Synergism:
Has anyone ever seen any sort of science
to support this highly creative viewpoint?

YES!
Actually there is a whole category of statistics that is used to  
elucidate when the sum of factors is larger than the sum of the  
components often used in insecticide mix studies.

I posted a while back that there have been studies on insect  
pathogenic fungi that conclude that imidacloprids have been shown to  
cause a synergistic response with certain fungi (Beauvaria  
bassiana).  See Wraight S.P. et al.  I would suggested that  
iimidacloprid might increase the detrimental effects of Nosema ( now  
considered a fungus) on the host.

The mechanism is not yet determined but the effect is being exploited  
to enhance the fungicide effect.  The idea is to use a little  
imidacloprid and thus less fungus to maintain high kills of target  
insects.  Overall it decreases the cost by decreasing the amount of  
product used.  Decreased amounts of this insecticide in combination  
with the fungus has a higher effect than the sum of the products used  
individually--basically use less of both to reduce the pest  
population to below economic threshold.

MIke

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