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一、稻瘟病。预计全区中等偏轻局部中等程度发生,发生面积400万亩。发生主要区域在桂东北、桂东南,以及种植感病品种较多的山区及历史发生区。叶瘟流行盛期将持续至6月下旬;穗颈瘟流行期为6月中旬至7月中旬。二、稻纹枯病。预计全区为中等偏重发生,发生面积980万亩,全区普遍发生。重发生区在桂东北、桂东南稻区。水稻孕穗至灌浆期为流行高峰期。三、稻飞虱。预计发生程度为大发生,发生面积1350万亩,同比偏重,全区普遍发生。发生盛期在6月至7月上旬,其中6月中、下旬为发生高峰。四、稻纵卷叶螟。预计发生程度中等偏重,发生面积800万亩,全区普遍发生。发生为害盛期在6月中、下旬。五、三化
First, rice blast. It is estimated that the area will have a moderate area of 4 million hectares in medium-sized and light areas. Occurrence of the main areas in northeast Guangxi, southeast Guangxi, as well as the cultivation of susceptible varieties of mountainous and historical areas. The prevalence of leaf blast will last until the end of June; the prevalence of panicle blast is mid-June to mid-July. Second, rice sheath blight. The whole region is expected to be moderately weighted with an area of 980 million mu and widespread occurrence in the region. Heavy areas in northeast Guangxi, Southeast Guangxi rice. Rice booting to filling the peak of the epidemic. Third, planthopper. Expected to occur to a large extent, occurred an area of 1350 acres, year on year emphasis, the region generally. Occurred in the peak from June to early July, of which the middle and late June peaked. Fourth, the rice leafroller. It is expected that the occurrence will be moderately weighted with an area of 8 million mu and widespread occurrence in the whole region. The occurrence of the damaging period in mid-June, late. Five or three