Ali A, Xue R D, Lobinske R, Carandang N
University of Florida, IFAS, Central Florida Research and Education Center, Sanford 32771-9608, USA.
J Am Mosq Control Assoc. 1994 Dec;10(4):492-5.
A semi-field bioassay method using commonly available laundry tubs evaluated efficacy and residual activity of 6 granular corncob formulations of Bacillus thuringiensis serovar israelensis against laboratory-reared late 3rd- and early 4th-instar larvae of Aedes taeniorhynchus introduced to the tubs. These formulations produced appreciable larval mortalities (up to 75%) for 9 days posttreatment, with indications of having more prolonged activity. The consistent posttreatment larval mortality trends and the elucidated efficacy differences between formulations suggest that this bioassay method for the granular formulations is reliable and reproducible.
一种使用常见洗衣盆的半田间生物测定方法，评估了6种苏云金芽孢杆菌以色列变种颗粒状玉米芯制剂对引入洗衣盆中的实验室饲养的致倦库蚊3龄晚期和4龄早期幼虫的功效和残留活性。这些制剂在处理后9天产生了可观的幼虫死亡率（高达75%），表明具有更长时间的活性。处理后幼虫死亡率的一致趋势以及制剂之间已阐明的功效差异表明，这种针对颗粒制剂的生物测定方法是可靠且可重复的。
