China News Network client March 27 (Yang Yuqi) The State Council's joint defense and control mechanism held a press conference on March 27. Liu Lihua, deputy director of the Department of Plantation Management of the Ministry of Agriculture and Rural Affairs, introduced that the major diseases and insect pests of crops in China this year are generally more serious and may be heavier than the previous year. The major threats to maize production are Spodoptera frugiperda, the main threats to rice production are rice planthoppers and rice leaf rollers, and the main threats to wheat production are wheat stripe rust, scab, and powdery mildew. Liu Lihua introduced that on March 17, the State Council's executive meeting has reviewed and passed the Regulations on the Prevention and Control of Crop Diseases and Pests (Draft). The Ministry of Agriculture and Rural Areas will conscientiously compact local responsibilities, implement prevention and control measures, and resolutely fight against the problem of "grass for food" in accordance with the regulations.