What pesticides are used for sweet potato insect control, and what pesticides are used for insects i

Yijianing China Sweet Potato Industry Service Center.

Sweet potatoes are susceptible to underground pests, forming insect paths, underground pests are becoming more and more prevalent, which has a great impact on sweet potato production, especially on the yield and quality of sweet potatoes is very serious, so that sweet potatoes rot, reduce quality, can not be eaten and processed when serious, there are many kinds of underground pests, mainly grubs, mole crickets, ground tigers, needleworms, etc.

Prevention and control methods. Agricultural control.

1. Crop rotation is adopted.

2. The autumn and winter plough is deeply turned.

3. Timely irrigation.

Chemical control. 1. Field sprinkling: Yijianing 3% phosphine granules, the dosage per mu is 5-10 kg, combined with chemical fertilizer application, and the application is uniform.

2. Dip the roots of potato seedlings before planting: soak the base of the seedlings for 5-10 cm with 5 times of chlorpyrifos microcapsule suspension with Yijianing for 5 minutes. Or mix 50 times with water and add fine soil and mud into a slurry to dip the roots for use.

The combination of the two methods is most effective and can prevent pests during the whole growth period.

3. If it is a nematode, it should be controlled with thiazolephos.

Precautions. Do a good job of personal safety protection during the application of the drug, and wear gloves and masks. After sprinkling the agent, turn it into the soil in time, and do not expose it to the sun, so as not to affect the effective period of the agent.

High-efficiency chlorofluorocyanide polyester liquid or chlorpyrifos can be used.

Avermectin or chlorpyrifos can be used.

Abamectin, high-efficiency chlorofluorocyanide polyester and other pest control solutions are used alternately.

Spraying with avermectin mixed with water can be effectively controlled.

Insect infestation on sweet potato leaves is controlled with avermectin.

Use azadirachtin or rotenone for prevention and control, spray 1 time every 10 days, and spray 2 to 3 times in a row!

Cotton red spiders, adults, larvae and nymphs will bite the tissues on the leaves, suck the sap, and small white spots appear on the affected area, and then turn red, dry and fall off.

1) Agricultural control measures, eradicate weeds on ridges, roadsides and fields, and carry out winter plowing and winter irrigation in potato areas to eliminate insect sources. Pay attention to crop rotation and stubble, and avoid intercropping sweet potatoes with the preferred host of cotton red spider. Natural enemies such as carnivorous lacewings, carnivorous thrips, small-flowered bugs, big-eyed cicada bugs, and ladybugs can be used for control.

2) Pharmaceutical control measures, in the early stage of occurrence, you can choose to use 5% nisolone (thiobenone) 1000 times liquid, 20% deltamethrin (fenatri) 2000 3000 times liquid (and treatment of Spodoptera litura) or avermectin EC 4000 6000 times liquid sprayed on the back of the leaf, spray once every 7 days, spray 3 times, pay attention to alternate medication.

Summary. Kiss, you can spray with medicinal solution, with pine moth EC, chlorpyrifos granules, diaziphos EC or phosphine EC mixed with water, spray or irrigate the roots directly.

Kiss, you can spray with medicated solution, with pine molester EC, chlorpyrifos granules, diaziphos EC or phosphine manuscript EC mixed with water, Bi Jingyu directly sprayed or irrigated roots.

1) Trapping and killing adults: 6 and 7 months is the peak period of adult occurrence, you can use the chemotaxis of adults, use sexual attractants to trap and kill adults, and good companionship can greatly reduce the mating and oviposition of adults, reduce the harm of Cheng socks in autumn, and the investment is small and the pollution is small. The prevention and control effect is good.

2) Soil treatment: before sweet potato planting, 250 300g of 4 thiamethoxam granules can be used, mixed evenly with 50 kg of organic fertilizer, sprinkled along the ridge, applied near the rhizosphere of seedlings, thiamethoxam has good systemic conductivity, is not easy to produce resistance, has good stability in the soil, and has an effective period of about 90 days, which can protect sweet potato seedlings from grubs for a long time. The operation of megabend is simple, the control effect is good, and the harm of grubs can be greatly reduced.

Hello boss with the town, potato underground pest control chlorpyrifos octathion microcapsule suspension sublimation auspicious Yongle underground pest control grub needleworm 30% chlorpyrifos octathion microcapsule suspension specifications are carefully prepared|; 500ml*20 bottles of this product is a new type of underground pest control product, mainly used for the prevention and control of sweet potato, potato, peanut, yam, ginger, sugarcane and other underground pests, using microcapsule technology, prolonging the effective period. It is effective against various underground pests such as grubs, needleworms, mole crickets, etc. It can be used in the production of green organic food.

Application: Spray directly on the soil surface before soil preparation. Dosage of action:

500-1500ml mu (667 square meters).

Hello, chemical control, during the growth of sweet potato, sweet potato swelling period, is the period when more water is needed, you can use the help of irrigation to judge the forest water, the sweet potato root is filled with 1000 times of matrine water, which has a good control effect. Field application: Yijianing 3% phoxanthion granules or 10% chlorpyrifos granules, the dosage per mu is 5-10 kg, combined with chemical fertilizer application, sprinkled and applied evenly.

Acupuncture: Yijianing 3% phoxanthion granules or 10% chlorpyrifos granules per mu dosage 5-10 kg. Dip the roots of potato seedlings before planting:

Soak the base of the seedlings with 5 times of 25% chlorpyrifos microcapsule suspension for 5-10 cm for 5 min. If my answer is helpful to you, please give a thumbs up (in the lower left corner), I look forward to your like, your efforts are very important to me, and your support is also the motivation for my progress. Finally, I wish you good health and a good mood! 3