摘要
应用灰色关联度(the gray sequence)分析不同防治措施对刚竹毒蛾(Pantana phyllostachysae Chao)种群变动的影响.分析结果表明:生物防治标准地种群变动与对照区相似,虫口较低;化学防治后标准地虫口较对照区为高,种群变动与对照区差异较大.第1代和第3代中各防治区与对照区种群变动最接近的均是白僵菌粉炮,其次是敌敌畏烟剂和油烟剂.第2代则是白僵菌粉炮>油烟剂>敌敌畏烟剂.进一步说明不同防治措施在不同环境条件下,干扰自然生态系统的程度不同.
The effect of control measures on Patana phyllostachysae Chao population variation was studied by means of the gray sequence analysis. The results indicated that P. phyllostachysae population in biological control treated lands was low and had similar variation trends with untreated ones, but those in the chemical pesticides treated lands were higher and variation trends were greatly different In the 1^st and 3^rd generations the gray sequence in different treatments was highest in biological treated lands and lowest in diclorvos treated ones, respectively. But in the 2^nd generation, the lowest gray sequence was found in oil smoke treated lands.
出处
《华东昆虫学报》
2005年第3期243-245,共3页
Entomological Journal of East China
基金
福建省自然科学基金
关键词
灰色关联度
刚竹毒蛾
种群变动
the gray sequence
Pantana phyllostachysae
the population change
