当前位置: 首页 > 文章 > 美国白蛾Hyphantria cunea(Drury)越冬蛹的抗寒性研究 蚕业科学 2007,33 (4) 18-21
Position: Home > Articles > Cold Hardiness of the Overwintering Pupae of Fall Webworm Hyphantria cunea(Drury)(Lepidoptera: Arctiidae) Science of Sericulture 2007,33 (4) 18-21

美国白蛾Hyphantria cunea(Drury)越冬蛹的抗寒性研究

作  者:
孔锋;韩瑞东;裴元慧;李红梅;孙绪艮
单  位:
山东东营胜大园林公司;山东潍坊科技职业技术学院;山东农业大学植物保护学院
关键词:
美国白蛾;过冷却点;含水量;抗寒性
摘  要:
基于为控制美国白蛾Hyphantria cunea(Drury)对桑树和柞树的的危害提供理论依据,测定了美国白蛾越冬蛹不同时期的过冷却点和含水量。结果显示,越冬蛹的过冷却点以2月份最低,为(-27.07±0.38)℃,11、12月份最高,分别为(-20.38±2.26)℃和(-22.99±4.03)℃;含水量以11、3月最高,分别为67.03%和65.07%,1月份开始下降,2月份降至最低30.76%,3月份又增加到45.95%。含水量的变化与过冷却点的变化趋势相似,含水量的下降降低了越冬蛹的过冷却点,可增强其抗寒能力。
译  名:
Cold Hardiness of the Overwintering Pupae of Fall Webworm Hyphantria cunea(Drury)(Lepidoptera: Arctiidae)
作  者:
KONG Feng1 HAN Rui-Dong2 PEI Yuan-Hui1 LI Hong-Mei3 SUN Xu-Gen1(1College of Plant Protection,Shandong Agricultural University,Taian Shandong 271018,China;2Vocational Technical College of Weifang in Shandong Province,Shouguang Shandong 262700,China;3Shengda Landscape Company of Dongying in Shandong Province,Dongying Shandong 257000,China)
关键词:
Hyphantria cunea)Drury);Supercooling point;Water content;Cold hardiness
摘  要:
To provide theory evidence for developing the control method of Hyphantria cunea(Drury),the supercooling point and water content of the overwinter pupae were determined at different periods.Results showed that the least supercooling point was in February(-27.07±0.38) ℃,and the highest ones was in November and March [(-20.38±2.26) ℃ and(-22.99±4.03) ℃,respectively].The highest water content was in November and December(67.03% and 65.07%,respectively).The water content started to decrease in January,reached to the lowest(30.76%) in February and increased to 45.95% in March.Change trendency of water content was similiar with that of the supercooling point.The results revealed that decreasing of water content in overwintering pupae resulted in the decrement of supercooling point,which led to enhance the ability of cold hardiness.

相似文章

计量
文章访问数: 6
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