he implies that the fungus would be sprayed onto the cannabis in order to eat out the eyes of those who use it
Show me where the author implies intent.
You might also explain the "those who use it" part of your statement, since the article does not say that the mold is spread through the use of sprayed drugs (which are supposed to be killed by the mold), but instead hits the people in the areas where it is sprayed.
Argue all you want -- the headline, and the selection of paragraph order -- says different.
I've got to agree with r9etb. I think that if you examine the other stories in the original on-line publication, it has a pretty liberal viewpoint. If we disregard the pro-vs-anti pot issue for the moment, the general trend of the on-line publication is anti-establishment. People with this viewpoint tend to believe that the U.S. is the bad guy in all things.
Now pull in the juxtaposition of the "Kill the Pot"/"Eat the Eyes"/"Kill the Kids while you are at it" themes. Of course, every story needs a hero, so we get to bring in the wise and protective Columbian government. It seems to be a pretty transparent propaganda piece.
As I tried to convey above, there is a lot of unrelated and certainly not science-based information pulled together to create a nice hit piece. Most Freepers can see through the Islamist propaganda pretty clearly, this is the same tactic in a different subject area.