The prevention and control strategies for rice pests and diseases are: prevention of seedling stage, relaxation of tillering stage, protection of the ear stage. At present, the management of Putian in our county has entered a critical period. The township agricultural technology stations should attach great importance to the prevention and control of rice pests and diseases in the paddy field, focusing on the prevention and control of climatic diseases (green, dry, stumbled) and prevention of seedling-borne diseases (inoculation of rice seedlings, etc.) ), prevention and control of insect-borne diseases (viral diseases) such as rice planthoppers and thrips, effectively reducing the number of pests in rice fields and ensuring the safety of rice production. First, rice rotten Due to the different pathogenic factors, it is divided into physiological sputum and disseminated sputum. Physiological rotten cockroaches are mainly caused by bad weather such as low temperature and rain, cold air attack and improper management of water layers, such as rotten seeds, rotten buds, green stalks, yellow dead saplings, etc.; The resulting rotten dead seedlings caused by bacterial diseases such as blight, Phytophthora, cotton rot, and rice seedlings. Prevention: 1. Scientific management of water and fertilizer. Before sowing, before the exposure to the green, the main purpose of ventilation and oxygen supply is to prevent water accumulation and prevent water shortage, and to dry and easily die, and it is better to have no cracks in the seedbed. 2. Master the time and method of uncovering the film in dry nursery, control the temperature and humidity in the shed, and increase the temperature in the shed when the weather is fine. It should be ventilated in time to prevent high temperature burning and burning. When the cold wave comes, cover the shed in time. Nursery. 3, for the occurrence of green and dry, yellow withered and the occurrence of disseminated rotten cockroaches, in the early stage of the disease with 3% Guanglingling 500 times or 30% carbendazim 1000 times spray. Fertilizer can only be applied after the condition is controlled, otherwise the condition will be aggravated. Second, other pests and diseases Carry out the "prevention-based, comprehensive prevention" plant protection policy, and spray a "give medicine" prevention 5-7 days before transplanting. 1. Control seedling rice blast: use 40% Fuji No. 1 emulsifiable concentrate 100 ml or 75% tricycloazole wettable powder 30 g/45 kg spray per acre. 2, control rice planthoppers, thrips: 4 grams of 70% imidacloprid water solution or 3% acetamiprid 15-20 ml water 45 kg spray. More pesticide knowledge , please pay attention to China Pesticide Network Linyi Hmbyan International Trading Co.,Ltd , https://www.hmbyandecor.com
Strengthen the prevention and control of pests and diseases in the field to ensure the safety of rice production