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大蔴是我区主要经济作物之一,也是全国著名的潞蔴产地。近年来由于蔴天牛(ThyestilagebleriFald)的为害,严重的影响着蔴皮的产量与质量。特别是一九五九年为害较重,被害率达百分之九十以上,严重地块达百分之百。使蔴皮的产量与质量大大降低,被害蔴皮多成断条。根据调查,因蔴天牛为害每亩减少产值达三十元以上。茲将进行研究结果简述如下:
Cannabis is one of the main cash crops in our district and is also a well-known place of production in the country. In recent years, due to the damage caused by ThyestilagebleriFald, the yield and quality of the bast is seriously affected. In particular, the one with the highest tolls in 1959 was hit more than 90% and the land was severely damaged by 100%. So that the yield and quality of Ma Bark greatly reduced, the more muck cut into strips. According to the survey, Ma Tian cow damage per acre to reduce output value of 30 yuan or more. The research results will be briefly described as follows: