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早稻栽培早中熟品种可以避开二代三化螟的为害。例如:上犹县农科所栽培的马伯矮36号和朝阳选,6月9日齐穗,7月2日收割;犹江早1号,6月12日齐穗,7月8日收割。在不防治的情况下,白穗率在0.1％以下。油石公社下充生产队和柚子生产队的早熟品种不防治白穗率也在0.105％—0.13％。由此可见如果根据社队劳力等情况将早熟品种的栽培面积扩大占水田面积的一半左右,则早熟品种,就不必防治,使我们能集中力量来防治另一半中、迟熟品种。那么,在防治三化螟的战斗中,我们就有了主动权。
Early rice cultivation Early maturing varieties can avoid the damage of the third generation Borer. For example: Shangyou County Agronomy cultivated Marburg short 36 and the Chaoyang election, June 9 full heading, July 2 harvest; Yujiang early on the 1st, June 12 full heading, July 8 harvest . In the case of non-control, white spike rate below 0.1%. Oilstone Commune under the production team and grapefruit production team of precocious varieties not control White spike rate is 0.105% -0.13%. This shows that if the cultivated area of early-maturing varieties is expanded to about half of the paddy field according to the labor force of social-communal teams, the precocious species will not have to be prevented and controlled so that we can concentrate on preventing the other half of middle-late varieties. Well, in the fight against rice stem borer, we have the initiative.