In terms of pest control, to further reduce the impact of pests and diseases on plant growth, scientific prevention and control measures are indispensable, and to achieve the goal of scientific prevention and control, the work that needs to be done in the early stages is to use a pest survey statistic instrument. The investigation of pests and diseases was carried out to understand the regularity of the occurrence of plant diseases and insect pests. Only when the plant protection personnel formulate prevention and control measures could the data be followed, and the farmers carried out prevention and control work based on these measures, they were able to achieve good control and prevention effects. Harm to a minimum.

At present, it is in the seedling stage of rapeseed growth. Although apparently the growth of rapeseed is good on this occasion, there may actually be some diseases and insect pests. If there is a large area of ​​pests and diseases, it will cause serious damage to rapeseed production. Therefore, it is very necessary to carry out investigation and prevention and control of rape seedling pests at this time. Plant protection personnel use pest survey statistics to carry out work, not only can improve the efficiency of pest and disease investigation, and better complete pest and disease investigation work, but also can effectively ensure the timely release of disease and insect intelligence guidance to help farmers conduct scientific prevention.
The technicians used pest survey statistics to find out that some pests such as tapeworms, cabbage caterpillars, and downy mildew were present in some plots. Among them, the average infestation rate of locusts was 30%, and the number of larvae was 320; the average rate of cabbage worms was average. 4%, 100 strains of 9 insects; the average incidence of downy mildew was 0.8%. According to the statistics of pest and disease survey statistics, the plant protection technicians developed scientific pest control measures for rapeseed growers and achieved targeted prevention and control. The control effect was very significant and not only effectively controlled rapeseeds. The number of pests in the ground and the serious occurrence of diseases are avoided, and the waste of pesticides is effectively reduced, the production cost is reduced, and the rapeseed harvest is guaranteed in the coming year.

Construction Hoist Safety Device

Safety is one of the most important for Construction Hoist, thus the Construction Hoist Safety Device is required. SAJ safety device is a product of BQ. When a cage over-speeds the device should act cut off the power stop the cage on mast gradually. The safety device is adjusted and sealed. Do not disassemble it. The using time limit of safety device are signed on it`s nameplate. Safety device must be delivered to the factory and inspected after it reached to time limit.

Safety device board is the connected part between safety device and other structures, it can take the impact of stopping the cage. There are installed lower speed switch, upper travel limit switch and final limit switch, once the switchs touch the relevant cam the cage will act.

We also supply other spare parts for construction hoist, such as construction hoist Mast Section, Construction Hoist Anchorage Frame, Passenger Hoist Cage, Construction Hoist Overload Protector, Sliding Contact Line, Construction Hoist Motor, Construction Hoist Reducer and so on.

SAJ Safety Device,Passenger Hoist Safety Device,Construction Hoist Overload Protector,Overload Limiter,Anti-fall Device

SHEN YANG BAOQUAN BUSINESS CO., LTD , https://www.sytopkittowercrane.com