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松蚜(Cinara pinea Mordvilko)是马尾松(Pinusmassoniana)、黑松(Pinus thunbergna)等一、二年生枝干上的主要害虫。在江西每年9月至翌年3月左右为害松林。其中以10月下旬至12月繁殖最盛。多者一株马尾松的蚜群可达数千至万头。站在树下其排泄的蜜露宛如下小雨一般。 每次寒潮侵袭时,往往在受着强大的北风(观察地风速可达9.5米/秒以上)和雨雪的恶劣环境影响下,它们却能拥挤一起,躲避于背风的枝干上,甚至可重迭2—3层。气候好转后,即使几天不吸食也能照常地恢复其正常的生理机能。 本文的目的是探对松蚜的耐饥力及绝食对松蚜生殖力的影响。本文所用材料系由本校附近的马尾松上采来的各型松蚜。分别编为4组,单个装入编号的开口指形管。于1963年11月到1964午1月进行实验,重复2—4次。简要结果见表1—4。
Aphis (Cinara pinea Mordvilko) is a major pest on the biennial branches of Pinus massoniana and Pinus thunbergna. In Jiangxi every year from September to March next year or so damaged pine forest. Which in late October to December breeding the most prosperous. More than a mass of Pinus massoniana up to thousands to ten thousand. The honeydew that excretes under the tree stands like the following light rain. Each cold wave attack, often under the influence of the strong north wind (observation wind speed of up to 9.5 m / s) and the harsh environment of rain and snow, they can crowded together to avoid the leeward branches, and even Can overlap 2-3 layers. After the weather improves, its normal physiological function can be restored as usual even if it is not taken for a few days. The purpose of this paper is to investigate the effects of starvation and fasting on the fecundity of the aphids. The materials used in this article are various types of pine aphids from masson pine near the school. They were individually weighed into 4 groups with a single, numbered open finger tube. Experiments were conducted from November 1963 to January 1964, and were repeated 2-4 times. The summary results are shown in Table 1-4.