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近年来,随着我区制作耕度的变革及气候方面等原因,林芝地区八字地老虎发生为害连续增加,据田间调查,虫口密度较大,为害率达10—15％。为探讨该虫的发生规律与防治措施,于1976—1978年在林芝县尼池公社采取田间观察及室内饲养等方法,进行了初步研究。一、寄主植物据三年连续观察,八字地老虎食性较杂,寄主种类繁多,除为害冬小麦、青稞外,对豌豆、油菜、荞麦和蔬菜中的白菜,萝卜等均进行为害。
In recent years, with the change of cultivated land in our region and the climate, the occurrence of zigzag tigers in Nyingchi Prefecture has continuously increased. According to field surveys, the density of insect pests is large, and the damage rate is 10-15%. In order to investigate the occurrence and control measures of this pest, a preliminary study was conducted in 1976-1978 in the village of Nyingchi, Nyingchi Prefecture by field observation and indoor rearing. First, the host plant, according to three consecutive years of observation, eight characters tiger diet is more complex, host a wide range, in addition to the damage of winter wheat, barley, on peas, rape, buckwheat and vegetables in cabbage, radish Dengjun damage.