红树林丽绿刺蛾的抗逆性研究

被引:14
作者
丁珌
黄金水
方柏州
吴寿德
柳其文
机构
[1] 福建农林大学
[2] 福建省林业科学研究院
[3] 福建省云霄县林业局
关键词
丽绿刺蛾; 抗逆性; 红树林;
D O I
暂无
中图分类号
S763.3 [虫害及其防治];
学科分类号
090402 ;
摘要
Latoia lepida is one of the main defoliators for the mangrove forest. The survey in the forest revealed that L.lepida principally distributed on the middle and upper parts of crown, the position soaked by seawater for short time gradually decreased from the internal beach to the external beach, the average injured percentage was 46.3% on the internal beach (high tide position), and the average injured percentage was only 13.8% on the external beach (middle tide position). The seawater soak-resistant experiment indicated that the influence of different soak times existed the extremely marked different on L.lepida survival rate, the population mortality rate increased with the increase of soaking time after soaking for more than 4 h, the population mortality reached the peak at the time of soaking for 8 h, and then the population survival rate stabilized to a certain level. The difference was not obvious among various-generation larval adversity resistance, the difference was evident among various-instars larval adversity resistance, the adversity resistance of larvae on seawater soaking was the main reason for the larval population distribution law and the large outbreak of L.lepida in the forest.
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收藏
页码:198 / 202
页数:5
相关论文
共 2 条
[1]   谈谈秋茄引种栽植技术 [J].
汪维礼 .
浙江林业科技, 1988, (03) :42-44+35
[2]  
中国森林昆虫[M]. 中国林业出版社 , 萧刚柔主编, 1992