With the arrival of spring, there are a lot of lawn pests, especially underground pests, which brought great difficulties in turf management, here to introduce the lawn underground pests occurrence regularity and frequency trembler lamps etc. comprehensive prevention and control technology of green.
Common pests
Grub
The so-called to funnel like grub grub worm, etc., is known as the Coleoptera, Scarabaeoidea larvae. For a large group of underground pest species, the most widely distributed, most harmful. The most common are the main types of Holotrichia oblita, Scarabaeoidae, parallcl. Grub feeding is very complex, the main damage of wheat, corn and sorghum, potato, beans, peanuts, sugar beet, cotton and other crops and vegetables, fruit trees, tree seeds, seedlings and roots. Fresh roots and stems and seeds or seedlings at the mouth bite, bite neatly. Not only caused production, and easy to cause bacterial infection. On the evening of 20 adult unearthed activities, 21 - 22 activities, then gradually reduced. Phototaxis weak, larvae were generally light trap to only field insect unearthed amount of about 0.2%. A false alarm is fatal, vibration or to feign death. Fly is weak, the scope of activities generally dominated by insect source, mainly concentrated in the edge of the field, or other non farmland Mizobe head. The blade like wax, poplar, soybean, peanut, sweet potato and other crops and trees, and lay eggs in these trees near field or in fast crop fields. Single female fecundity 32 - 188 grain, average 102 grain, powder produced in the soil 6 - 15 cm deep, each spawning 3 - 5 tablets, much more than 10 tablets, close to each other, a core distribution in the field. The larvae have 3 instars, all live in the soil, with the seasons change in soil temperature and dive shift. In the 3 instar duration of the longest, the most serious harmfulness. Is an important underground pest grub, all because of the climate, the soil is different in different types of grassland and turf, species occurrence is different, generally the same area often mixed occurrence. The main forage grass Sultan, Leymus chinensis, Elymus, Setaria, Timothy, oat, bluegrass, ryegrass, tall fescue, bermudagrass, Agrostis, alfalfa, sainfoin, clover etc.. Adult and larva can make damage, and to the most serious damage. The larvae in the soil habitat, feeding on Seed Germination and sprout deficiency caused by biting; rhizome, root, the plants withered, and the wound is easy to bacterium, cause plant diseases.
Wireworms
Wireworm wireworm commonly known as insects, worms, copper wire is insect, commonly known as adult beetle, Coleoptera, Elateridae larvae known as. China recorded 600 - 700, but the the Xinjiang Uygur Autonomous Region Yili common type mainly 4 kinds, namely the main species and damage forage have wireworm, Agriotes, wide back wireworm, melanotus caudex. The most serious damage to wireworm, is the dominant species in the class of wireworms. Damage characteristics and damage of wireworms: wireworm diet is very complex, the adult beetle on the part of the event is not a long time, can only eat some cereal and legume crop leaves, there is no serious harm. The larvae living in the soil, the main damage of forage grasses, with Timothy Alopecurus, Bromus inermis, fox grass, chicken feet grass and legume alfalfa, clover etc.. The larvae can eat seeds, food and endosperm and cannot germinate, as has been the emergence of underground parts can damage roots, root or stem, the seedlings withered. The 1 generation of general wireworm 3 years, 2 years, a few 4 - 5 years or longer to complete the 1 generation. Adults and larvae overwinter in the soil, 15 - 40 cm depth in general, the depth of about 100 cm. At the beginning of March 10 cm soil temperature of overwintering adults around 10 degrees at the start of March unearthed activities, from mid April to early 10, when soil temperature is stable at 10 to 15 degrees Celsius when the peak of activity. The spawning period from late March to early June, the eggs of 31 - 59D, average 42d, the middle of May, as the eggs hatching hatching larva oversummer dive to the end of June. For 9 months, beginning in late autumn, and rise to the surface soil, damage to the middle of November, at the beginning of winter, deep soil. Second years at the beginning of March, overwintering larvae began to rise, by late March to early May the most important. After the summer, autumn winter damage. The larval stage lasted for about 150D, until third years from 8 to September, mature larvae drill into 15 - 20 cm soil in the soil to pupate. The pupal stage 10 - 20d, the beginning of September to adult eclosion. The adults had not unearthed, still in the soil compartment perched motionless, fourth years before the spring mating, spawning unearthed, eggs from 3 to 7 cm deep in the soil, the average female eggs more than 200 tablets, up to more than 400 grains of adult life is about 220d.
