BACKGROUND: Bumble bees [Bombus impatiens (Cresson)] are widely used for supplemental pollination of greenhouse vegetables and are at risk of pesticide exposure while foraging. The objective of this study was to determine the lethal and sub-lethal effects of four insecticides (imidacloprid, abamectin, metaflumizone and chlorantraniliprole) and three fungicides (myclobutanil, potassium bicarbonate and cyprodinil + fludioxonil) used or with potential for use in Ontario greenhouse vegetable production to B. impatiens. RESULTS: Imidacloprid, abamectin, and metaflumizone were harmful to worker bees following direct contact, while chlorantraniliprole and all fungicides tested were harmless. Worker bees fed imidacloprid-contaminated pollen had shortened life spans and were unable to produce brood. Worker bees consumed less pollen contaminated with abamectin. Metaflumizone, chlorantraniliprole and all fungicides tested caused no sub-lethal effects in bumble bee micro-colonies. CONCLUSION: We conclude that the new reduced risk insecticides metaflumizone and chlorantraniliprole and the fungicides myclobutanil, potassium bicarbonate and cyprodinil + fludioxonil are safe for greenhouse use in the presence of bumble bees. This information can be used preserve greenhouse pollination programs while maintaining acceptable pest management.
BACKGROUND: Bumble bees [Bombus impatiens (Cresson)] are widely used for supplemental pollination of greenhouse vegetables and are at risk of pesticide exposure while foraging. The objective of this study was to determine the lethal and sub-lethal effects of four insecticides (imidacloprid, abamectin, metaflumizone and chlorantraniliprole) and three fungicides (myclobutanil, potassium bicarbonate and cyprodinil + fludioxonil) used or with potential for use in Ontario greenhouse vegetable production to B. impatiens. RESULTS:Imidacloprid, abamectin, and metaflumizone were harmful to worker bees following direct contact, while chlorantraniliprole and all fungicides tested were harmless. Worker bees fed imidacloprid-contaminated pollen had shortened life spans and were unable to produce brood. Worker bees consumed less pollen contaminated with abamectin. Metaflumizone, chlorantraniliprole and all fungicides tested caused no sub-lethal effects in bumble bee micro-colonies. CONCLUSION: We conclude that the new reduced risk insecticides metaflumizone and chlorantraniliprole and the fungicides myclobutanil, potassium bicarbonate and cyprodinil + fludioxonil are safe for greenhouse use in the presence of bumble bees. This information can be used preserve greenhouse pollination programs while maintaining acceptable pest management.
Authors: Shawn A Steffan; Prarthana S Dharampal; Luis Diaz-Garcia; Cameron R Currie; Juan Zalapa; Chris Todd Hittinger Journal: J Vis Exp Date: 2017-10-09 Impact factor: 1.355
Authors: Veerle Mommaerts; An Hagenaars; Johan Meyer; Wim De Coen; Luc Swevers; Hadi Mosallanejad; Guy Smagghe Journal: Ecotoxicology Date: 2011-01-21 Impact factor: 2.823
Authors: Michael D Coleman; John D O'Neil; Elizabeth K Woehrling; Oscar Bate Akide Ndunge; Eric J Hill; Andre Menache; Claude J Reiss Journal: PLoS One Date: 2012-08-03 Impact factor: 3.240
Authors: L W Pisa; V Amaral-Rogers; L P Belzunces; J M Bonmatin; C A Downs; D Goulson; D P Kreutzweiser; C Krupke; M Liess; M McField; C A Morrissey; D A Noome; J Settele; N Simon-Delso; J D Stark; J P Van der Sluijs; H Van Dyck; M Wiemers Journal: Environ Sci Pollut Res Int Date: 2014-09-17 Impact factor: 4.223