Effectiveness of twelve insecticides applied topically to diapausing larvae of the codling moth, Cydia pomonella L.
Dose-mortality curves were established for 12 insecticides administered by topical application to diapausing larvae from a susceptible codling moth strain. Toxicity varied greatly among the insecticides tested. LC50 values ranged from 0.1 mg kg(-1) for fenoxycarb to over 2800 mg kg(-1) for diflubenzuron and indoxacarb. Discriminating dose levels were determined from dose-mortality reference curves for the detection of resistance in field-collected diapausing larvae.
Pasquier
Denis
D
Swiss Federal Research Station for Plant Production, Changins, CH-1260 Nyon, Switzerland. denis.pasquier@rac.admin.ch
Charmillot
Pierre-Joseph
PJ
D000818:Animals; D002219:Carbamates / Q000633:toxicity; D004132:Diflubenzuron / Q000633:toxicity; D007306:Insecticides / Q000633:toxicity*; D007814:Larva / Q000187:drug effects / Q000378:metabolism*; D007928:Lethal Dose 50; D009036:Moths / Q000187:drug effects / Q000378:metabolism*; D010078:Oxazines / Q000633:toxicity; D048448:Phenylcarbamates
D002219:Carbamates; D007306:Insecticides; D010078:Oxazines; D048448:Phenylcarbamates; C401104:indoxacarb; D004132:Diflubenzuron; C052034:fenoxycarb