title: Comment on "A common pesticide decreases foraging success and survival in honey bees".
abstract: Henry et al. (Reports, 20 April, p. 348) used a model to predict that colony collapse in honey bees could be precipitated by pesticide-induced intoxication that disrupts navigation. Here, we show that collapse disappears when the model is recalculated with parameter values appropriate to the season when most pesticide-treated flowering crops bloom.
authors.affiliation: Biosciences, College of Life and Environmental Sciences, University of Exeter, Geoffrey Pope Building, Stocker Road, Exeter EX4 4QD, UK. j.e.cresswell@ex.ac.uk
authors.forename: James E
authors.initials: JE
authors.lastname: Cresswell
authors.forename: Helen M
authors.initials: HM
authors.lastname: Thompson
mesh_terms: D000818:Animals; D001516:Bees / Q000187:drug effects* / Q000502:physiology*; D056631:Colony Collapse; D005260:Female; D006702:Homing Behavior / Q000187:drug effects*; D007306:Insecticides / Q000633:toxicity*; D008297:Male; D009574:Nitro Compounds / Q000633:toxicity*; D010078:Oxazines / Q000633:toxicity*; D013844:Thiazoles / Q000633:toxicity*
chemical_list: D007306:Insecticides; D009574:Nitro Compounds; D010078:Oxazines; D013844:Thiazoles