Such crap. Cattle ranches are the leading cause of Amazon deforestation in Brazil. Logging (legal and illegal) is 2-3%.
Edit: Right, here's some numbers: http://www.mongabay.com/brazil.html
Edit: Right, here's some numbers: http://www.mongabay.com/brazil.html
That said, I doubt removing one gang will make much difference unless they change the system that allows ranchers to stay on illegally burned land.