西花蓟马和花蓟马在温度逆境下的存活率比较  

Survival rates of Frankliniella occidentalis and Frankliniella intonsa after exposure to adverse temperature conditions

作　　者：盖海涛[1] 郅军锐[1] 李肇星[1] 蒋永金[1] 

机构地区：[1]贵州大学昆虫研究所,贵州山地农业病虫害重点实验室,贵阳550025

出　　处：《生态学杂志》2010年第8期1533-1537,共5页Chinese Journal of Ecology

基　　金：贵州大学研究生创新基金项目(校研农2009011);贵州省优秀科技教育人才省长专项资助项目(黔省专合字(2007)20号)

摘　　要：以外来入侵害虫西花蓟马(Frankliniella occidentalis)和本地种花蓟马(F.intonsa)为对象,研究了高温和低温逆境下两种蓟马各虫态存活率的差异.结果表明:在36℃～44℃高温下暴露2h和4h,不论是西花蓟马还是花蓟马,各虫态的存活率均随温度的升高而降低,但在相同高温处理条件下,同一虫态西花蓟马的存活率要高于花蓟马;在-2℃～-10℃低温下暴露2h和4h,西花蓟马和花蓟马各虫态的存活率均随随温度的降低而下降;在相同低温处理条件下,同一虫态西花蓟马的存活率也要高于花蓟马.由此表明,2种蓟马对高温和低温的适应能力不同,本地种花蓟马对高温和低温均比较敏感,而外来入侵害虫西花蓟马对极端温度具有较强的适应性.A comparative study was made on the survival rates of invasive pest Frankliniella occidentalis and indigenous pest Frankliniella intonsa at their different development stages after exposure to high and low temperatures. After 2 and 4 hours exposure to high temperatures （36 ℃, 38 ℃, 40 ℃, 42 ℃, and 44 ℃）, the survival rates of the two pests at their different development stages decreased with increasing temperature, but F. occidentalis at the same high temperatures had a higher survival rate than F. intonsa. After 2 and 4 hours exposure to low temperatures （-2 ℃, -4 ℃, -6 ℃, -8 ℃, and -10 ℃）, the survival rates of the two pests at their different development stages decreased with decreasing temperature, but the survival rate of F. occidentalis at the same low temperatures was also higher than that of F. intonsa. The results indicated that the adaptation capabilities of the two pests to high and low temperature were significantly different. F. intonsa was more sensitive, while F. occidentalis was more adaptable to adverse temperature.

关 键 词：西花蓟马 花蓟马 高温 低温 

分 类 号：S433[农业科学—农业昆虫与害虫防治]