El Kady Hafez, Devine Gregor J
Plant Protection Department, Faculty of Agriculture at Moshtohor, Zagazig University, Qalubia, Egypt.
Pest Manag Sci. 2003 Aug;59(8):865-71. doi: 10.1002/ps.687.
Three collections of Bemisia tabaci were taken from cotton and vegetable crops at the beginning of the growing season in Egypt. These displayed marked resistance to the carbamates carbosulfan (ca 20- to 50-fold) and aldicarb (ca 40- to 80-fold) and moderate resistance to the pyrethroids cypermethrin (ca 10- to 30-fold) and lambda-cyhalothrin (ca 10- to 25-fold). They displayed no resistance to the organophosphates profenofos and pirimiphos-methyl, or to imidacloprid. Another population, collected at the end of the growing season, differed markedly in its response. In this population, resistance to carbosulfan remained high (ca 40-fold), resistance to profenofos and cypermethrin was increased (ca 20- and 50-fold respectively) and a slight resistance to imidacloprid was detected (ca 6-fold). Resistance to cypermethrin and profenofos was shown to be similar among adults and nymphs. Irrespective of collection date, none of the populations showed resistance to pyriproxyfen. These Egyptian populations were compared with two representative Israeli populations. The differences between their resistance profiles is discussed in terms of their collection date, their geographical proximity and the patterns of insecticide use at their sites of collection.
在埃及生长季节开始时，从棉花和蔬菜作物上采集了三批烟粉虱。这些烟粉虱对氨基甲酸酯类的丁硫克百威（约20至50倍）和涕灭威（约40至80倍）表现出显著抗性，对拟除虫菊酯类的氯氰菊酯（约10至30倍）和高效氯氟氰菊酯（约10至25倍）表现出中等抗性。它们对有机磷酸酯类的丙溴磷和甲基嘧啶磷以及吡虫啉没有抗性。在生长季节结束时采集的另一批烟粉虱，其反应明显不同。在这批烟粉虱中，对丁硫克百威的抗性仍然很高（约40倍），对丙溴磷和氯氰菊酯的抗性增加（分别约为20倍和50倍），并且检测到对吡虫啉有轻微抗性（约6倍）。氯氰菊酯和丙溴磷的抗性在成虫和若虫中表现相似。无论采集日期如何，所有种群对吡丙醚均无抗性。将这些埃及种群与两个有代表性的以色列种群进行了比较。根据它们的采集日期、地理 proximity 和采集地点的杀虫剂使用模式，讨论了它们抗性谱的差异。 （注：原文中“geographical proximity”表述有误，可能是“geographical proximity”，意思是“地理接近度” ，这里按推测翻译为“地理接近度” ，如果原文准确表述请再调整。）
