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1978年我们对湖南省南部地区紫胶虫越冬保种情况作了调查。调杳工作主要在江华和江永两县进行,其目的是了解各放养点的自然条件和紫胶虫试放情况,根据实际情况分析比较各放养点的环境条件对紫胶虫越冬的活应程度,为选择紫胶虫越冬保种基地提供科学依据。本报告是根据各放养点历年试验的情况和结果,着重从同紫胶虫越冬保种有关的主要自然因素如地形、气候及寄主树等作初步的探讨,分析紫胶虫对环境条件的要求。因为这些放养点大部份接近于南亚热带地区的北缘,紫胶虫的越冬保种问题很值得注意。应当说明,由于各放养点试验的时间长短不一,试验的数量有多有少,因此主要采用当时现场调查的资料加以比较综合。
In 1978, we investigated the situation of overwintering conservation of lac insect in southern Hunan Province. The main task is to investigate the natural conditions of the stocking spots and the trial release of the larvae in Jianghua and Jiangyong County. According to the actual situation, To provide a scientific basis for choosing a shellac species for overwintering conservation. This report is based on the situation and result of each point-of-year test of stocking points over the past years, focusing on the preliminary study on the main natural factors related to the overwintering conservation of the lac insect species such as topography, climate and host trees. . Because most of these stocking points are close to the northern margin of the southern subtropics, the overwintering conservation of the lactea is noteworthy. It should be noted that due to the different lengths of time and the number of tests carried out at different stocking points, the data collected from the field surveys at the time were more comprehensive.