According to the monitoring of the plant protection station in Huaibei area, the adult larvae of the second generation of this year have a long period of growth and high moth in parts of Huaibei, and they have encountered more rainy weather during the spawning period, which is conducive to the survival of larvae hatching. At present, many places are in the beginning of the young larvae, which is consistent with the vulnerable seedlings of summer maize in most parts of Huaibei. In addition, there are more rains in the near future. If it is not timely prevented and controlled, it is very likely to cause damage to summer corn. The Huaibei area must increase its monitoring and investigation efforts and do a good job in prevention and control in a timely manner. 1 The occurrence of Noctuidae First, the wintering adults become early. According to the monitoring of the Fengxian Regional Station, the adult larvae of the larvae were found under the lights on April 2, and the initial period was earlier than normal; the peak period was on June 10, 4 days earlier than the previous year. Second, the first generation of adult worms is high. Under the forecasting light of Fengxian County, the adult of the 26th generation increased rapidly. On June 8th, the number of single-light traps was 149. As of June 22, the cumulative amount of single-light mops has reached 1,140, ​​an increase of 48% over the same period of the previous year; On the 8th of the month, there was a moth-like peak. The peak moth was 40. As of June 19, the cumulative number of moths per single lamp was 281, which was higher than normal. Third, the hatching period of the second generation larvae coincides with the seedling stage. Summer maize in most parts of Huaibei was planted in mid-June, and it is currently in the seedling stage, which is highly consistent with the larvae of the larvae of the larvae, and is suitable for feeding pests. Since mid-June this year, the rainwater in the Huanghuai area has been significantly more than last year, and it is more favorable for the hatching of the two-pointed moth. According to the forecast of the meteorological department, the rainfall in the Huanghuai area will be more than normal in the future, and the field humidity will be large. It is conducive to the harm of the two-pointed moth, and it is expected that some areas in Huaibei will be heavily biased. 2 Prevention and control opinions All localities should aim at ensuring the safety of summer maize growth, based on agricultural prevention and control, and chemical prevention and control as the key, and focus on grasping the prevention and control of the second generation of larvae. The first is to promote agricultural measures to reduce the base. It is the most effective and economical way to control the larvae and clean the garden. All localities should take timely measures to remove the wheat straw, wheat bran and other coverings, destroy the suitable environment of the larvae, and deteriorate the larvae. Habitat, reduce harm. The second is to carry out chemical control to control the hazards. Master the larvae of the larvae of the larvae before the 7-leaf stage of the corn, use the chlorantraniliprole and other agents, spray the liquid on the water ridge, and protect the larvae by applying the medicine along the rhizosphere of the corn. It can also be made into poison baits or toxic soils. In the evening, it is applied around the roots of the corn through the clear ridges. The toxic soil needs to keep a certain distance from the corn seedlings to block the larvae damage. For the application of field containing nicosulfuron-methyl herbicide, it is strictly forbidden to use organophosphorus pesticides after seedlings to prevent phytotoxicity. More pesticide knowledge, please pay attention to China Pesticide Network
Steel plate mesh is refers to: sheet metal through a special mechanical (steel mesh punching and shearing machine) after processing, the mesh condition for forming a material object.
Weaving and characteristics:
Made of steel plate after stamping, stretching;Divided into steel plate mesh and stainless steel net;Beautiful and easy, strong and durable.
Also known as metal mesh, diamond wire mesh, iron wire mesh, metal expansion net, heavy steel plate net, pedal mesh, perforated plate 'aluminum plate mesh, stainless steel net, granary, antenna wire mesh, filter mesh, acoustics meshes, etc.
1.In bulk 2.Each wooden case is lined with waterproof paper
3. waterproof paper, waterproof cloth + pallet
4.Roll l with shrink film and woven bag.
Benifit
1.Continuity--the mesh is formed from a single piece of metal
2.Environment friendly--no wasteful of material
3.High strength--higher strength to weight ration then metal sheet
4.Adherence--anti slip surface
5.Very good noise and fluid filtration--excludes & retains simultaneously
6.Good rigidity--premium reinforcement properties
7.Good conductivity--highly efficient conductor
8.Screening--practical and effective light filtration
9.Good resistance to corrosion
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