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Biotype and insecticide resistance status of B emisia tabaci populations from P eninsular M alaysia
Author(s) -
Shadmany M.,
Omar D.,
Muhamad R.
Publication year - 2015
Publication title -
journal of applied entomology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.795
H-Index - 60
eISSN - 1439-0418
pISSN - 0931-2048
DOI - 10.1111/jen.12131
Subject(s) - biology , pest analysis , population , imidacloprid , cypermethrin , resistance (ecology) , insect pest , veterinary medicine , toxicology , botany , pesticide , agronomy , demography , medicine , sociology
B emisia tabaci , a resistance‐prone insect pest, is a cryptic species complex with important invasive biotypes such as B and Q . The biotype and resistance statuses of this pest in M alaysia remain unclear. This study assessed the biotype and resistance status of a number of contemporary populations of B . tabaci based on the mt CO 1 marker and the dose‐response method, respectively. The P ahang ( PHG ) population was labelled as the Q biotype, while the remainder of the populations belonged to the A sia 1 biotype. A very low level of resistance for profenofos, cypermethrin, and imidacloprid was detected for all populations [resistance factor ( RF ) < 10]. Resistance to diafenthiuron ranged from very low to very high ( RF > 100). All populations showed a very low level of resistance against pymetrozine except Q ‐type PHG population, which exhibited a very high level of resistance. For most insecticides, the highest level of resistance was detected in the PHG population. The implications of these findings for better management of this noxious pest are discussed.