How to prevent rice stem nematode disease?

Soak the seeds with 0.5% hydrochloric acid solution for 2 days and nights, rinse the rice seeds with 90% of the Bataan soluble powder 6000 times, and soak the seeds with 80% of the chlorinated WP 1000 times. Stay up all night, 18% insecticidal double agent 250 times liquid soaking 2 nights, 17% bacteria water clearing agent 250 times liquid soaking seeds for 3 days and nights. The soaking temperature is generally 15 to 20 degrees Celsius. The soaking amount is generally preferably that the liquid is submerged in the liquid, and the weight ratio of the liquid to the rice is about 1 to 1. After Honda has symptoms, it is generally necessary to dilute the field to reduce reinfection.