Tiger
Tiger tiger Lepidoptera, noctuidae. Name, silkworm, cutworm grub etc.. Noctuidae larvae often live in the ground, damage the roots, collectively known as the tiger. A lot of tiger species, mainly black cutworm, Agrotis, white tiger etc.. The little tiger belongs to the pest, the most widely distributed, almost throughout the country, the most serious harmfulness. Yellow tiger distribution is also quite common in my state around the more. The main damage in the steppe zone of low rainfall, such as Yining County, Huocheng County, Gongliu county often cause serious harm. White tiger is the main damage types of Turks County, Zhaosu county and other places. Tiger is a polyphagous pest infestation in forage and turf, can also damage cotton, corn, and other 100 kinds of plant small. All the first generation larvae forage and turf, resulting in sprout deficiency, even destroy seedling replanting.
Mole cricket
Toku Ko, commonly known as Lalagu Gryllotalpa Gryllotalpa, clam Mantis species, Gryllotalpidae. About 40 of the world, China's record of 6. Mole cricket is the most active underground pests, nymphs were severely damaged. Bite of various grass seeds and seedlings was particularly like eating seed, causing serious sprout deficiency; also eat roots and stems, into a mess like grilled or filiform, the seedling growth of bad or wilting or death. Especially good at the soil surface cricket crawl, exchanges around, tunnels, cause the seeds can not germinate overhead, seedling root hanging water withered and died. "Not afraid of cricket bite, but cricket run" is the truth. Gu Miao, the most afraid of the wheat cricket channeling, channeling is a large, very serious loss.
Cricket life history is long, 1 to 3 years to complete the 1 generation, with adults and nymphs in soil in winter.
Oriental mole: in Yili 1 generation 2 years beginning in May; overwintering adult spawning, hatching in 6 - July; after 15 28d incubation of eggs. To fall to 4 - 7 age nymphal development, deep soil in winter. Second year spring recovery activities, damage to August began to grow to adults. A total of 9 instar nymphs, more than 400d. The emergence of adult spawning a few, most of the winter to third years before spawning. The adult life of 8 - 12 months.
Leave the cave cricket at night, feeding on stem or leaf, stem and leaf will sometimes snap dragged back to the cave to eat. May at any time on grassroots cricket. The main surface at the bottom, with the food with the forward, can be a piece of grass root Qi snapped, causing a large area of grass death. Almost no serious grass roots, easy because of staff activities, golf carts and other recreational activities cause further damage. But also because of the mole cricket on the soil surface under the building broad points caused serious harm. The grass roots construction points of soil separation (evulsing), so that the root stem dead, dead grass. In the new plant (especially breeding stolons) or newly sown grass nest, harm caused by such. Is the survival of the transplanted to turf cricket. The golf ball hole area on the grass to acupuncture soil surface bumps, effect of rolling ball speed and direction.
Comprehensive prevention and control technology of green:
1, first select the selection of resistant varieties containing endophytic fungi varieties, improve the resistance to insect pests.
Block 2, soil treatment for seeding lawn, with soil disinfectant for soil treatment, can reduce insect pests.
3, the use of physical control, pest phototaxis, in the adult peak period of application of Jiaduo Frequency Vibration Insecticidal lamp Trap.Every 30 to 50 acres set up a lamp, can significantly reduce the population density.
4, artificial control with elm, poplar, locust tree branches tied to, immersed in 40% Omethoate EC 30 times liquid or 40% monocrotophos diluted 50 times within 10 to 15 hours per 10 to 15, in the evening in the lawn, next morning back, can kill Jin Guijia, tiger.
5, the amount of the tiger is not the case, with the hand gently killed seedlings around the topsoil, you can find the latent larvae, capture in the morning, always adhere to the 10 to 15 days, you can receive a significant effect.
6, the tiger has a strong response to Paulownia Leaves, available Paulownia Leaves trapping larvae. Picking fresh Paulownia Leaves, old leaves, leaf as well, soaked with water, with 50 to 70 per acre grass leaf, the evening on the grass, leaves down, the next morning the artificial capture leaves larvae.
7, sweet and sour sweet and sour liquid can induce fluid trapping is good for the tigers and adult armyworm moth. Sweet and sour liquid formula is: brown sugar 1 copies, 3 copies, 10 copies of vinegar, water soluble trichlorfon 0.3, mix well serve, filled in a small basin or tray, in a sunny evening on the lawn, and will recover after dawn, a moth in deep buried basin. In order to improve the killing effect of 10, replaced every 15 days once a day.
