When planting celery, how to deal with small bugs

Celery Pest Control:

1. Aphids. Aphids like to harm the leaf back and tender stems of a variety of vegetables, the fecundity is very strong, once it occurs, the general pesticide is difficult to completely **, so it should be cleaned up in the field, the use of insect-proof nets, yellow plate trapping and pesticide prevention and control go hand in hand. Yellow plate aphid:

Generally, every 30-50 square meters of a piece, ** cheap, the effect is better; Chemical control: with 25% Actay.

5000 times of water disperse particles or 1500 times of 10% imidacloprid wettable powder is sprayed once every 6-7 days, 2-3 times in a row.

2. Mole crickets. Use poison bait to prevent and control. Bait (grain, wheat bran.

bean cake, cottonseed cake or corn kernels) 5 kg stir-fried until fragrant, then with 90% trichlorfon.

Crystals 30 times the kilogram of liquid, mix well, mix moisture for the degree. Apply kg to 2 kg per mu and sprinkle in the evening.

3. Root-knot nematode disease: the roots of celery are damaged, and nodular-like root knots of different sizes are produced on lateral roots and fibrous roots, and the plants grow poorly and are short. Under the condition that the soil temperature is 20-30 and the soil moisture is 40-70%, nematodes reproduce quickly and are easy to accumulate in large quantities in the soil.

Prevention and control methods: (1) Clean the farm, completely remove the remnants and stumps of diseased plants on the stubble, and bury or burn them deeply. (2) Turn the soil 25 cm deeply, or 30 cm from the soil, and apply decomposed organic fertilizer without pathogens.

3) Before sowing or transplanting, treat the soil with 10% Yishufeng granules 1000 times; At the beginning of the disease, 4000-6000 times of acetisol EC or 50% phosphine should be used.

Emulsifiable concentrate 1000 times liquid irrigation for control.

To get a pesticide, go to the pesticide store and ask the owner.

Summary. 1. Chemical control.

Greasy insects are aphids, and celery raw greasy insects can be sprayed with 2000-3000 times of 50% aphid fog wettable powder, 2000 times of 20% quick-kill butadiene (fenmethrin) emulsifiable concentrate, and 2000 times of 70% aphidzone wettable powder. After the application of pesticides, be sure to check the control effect, if the desired effect is not achieved, first recall whether the spraying is subtle and thoughtful, if there is no problem in the spraying method, then you should consider choosing another agent or appropriately increasing the concentration of spraying.

How to deal with greasy insects when planting celery.

1. Chemical control of greasy insects, that is, aphids, celery raw greasy insects can be treated with 50% aphid fog wettable powder 2000-3000 times, 20% rapid killing butamine (fenpermethrin) emulsifiable concentrate 2000 times, 70% aphid pine can be sprayed with 2000 times of wet powder. After the application of the pesticide must be checked Xun Pi Zheng check the prevention and control effect, if the desired effect can not be achieved, first recall whether the spraying is subtle and thoughtful, if the grip code is no problem in the spraying method, then you should consider another choice of agent or appropriately increase the concentration of spraying.

2, physical fat to cure the early yellow plate booby-trap, sensitive people can use the aphid's yellowing bridge potato, set up a yellow board in the field, the 1 meter specification of fiberboard or cardboard painted yellow, and then on the board coated with No. 10 oil, set up 32-34 pieces per acre, 7-10 days to recoat the oil, the effect is obvious.

3. Agricultural prevention and control should clean up the countryside in a timely manner, remove weeds, remove residues, dispose of diseased and insect seedlings, and remove old leaves in combination with cultivating.