提出了新的紫胶虫死亡率计算公式。

Come forward new formula to count mortality of lac insect.

紫胶虫用粘性排泄物作为停留在它所生存的树上的手段。

The Kerria lacca uses the sticky excretion as a means to stick to the trees on which it lives.

紫胶，虫胶由紫胶虫分泌的沉积于树上的树脂分泌物，用于制造虫胶清漆。

A resinous secretion of the lac insect deposited on trees and used in making shellac.

本文分析了我国紫胶主产区的气候条件以及新产区紫胶虫引种驯化的研究概况。

This paper deals with climatic conditions in original lac-producing areas and lac insect introduction and cultivation in new places.

云南特有的流域地形、山脉走向及所形成的小气候特点决定了云南紫胶虫在云南的地理分布格局。

The unique river valley topography, mountain range alignment, and local weather characteristics in Yunnan Province determine the geographic distribution pattern of K. yunnanensis.