摘要
在长角血蜱若虫发育的不同时期：饱血当天（ＥＤ组）、饱血后５ｄ（５－ＰＥ组）和１２ｄ（１２－ＰＥ组）采用浸渍法施用不同剂量的早熟素Ｐ－Ⅱ。结果表明：对能蜕皮的剂量组，蜕皮前期均延长，与对照组差异显著（Ｐ＜００５）或非常显著（Ｐ＜００１）；ＥＤ组、５－ＰＥ组蜕皮率降低或不蜕皮，但对１２－ＰＥ组无影响。Ｐ－Ⅱ对若虫有致死作用，引起高的甚至百分之百的死亡，蜕皮前死亡率随着剂量增加而增高。
During various development periods: engorged day (ED group), 5 days postengorgement(5-PE group)and 12 days postengorgement(12-PE group), the Haemaphysalis longicornis Neumann nymphs were dipped into different doses of precocene-II(P-Ⅱ). The results indicated that the premoulting period was significantly prolonged in comparision to the untreated and acetone-treated control groups. The moulting percentage of both ED and 5-PE groups decreased and some treated groups didn't moult, but no effects on 12-PE group. P-Ⅱ showed lethal effects on nymphs and caused high even complete mortality. premoulting mortality increased along with treatment doses postively, but postmoulting mortality negatively.
出处
《寄生虫与医学昆虫学报》
CAS
1996年第2期111-115,共5页
Acta Parasitologica et Medica Entomologica Sinica
基金
国家自然科学基金资助项目
关键词
长角血蜱
若虫
蜕皮
存活
早熟素-Ⅱ
Haemaphysalis longicornis Neumann Nymph Moulting Mortality.
