I just went back and got the actual data of what was found in New Brunswick in the second year of the study looking at bees in canola fields following potatoes.   Please note that thiamethoxam is another neonicotinoid that is manufactured by Syngenta.  It was put right on the canola seed as a systemic insecticide.    But the imidacloprid was coming up from the soil from the previous years potatoes.
 
You will note Jerry, that bees were analyzed apparently.


      Thiamethoxam (ppb)
     
      Field
     Unripe Honey
     Pollen
     Wax
     Bees
     Flowers
     
      T1
     6.60
     0.57
     2.40
     <0.50
     0.82
     
      T2N
     1.60
     <0.50
     0.59
     <0.50
     1.40
     
      T2S
     4.30
     0.93
     0.73
     <0.50
     5.40
     
      BLM*
     3.10
     1.50
     2.40
     <0.50
     8.30
     
       
      
      
      
      
      
     
      * Flower samples in BLM analyzed three times; results were 2.40, 7.30, and 8.30 ppb.
     

 

 

 

      Imidacloprid (ppb)
     
      Field Honey
     Pollen
     Wax
     Bees
     Flowers
     
      T1 2.90
     2.50
     <0.50
     <0.50
     1.10
     
      T2N
     2.60
     2.40
     <0.50
     <0.50
     2.00
     
      T2S
     3.30
     1.60
     <0.50
     <0.50
     1.70
     
      Blm
     1.00
     <0.50
     <0.50
     <0.50
     0.00
     

 

 


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