@GrandfatherRat thank you.
That was really all I wanted. You guys are far to passionate.
As for the chemical not doing anything I'm not alone in using part c. Many other experienced growers use it and swear by it.
Weather poisonous or not it does increase the desity of the buds. I'm trying to find out why and how.
I'm sorry if I have offended anyone.
No offense taken, and you should be commended for asking for advice. You've hit some buttons here because we are really sensitive and passionate, as you say-- and use of certain chemicals for pot growing can provoke intense reactions in people (in both senses).
If you're serious, order another batch of this C, and have that tested-- it will be a better indicator of contamination level, and you can have it tested anywhere without sending pot to some lab.
This document has some info that applies- you may want to read it.
"Material Safety Data Sheet: Eagle 20EW - Specialty Fungicide."
Crop Data Management Systems. Crop Data Management Systems, Inc, 25 May 2012. Web. 5 May 2015. <
http://www.cdms.net>.
"Many other experienced growers use it and swear by it."
I'm sorry, but your standard of 'experienced' is clearly very different from mine. I can tell you that any grower who uses Myclobutanil is not in that class-- there's simply no need for using this known toxic chemical, unless you're an inadequate gardener. I personally know and interact with dozens of professional growers on a daily basis as part of my work. None of them use this chemical in the application you describe, and if they found they were using it unknowingly that way, they would stop immediately. It's a violation of the law to do so, and disregards the safety data, first off. That really should be the end of the conversation.
However, I will address your claim that Myclobutanil boosted your yield. You present absolutely no evidence to back this up, and extravagant claims require comprehensive evidence. You've offered nothing but your anecdotal experience, backed by no notes, no photos, no written journal or log of what you did to the plants on any consistent basis. Without this support, you are in no position to make such a claim, or any claim about your yield, because you have no record of what you actually did to effect that yield. This is perfectly ok for a novice grower, or even an experienced grower-- not everyone has to keep mad notes, and I've seen great growers who write nothing down, and work entirely on instinct. But-- if you're going to come around here and make categorical statements about the use of chemicals which you're already admitted you know absolutely nothing about-- well then, son, you better prepare to get schooled