African cricket

Scientific name Gryllotalpa africana Palisot de Beauvois Orthoptera, Polygonaceae. Alias ​​Koa, Lara, Tetra, earth dogs, dogs, water dogs. Seeds and seedlings sown by the host vegetable and various types of crops. Field recognition of adult and nymphs are all active in the soil. The seeds or shoots sown or the seedlings are killed and the roots of the victims are in a mess. As a result of earthworm activity, many layers of tunnels were cut into the topsoil and the roots of the seedlings were removed from the soil. As a result, the seedlings were killed due to water loss, and the seedlings were severely cut off. In the greenhouse, due to the high temperatures and early activities, combined with seedlings, the damage is even heavier. Morphological characteristics Adult body length 30 - 35 mm, gray-brown, lighter abdomen, full body fine hair. Head conical, antennae filamentous. The pronotum is oval in shape with a dark red long heart-shaped depression in the middle. The forewings are gray-brown and short, reaching only the middle of the abdomen and the hind wings. They are more K than the ends of the abdomen. At the end of the abdomen with 1 pair of tails. The forefoot is for excavation of the foot. There are 4 points on the back of the posterior aspect of the hind foot. The law of occurrence occurred in the northern region for 2 generations in 1 year and 1 generation in the south for adult or nymphs to live underground. After Ching Ming rose to surface activities, in the hole can be lifted a small virtual heap. The period from the beginning of May to the middle of June is the most active period of crickets, and it is also the peak period of the first attack. From late June to late August, the weather is hot and underground, and June to July are the peak of spawning. In September, the temperature dropped, and once again rose to the surface, forming a second peak of damage. After mid-October, people drilled in deep soil to overwinter. Night-time out, to 9-11 at night the most active, especially in high temperatures, high humidity, hot nights, a large number of unearthed activities. In early spring or late autumn, because of the cool climate, it is only active on the topsoil, and it does not reach the ground. It often dive to the deep soil on a hot noon. Cookware has a phototaxis property and has strong tropism for sweet substances such as semi-ripe millet, sauteed bean cake, wheat bran, and horse manure. Both nymphs and nymphs are soft and moist loam or sandy loam. The water content of 20 cm over the topsoil is more than 20%, and when it is less than 15%, the activities are weakened. When the air temperature is 12.5 to 19.8°C, and the soil temperature is 20 to 20 centimeters, 15.2 to 19.9°C, it is most suitable for earthworms. When the temperature is too high or too low, it is submerged in deep soil. Prevention and control methods The current prevention and control indicators: 0.3 head/meter 2 is light, 0.3-0.5 head/meter is moderate, and 0.5 head/meter 2 is serious. In addition, according to the characteristics of the nighttime excavation activities and the strong tendency of sweet substances, the method of applying bait baits can be used for prevention and control: first stir the bait (grain, wheat bran, bean cake, cottonseed cake or corn crumbs) to 5 kg. Fragrant, and then use 90% trichlorfon 30 times liquid 0.15 kilograms mix well, add appropriate amount of water, mix the tide for the degree, apply 1.5 to 2.5 kilograms per acre, in the evening when no wind and hot stuffing best effect . Can also be used 40% Dimethoate EC 10 times or other insecticide mixed bait.

Hot Pot Seasoning is used to eat when the dip material, there are hemp, spicy, sour, sweet; can be modulated according to their taste, one person and one disc. The spices used in the hotpot include salt, monosodium glutamate, chicken powder, bean paste, white wine, soybean meal, glutinous rice, and spices. Hotpot bowls include sesame sauce, garlic, fermented bean curd, sesame oil, red oil, leek, soy sauce, seafood sauce, millet pepper, spicy sauce, pepper, sesame and so on. Important spices are: 1. Chili sauce, red pepper 100Kg, salt 15Kg. 2. Chili oil. 3. Dry chili peppers. 4. Rapeseed oil. 5. Butter.

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