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紫胶虫寄土植物是紫胶虫栖居和吸收养份场所。因此,它是紫胶生产的物质基础。寄主植物的优劣直接影响到紫胶的产量和质量。据报道,我国已记述寄主植物达327种,其中推广应用的寄主植物不上10种,远远不能适应紫胶生产发展的需要。为此,发掘优良寄主植物具有重要意义。我们对1962年从印度尼西亚引入的苏门答腊金合欢[Acacia glauca(L.)Moench]陆续进行适应性观察和放养紫胶虫试验,结果表明:本树种生长迅速,萌生力强,病虫害少,具有一定耐瘠薄和耐寒能力;能作为冬夏二代寄主植物,而且其胶虫泌胶量高,胶质优良等特点。我们曾作过简要介绍,现把试验观察的结果补充报道于下。
Lac larvae send plants to iris to inhabit and absorb nutrients. Therefore, it is the material basis of shellac production. The merits of host plants directly affect the yield and quality of shellac. According to reports, our country has described a host of up to 327 species of plants, including the promotion of the host plant less than 10 species, far from being able to adapt to the needs of the development of shellac production. For this reason, it is of great significance to discover excellent host plants. We carried out the adaptability observation and stocking of the lacongrass experiment on the Acacia glauca (L.) Moench which was introduced from Indonesia in 1962. The results showed that this species grows rapidly, has strong germination ability, few pests and diseases, and has certain resistance Barren and cold ability; can be used as host plants in winter and summer II, but also its gum insects, high volume, excellent glial and so on. We have made a brief introduction, and we now supplement the results of the trial observation with the following report.