Overcoming the resistance of codling moth against conventional Cydia pomonella granulovirus (CpGV-M) by a new isolate CpGV-I12

被引：58

作者：

Eberle, K. E. ^{[1
]}

Asser-Kaiser, S. ^{[1
]}

Sayed, S. M. ^{[1
]}

Nguyen, H. T. ^{[1
]}

Jehle, J. A. ^{[1
]}

机构：

[1] Agr Serv Ctr Palatinate DLR Rheinpfalz, Dept Phytopathol, Lab Biotechnol Crop Protect, D-67435 Neustadt, Germany

来源：

JOURNAL OF INVERTEBRATE PATHOLOGY | 2008年 / 98卷 / 03期

关键词：

baculovirus; codling moth; Cydia pomonella; Cydia pomonella granulovirus; CpGV; resistance; Cry1Ab;

D O I：

10.1016/j.jip.2008.03.003

中图分类号：

Q95 [动物学];

学科分类号：

071002 ;

摘要：

Recently, codling moth (CM, Cydia pomonella L.) populations with a significantly reduced susceptibility to C. pomonella granulovirus (CpGV) products have been observed in Germany, A novel CpGV isolate, designated CpGV-I12, is able to overcome the CpGV resistance. CpGV-I12 originated from Iran and showed Superior efficacy in laboratory bioassays against a resistant CM strain (CpR), which has a 100-fold reduced susceptibility to commercially used isolate CpGV-M. Determination of the median lethal concentration (LC50) indicated that CpGV-I12 is nearly as efficient in resistant CpR as CpGV-M in a susceptible CM strain (CpS). Beyond, CpGV-I12 caused superior mortality in CpS. Infection experiments showed that the resistance breaking effect can be observed in all instars of CpR. CpGV-I12 is a promising alternative control agent of CM in orchards where conventional CpGV products fail. In addition, we demonstrate in bioassays with recombinant expressed Cry1Ab that cross-resistance to CpGV and Bacillus thuringiensis products is not likely. (C) 2008 Elsevier Inc. All rights reserved.

引用

页码：293 / 298

页数：6

共 23 条

[1] A method of computing the effectiveness of an insecticide [J].