RT Journal Article
T1 Cross-resistance to insecticides in a malathion-resistant strain of ceratitis capitata (Diptera: Tephritidae)
A1 Couso Ferrer, Francisco
A1 Arouri, Rabeh
A1 Beroiz Remírez, Beatriz
A1 Perera, Nathalia
A1 Cervera, Amelia
A1 Navarro Llopis, Vicente
A1 Castañera, Pedro
A1 Hernández Crespo, Pedro
A1 Ortego, Félix
AB Resistance to malathion has been reported in field populations of the Mediterranean fruit fly, Ceratitis capitata (Wiedemann) (Diptera: Tephritidae), in areas of Spain where an intensive use of this insecticide was maintained for several years. The main goal of this study was to determine whether resistance to malathion confers cross-resistance to different types of insecticides. Susceptibility bioassays showed that the malathion-resistant W-4Km strain (176-fold more resistant to malathion than the susceptible C strain) has moderate levels of cross-resistance (three- to 16-fold) to other organophosphates (trichlorphon, diazinon, phosmet and methyl-chlorpyrifos), the carbamate carbaryl, the pyrethroid lambda-cyhalothrin, and the benzoylphenylurea derivative lufenuron, whereas cross-resistance to spinosad was below two-fold. The W-4Km strain was selected with lambda-cyhalothrin to establish the lambda-cyhalothrin-resistant W-1Kλ strain (35-fold resistant to lambda-cyhalothrin). The synergistic activity of the esterase inhibitor DEF with lambda-cyhalothrin and the increase in esterase activity in the W-1Kλ strain suggests that esterases may be involved in the development of resistance to this insecticide. Our results showed that resistance to malathion may confer some degree of cross-resistance to insecticides currently approved for the control of Mediterranean fruit fly in citrus crops (lambda-cyhalothrin, lufenuron, and methyl-chlorpyrifos). Especially relevant is the case of lambda-cyhalothrin, because we have shown that resistance to this insecticide can rapidly evolve to levels that may compromise its effectiveness in the field.
PB Oxford Academic
SN 0022-0493
YR 2011
FD 2011-08-01
LK https://hdl.handle.net/20.500.14352/105939
UL https://hdl.handle.net/20.500.14352/105939
LA eng
NO Couso-Ferrer F, Arouri R, Beroiz B, Perera N, Cervera A, Navarro-Llopis V, et al. Cross-Resistance to Insecticides in a Malathion-Resistant Strain of Ceratitis capitata (Diptera: Tephritidae). jnl econ entom. 2011;104(4):1349-56
NO Ministerio de Educación y Ciencia (España)
DS Docta Complutense
RD 25 dic 2025