今春黑龙江省水稻苗期气温冷暖交替频繁,降雨较多,加之部分地区育苗大棚管理不善,秧苗素质较差,插秧后又遇低温时段,部分秧苗根系发育不良,缓苗慢,造成叶片平铺水面,利于水稻潜叶蝇产卵为害。同时,气象部门预测,6月份气温较常年略低,降水正常略多,对潜叶蝇发生为害较为有利。 This spring, rice seedling temperature in Heilongjiang Province, alternating cold and warm alternate, more rainfall, coupled with poor management of nursery greenhouse in some areas, poor quality of seedlings, transplanting and cryogenic period after transplanting, some seedling root system dysplasia, slow sluggish, resulting in leaf tile surface , Conducive to rice leaf miner spawning damage. Meanwhile, the meteorological department predicted that the temperature in June was slightly lower than that of the normal year, and there was a little more normal precipitation, which was more beneficial to the occurrence of leaf miner.