of special effects and efficient pharmaceutical agents to control the effect of cotton bollworm is better than the German Bayer company produced rice, its main features are: 1 broad spectrum insecticide. Containing two components, flubendiamide provides excellent control of lepidopteran pests such as the cotton bollworm, beet armyworm, and corn borer; 3.3% abamectin is able to control red spiders. 2 touch killing, stomach poison double, fast effect. The pests contacted the rice for 2 hours to stop feeding and died 2 days later; the pests fed leaves after spraying and died 4 to 6 days later. 3 high activity and low toxicity. Mu 30 ml dose, very low toxicity. 4 long duration of validity. The rice paddle persists for a period of 25 to 30 days. It really takes only one generation of insecticide to spray a generation of insects, which greatly saves labor. Note: Add Ciba's Ciba effect at the time of spraying to improve water quality, improve efficacy, and reduce spray volume).
Third, the correct application site and the time of spraying the cotton bollworm cold like heat, generally at low temperatures climb to the leaves, the temperature climbed back to buds. Therefore, the best medication time is before 9:30 in the morning or after 5:30 in the afternoon so that most of the bollworms will be drugged, thereby improving the efficacy of the drug. When spraying, all the spray should be sprayed thoroughly to ensure two sprayers per mu. Water, and to focus on the young bud tender medicine.
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