Recommendations for the control of crickets in sesame fields

Crickets are also called crickets. There are many types of occurrences, and the main hazards are multi-yi head crickets, white-beaked eyebrow crickets and oil gourds.

Crickets occur in one generation per year, from May to August as the nymph pest period, september to October as the adult pest period, like to be active at night to eat, eat miscellaneous. The main characteristics are harmful; the newly emerged seedlings are eaten and the thin stems are bitten short, resulting in missing seedlings and ridges, and even the whole field is destroyed and replanted; the stems, leaves and fruits are nibbled at the adult stage.

Crickets burrow, often inhabiting the surface, under masonry, soil burrows, and grass.

Prevention and control methods: 1, agricultural control timely removal of weeds in the field, weeds and tonics removed from the field are piled on the ground; wheat stubble sesame seeds, do not pile wheat straw and wheat bran in the field to prevent crickets from breeding and hiding. 2, pile grass booby traps take advantage of the habit of crickets like to inhabit under the thin layer of grass piles, and in the evening according to 5 meters 1 row, 3 meters 1 pair evenly in the field to visit the thickness of 10-20 cm small grass piles, the next morning to hunt. If you put some poisonous bait under the grass pile or use a wooden stick to salute 3-5 cm to form a cave, you can improve the control effect. 3, poisonous bait booby trap with 60-70 ° C warm water to dissolve 90% of the crystal enemy insects into 30 times the liquid, take 100 ml of medicinal liquid per acre, evenly mixed on 5 kg of fried wheat bran, rice bran or cake powder, mix with the right amount of water to fully mix well, in the evening to apply every 1-2 meters. Or make fresh grass poison bait; dilute with 50% octyl thiophos 50 ml with water, or mix 20-25 kg of fresh grass with 90% crystalline diphthalmix 800 times liquid, and in the evening according to 5 meters 1 row, 3 meters 1 pile evenly placed in the sky after 6-7 cm of small grass piles for booby traps. 4. Pharmaceutical control Spray sesame base stem and surrounding soil with 48% xerotic (Lesben) emulsion 2000 times liquid or 50% octyl thiophos 1000 times liquid before evening. You can also choose a net silkworm and use it according to the recommended dosage of the book. Crickets are highly active, and the prevention and control should be blockaded, that is, starting from the surrounding area of the field and advancing to the center of the field, so that the fleeing crickets can also be poisoned and die. The wheat straw and wheat bran piled up on the edge of the ground should also be fully sprayed on the upper and lower layers to poison the hidden crickets.