Monitoring effects of thiamethoxam applied as a seed treatment to winter oilseed rape on development of bumble bee (Bombus terrestris) colonies
Pest management science | 22 Dec 2015
H Thompson, M Coulson, N Ruddle, S Wilkins, P Harrington and S Harkin
The development of bumble bee (Bombus terrestris audax) colonies which had foraged for 5 weeks on flowering winter oilseed rape grown from seed treated with thiamethoxam (as Cruiser OSR) was assessed (2 control, 1 treated field). Colony development was evaluated by monitoring the colony mass, forager activity was assessed, both at the hive and within the crop, and the contribution of oilseed rape to the pollen stored within the colony was analysed.
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