How to control rice dry-tip nematode disease?

How to control rice dry-tip nematode disease? Please introduce the method of rice dry tip nematode disease, also known as white tip disease, nematode heart blight. It has occurred in all the major rice areas of the country. Production is generally reduced by 10% to 20%, and serious ones can reach more than 30%. It mainly harms leaves and ears. Rice dry-tip nematode disease mainly occurs at the booting stage of rice. Light brown translucent disease spots generally appear at the tip of flag leaves or the upper 2-3 leaves, and then gradually become grayish brown and twisted dry tips. The diseased ear was shorter and smaller than the healthy ear, the blighted grain increased and the 1000-grain weight decreased. Rice dry tip nematode disease can be controlled with reference to the following methods: 1. Strengthen plant quarantine: plant quarantine should be strengthened and the introduction of seeds from disease areas is strictly prohibited. 2. To establish a disease-free seed field: the drainage and irrigation system of the seed field should be matched to prevent the irrigation of water with nematodes. Carry out seed testing before harvest to ensure that there is no disease, and then harvest, play and hide separately, and save them as seeds. 4. At the seedling stage, 2% avermectin + "Tianda 2116" Zhuangmiaoling 600 times liquid, foliar spray, twice in a row, once every 10 to 15 days. Click to get more rice planting techniques click to get more food crop planting techniques