Incidence conditions: the optimal temperature of 16-22°C, high humidity, large temperature difference between day and night, and long duration of condensation. The seedling stage is basically free from disease, and it is easy to be attacked after the scab stage.
Control methods:
(1) Planting resistant varieties.
(2) Clean farms Strengthen management, adopt formula fertilization technology, and properly plant dense plants.
(3) Chemical control 10% of the world's high 1500 times liquid, white powder net 800 times liquid spray control.
Energy Abosorbing Lanyard is a connection between Full Body Harness and fixed point. It made of high strength polyester rope. One end with normal karabiner for connect harness, the other end with one or tow big hook. The hook can be connect with fixture. And it with Energy Absorb unit.
It used for high-altitude workers.
Energy Absorbing Lanyard,Shock Absorber Lanyard,Safety Lanyard With Shock Absorber,Safety Lanyard With 2 Hooks
Greateagle Safety Products Co., Ltd. , https://www.greateaglesafety.com