Resistance to the Cry1Ac δ-Endotoxin of Bacillus thuringiensis in the Cotton Bollworm, Helicoverpa armigera (Lepidoptera: Noctuidae)

RJ Akhurst, W James, LJ Bird… - Journal of Economic …, 2003 - academic.oup.com
Three laboratory strains of Helicoverpa armigera (Hübner) were established by mating of
field-collected insects with an existing insecticide-susceptible laboratory strain. These …

Genetics of spinosad resistance in a multi‐resistant field‐selected population of Plutella xylostella

AH Sayyed, D Omar, DJ Wright - Pest Management Science …, 2004 - Wiley Online Library
Resistance to the bacteria‐derived insecticides spinosad (Conserve), abamectin (Vertimec),
Bacillus thuringiensis var kurstaki (Btk)(Dipel), B thuringiensis var aizawai (Bta)(Xentari), B …

Genetic, Biochemical, and Physiological Characterization of Spinosad Resistance in Plutella xylostella (Lepidoptera: Plutellidae)

AH Sayyed, S Saeed, M Noor-Ul-Ane… - Journal of Economic …, 2008 - academic.oup.com
Bioassays (at generation G2) with a newly collected field population (designated MN) of
Plutella xylostella (L.)(Lepidoptera: Plutellidae) from Multan, Pakistan, indicated resistance …

Cross‐resistance, mode of inheritance and stability of resistance to emamectin in Spodoptera litura (Lepidoptera: Noctuidae)

SA Shad, AH Sayyed, MA Saleem - Pest Management Science, 2010 - Wiley Online Library
Abstract BACKGROUND: Spodoptera litura (F.) is a cosmopolitan pest that has developed
resistance to several insecticides. The aim of the present study was to establish whether an …

Cross-Resistance and Genetics of Resistance to Indoxacarb in Spodoptera litura (Lepidoptera: Noctuidae)

AH Sayyed, M Ahmad… - Journal of Economic …, 2014 - academic.oup.com
Bioassays (at generation G1) with a newly collected field population of Spodoptera litura
(F.)(Lepidoptera: Noctuidae) from Multan, Pakistan, showed resistance ratios of 15, 23, 37 …

Genetic variability of Spodoptera frugiperda Smith (Lepidoptera: Noctuidae) populations from Latin America is associated with variations in susceptibility to Bacillus …

R Monnerat, E Martins, P Queiroz, S Ordúz… - Applied and …, 2006 - Am Soc Microbiol
Bacillus thuringiensis strains isolated from Latin American soil samples that showed toxicity
against three Spodoptera frugiperda populations from different geographical areas (Mexico …

Susceptibility of Spodoptera exigua to 9 toxins from Bacillus thuringiensis

P Hernández-Martínez, J Ferré, B Escriche - Journal of Invertebrate …, 2008 - Elsevier
Nine of the most common lepidopteran active Cry proteins from Bacillus thuringiensis have
been tested for activity against Spodoptera exigua. Because of possible intraspecific …

ISSR-PCR: Tool for discrimination and genetic structure analysis of Plutella xylostella populations native to different geographical areas

O Roux, M Gevrey, L Arvanitakis, C Gers… - Molecular phylogenetics …, 2007 - Elsevier
The diamondback moth (DBM), Plutella xylostella (L.) is considered as the most destructive
pest of Brassicaceae crops world-wide. Its migratory capacities and development of …

Independent and Synergistic Effects of Knocking out Two ABC Transporter Genes on Resistance to Bacillus thuringiensis Toxins Cry1Ac and Cry1Fa in Diamondback …

S Zhao, D Jiang, F Wang, Y Yang, BE Tabashnik, Y Wu - Toxins, 2020 - mdpi.com
Insecticidal proteins from Bacillus thuringiensis (Bt) are used widely in sprays and
transgenic crops to control insect pests. However, evolution of resistance by pests can …

Evidence of Field-Evolved Resistance to Organophosphates and Pyrethroids in Chrysoperla carnea (Neuroptera: Chrysopidae)

A Khan Pathan, AH Sayyed, M Aslam… - Journal of Economic …, 2008 - academic.oup.com
The toxicity of some of the most commonly used insecticides in the organophosphate and
pyrethroid classes were investigated against different Chrysoperla carnea (Stephens) …