Blind bugs and a variety of flies are the main pests of sunflower seedlings, pests are concentrated at the base of sunflower stems and heart leaves during sunflower emergence, sucking crop juice and biting heart leaves, causing serious impacts on the growth and development of sunflower plants, and some even die. At present, sunflowers are about to enter the seedling stage, the plant is small, the resistance to insect pests is weak, and once the damage loss is serious. With the increase of sunflower planting area in our county, the harm caused by blind bugs and flies has increased year by year. It is recommended that the township and town governments organize peasant households to do a good job in self-examination of the fields and do a good job in prevention and control. The prevention and control methods are as follows:
1. Foliar spraying is mainly based on chemical drugs. When spraying the liquid, it must be sprayed to the front and back sides of the leaf, especially the damaged leaf surface, the stem up and down and the cracks around the ground should be sprayed with the liquid, the amount of liquid per mu of liquid reaches 80-100 pounds, and it is necessary to prevent and control it together, and if necessary, to prevent and control again, so as to achieve joint prevention and treatment;
2, the prevention and control time should emphasize a "early" word, that is, to accompany the sunflower seedlings, find that the blind bugs occur sporadically or before the occurrence of spray prevention, to sunny weather 5-7 pm the best, prevention and treatment drugs should be rotated to prevent drug resistance. When spraying, you should first hit the periphery, turn the circle to hit inside, concentrate on annihilation, and prevent migration and flight;
3. Seedling stage topping (growth point), budding period;
4. It is necessary to choose an aspiratory, fumigatory, touch-killing antidote or compound dosage form. Such as Mala octylthion, fiprothani, cyanogen propyl bromide, chlorpyrifos, chlorpyrifos, cypermethrin, avermectin, etc. (the dosage is used in accordance with the product instructions, and wear protective clothing, pay attention to the safety of medication).
Technical consulting unit: Wuchuan County Plant Protection Plant Inspection Station Tel: 8822552
