1. The genus A. is a member of the Coleoptera family, which occurs 6-7 times a year. Optimum growth and development environment temperature 21 °C -27 °C, relative humidity 80% -100%. In particular, the hatching of eggs requires 100% relative humidity, overlapping generations, larvae damaging underground sites, and adults damaging aboveground sites, mainly in the spring and autumn seasons.
Agricultural control measures: Rational rotation, and non-crucible vegetable rotation can significantly reduce the damage. The re-emerging plots were filled with water for 5-7 days before sowing, drowning the eggs in the soil and reducing the number of insect populations in the field.
Physical control measures: In the early stage of the outbreak, cruciferous scented yellow plates were used to trap and kill adults, with an average of 25-30 acre per acre. The height of suspension was about 5-10 cm above the crops. Special personnel were responsible for management and timely replacement.
Control of chemical agents: Control of adult worms 40% of pesticides used for dispersible acetamiprid (more fierce) 1000 times (15 g/15 kg of water) or 24% of Alfati 750 times (20 ml/mu) spray control. The control larvae were treated with 40% phoxim seed dressing soil (only for soil treatment, and spraying will cause excessive pesticide residues).
2, Bemisia tabaci can occur in the whole growth period of vegetables, occur more than 10 generations a year, the main damage time from April to October. Adults can be male and female reproductive, but also parthenogenesis, overlapping generations. Optimum growth and development of the ambient temperature 25 °C -30 °C, relative humidity of 70%, high reproduction coefficient, survival rate of 80% -90%, serious harm.
Agricultural control measures: Clean up field weeds and stubbles in time and completely kill the insects.
Physical control measures: In the case of low population density of whiteflies, the yellow plates are used for color-induced control. The suspension height is 5-10 cm from the plants, and the density is 25-30 pieces per acre, uniformly staggered in the field. Silver gray film can also be used in facility cultivation to avoid whitefly.
Chemical control: The agent can be sprayed with 40% acetamiprid dispersible granules (more intensive) 2500 times (6g/15kg water) or 25% acrylo 3000x (5g/15kg water). Every 5-7 days continuous application of medication, pay attention to alternate medication.
3. The genus Aphid is of the order Homoptera, which occurs around 20-30 generations in Shanghai and overlaps from generation to generation. Optimum growth and development temperature 16 ~ 25 °C, relative humidity 50% -80%. Occurrence mainly occurs during April-June in spring and September-November in autumn.
Agricultural control measures: Clean up field weeds and stubbles in time and completely kill the insects.
Physical control measures: In the case of low population densities, yellow plates are used for color-induced control. The height of the suspension is 5-10 cm from the plants, and the density is 25-30 pieces per acre, uniformly staggered in the field. Silver gray membranes can also be used to avoid aphids in facility cultivation.
Chemical control: The agent can be sprayed with 40% acetamiprid dispersible granules (more intensive) 2500 times (6g/15kg water) or 25% acrylo 3000x (5g/15kg water). Every 5-7 days continuous application of medication, pay attention to alternate medication.
Agricultural control measures: Rational rotation, and non-crucible vegetable rotation can significantly reduce the damage. The re-emerging plots were filled with water for 5-7 days before sowing, drowning the eggs in the soil and reducing the number of insect populations in the field.
Physical control measures: In the early stage of the outbreak, cruciferous scented yellow plates were used to trap and kill adults, with an average of 25-30 acre per acre. The height of suspension was about 5-10 cm above the crops. Special personnel were responsible for management and timely replacement.
Control of chemical agents: Control of adult worms 40% of pesticides used for dispersible acetamiprid (more fierce) 1000 times (15 g/15 kg of water) or 24% of Alfati 750 times (20 ml/mu) spray control. The control larvae were treated with 40% phoxim seed dressing soil (only for soil treatment, and spraying will cause excessive pesticide residues).
2, Bemisia tabaci can occur in the whole growth period of vegetables, occur more than 10 generations a year, the main damage time from April to October. Adults can be male and female reproductive, but also parthenogenesis, overlapping generations. Optimum growth and development of the ambient temperature 25 °C -30 °C, relative humidity of 70%, high reproduction coefficient, survival rate of 80% -90%, serious harm.
Agricultural control measures: Clean up field weeds and stubbles in time and completely kill the insects.
Physical control measures: In the case of low population density of whiteflies, the yellow plates are used for color-induced control. The suspension height is 5-10 cm from the plants, and the density is 25-30 pieces per acre, uniformly staggered in the field. Silver gray film can also be used in facility cultivation to avoid whitefly.
Chemical control: The agent can be sprayed with 40% acetamiprid dispersible granules (more intensive) 2500 times (6g/15kg water) or 25% acrylo 3000x (5g/15kg water). Every 5-7 days continuous application of medication, pay attention to alternate medication.
3. The genus Aphid is of the order Homoptera, which occurs around 20-30 generations in Shanghai and overlaps from generation to generation. Optimum growth and development temperature 16 ~ 25 °C, relative humidity 50% -80%. Occurrence mainly occurs during April-June in spring and September-November in autumn.
Agricultural control measures: Clean up field weeds and stubbles in time and completely kill the insects.
Physical control measures: In the case of low population densities, yellow plates are used for color-induced control. The height of the suspension is 5-10 cm from the plants, and the density is 25-30 pieces per acre, uniformly staggered in the field. Silver gray membranes can also be used to avoid aphids in facility cultivation.
Chemical control: The agent can be sprayed with 40% acetamiprid dispersible granules (more intensive) 2500 times (6g/15kg water) or 25% acrylo 3000x (5g/15kg water). Every 5-7 days continuous application of medication, pay attention to alternate medication.
elastic rope, ear loop,High Quality elastic rope, ear loop,elastic rope, ear loop Details, CN
Dongguan Huitong Automatic Machinery Technology Co., Ltd , https://www.breezesolution.com