Identification and Prevention of "Two Migration" Pests in Rice
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September 29 15:01:54, 2024
Rice "two pests" refers to rice leaf roller and rice planthoppers. Both of these pests have migrated from other places, and have often caused sudden outbreaks in local areas, causing serious losses to production. For the control of rice leaf roller, the application should be started when there are 10 to 15 new leaf tips per 100 clusters of rice. The specific control agent can use 21% of “Shanruiâ€, and the amount of mu is 50-70 ml; or 5%. The "Ruijinte", the amount of 30-40 ml per mu; or 48% of the Bassin, the amount of 50-70 ml acres, 45 kg of watered spray. In addition, conventional acaricides such as "special killings" and "quick killings" and "bactericidal bacillus" and "BT green insecticides" can also be used for prevention and control. Prevention of rice planthoppers, first, should control the late rice fertilizer and irrigation, as far as possible to shallow water ground irrigation, timely field drying, reduce field humidity, prevent late growth of rice cultivars, and worsen the living environment of rice planthoppers; Second, conditions can be in the rice field The ducklings are stocked and the ducks are used to treat pests; the third is chemical control, and should be grabbed before the occurrence of rice planthoppers, and the fields should be filled with water, and the use of “high-efficiency heroes†or “strengthworm nets†or “green venom kills†and other drugs Symptomatic pesticides are re-irrigated at the base of rice stalks; when the rice is in its infancy, it can also be dried when the Tianqingtianshui is dry. After mu is used to make poisonous soil with 300-400 ml of “dichlorvos,†it is sprinkled at the base of the rice paddy when the temperature is high at noon. , Kaoru kill rice planthoppers.