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对临沂市主栽水稻品种进行黑条矮缩病田间自然诱发鉴定,结果表明:临稻16号、临稻18号、大粮203发病率均为25%,为较抗病品种。控制秧田灰飞虱虫量,对水稻黑条矮缩病具有较好的防治效果。秧田覆盖防虫网并在移栽前使用10%庄爱WP防治1次,防效最好,为82.98%;秧田单独使用50%拓胜WP防治,防效达到72.05%;增加使用30%毒氟磷WP或31%病毒康SP时,防治效果没有显著提高;单独使用30%毒氟磷WP或31%病毒康SP时,防效较差。
The main cultivated rice varieties of Linyi City were identified by the natural induction of black-streaked dwarf disease in the field. The results showed that the incidence rates of Lindao 16, Linzhi 18 and Da Liang 203 were both 25%, which were more resistant varieties. Controlling the amount of Laodelphax striatellus has a good control effect on rice black-streaked dwarf disease. Seedling cover insect net and before the transplanting 10% Zhuang love WP control 1, the best control effect was 82.98%; seedling alone 50% extension of WP prevention and control, control effect reached 72.05%; increased use of 30% toxic fluorine Phosphate WP or 31% of the virus Kang SP, the control effect did not significantly improve; single use of 30% toxic fluorine WP or 31% of the virus Kang SP, the control effect is poor.