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1977年在河北省迁西县杨家峪大队首次发现酸枣尺蠖Chihuo sunzao Yang(见图)为害栗树,尚未发现其他寄主。据《华北灯下蛾类图志》等记载,在宁夏曾发现此种尺蠖,为害酸枣、大枣、苹果及野酸枣等。1978—1980年作者对栗树上发生的酸枣尺蠖做了初步观察,其结果如下。 一、发生规律及生活习性 一年发生一代,以蛹在土中越冬。据1979年3月调查,越冬部位多在距树干20厘米左右处,深度在地表下5—10厘米左右,10厘米以下未见越冬蛹。
In 1977 in Qianxi County, Hebei Province Yangjiayu brigade for the first time found acid jujube 蠖 Chihuo sunzao Yang (see photo) chestnut trees, yet to find other hosts. According to “North China lamp moth map” and other records, such scallop found in Ningxia, jujube jujube, jujube, apple and wild jujube and so on. From 1978 to 1980, the author made a preliminary observation of the jujube tree jujube occurring on the chestnut tree and the results are as follows. First, the occurrence of laws and habits One generation a year, with pupa in the soil overwintering. According to a survey in March 1979, the overwintering sites were mostly about 20 centimeters away from the trunk, with depths of about 5-10 centimeters below the surface and no wintering pupae below 10 centimeters.