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根据六六六泥团塞根有治螟效果的报导[黄山等,1956],为改进施药方法,我所于1957年进行土壤施药的盆栽药效測定,效果良好;1958年,田間防治試驗因处理时間太早(4月28日施药),效果不显;1960及1961年又进行田間試驗,因当年螟害輕微,防治效果也不够显著。据文献报导,六六六土壤施药,每亩用丙体六六六180克(折合数),对第一代二化螟防治效果良好,残效期达20—30天,并指出药剂系通过稻根内吸和沿叶鞘間上升的作用,杀死蛀入的蚁螟。昆明地区一般早栽田,栽秧后15—25天,正是螟卵盛孵期。1963年在昆明市郊区早栽田内,进行六六六土壤施药試驗,观察防治第一代三化螟的效果。試驗方法
According to the report on the effect of Bhiksan Mudagen on the stem borer [Huangshan et al., 1956], in order to improve the method of application, we measured the efficacy of potted soil in 1957 with good effect. In 1958, The test was too early (April 28 spraying), the effect is not significant; 1960 and 1961 field trials again, because the year was minor stems, prevention and control is not significant enough. According to the literature, 666 soil application, per acre C666 180 grams (equivalent), the first generation of rice stem borer control effect is good, the residual effect of 20-30 days, and pointed out that through the Department of Pharmacy Inhalation of rice roots and the role of the rise along the leaf sheath, killing borers moths. Kunming generally early field transplanting, 15-25 days after planting, it is the borer egg Sheng Sheng incubation period. Early in 1963 in the suburbs of Kunming transplanted fields, 666 soil application test to observe the effect of the first generation of three borer. experiment method