Systemic Poison and mycorrhizae?

[Dan W.]

Does anyone know how or if systemc insecticide affects mycorrhizae? Also fungicide?

 

[Eric Schrader]

Didn't this come up recently in another thread? I think it was some warning about Bayer systemic that someone wrote. I'm guessing that systemic fungicide would affect micorrhizae. Systemic insecticide should not affect fungal relationships but who knows - you have to devise an experiment and conduct it to find out things like this. I could almost guarantee that all the research done on these compounds was as they apply to food crops and increases in yields. There is little to no motivation for most scientists to study the effect of insecticide on symbiotic fungal relationships.

Check out this report, about the active fungicide ingredient in Bayer tree and shrub which is absorbed by plants and thus systemic:

http://www.fao.org/ag/agp/agpp/Pesticid/JMPR/Download/94_eva/tebucona.pdf