shakerator
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21 degrees I've been told ?
Would you go at 25 if just strob as chlorthalonil (drop out triazole for later)
Would you go at 25 if just strob as chlorthalonil (drop out triazole for later)
Same here. Nuts!There going around here 27 degrees and a howling wind madness!
There going around here 27degrees and a howling wind madness!
Some of the labels stipulate 20CWouldn't that depend on the solvent still being there to help penetrate the cuticle? I'm sure the formulation boffins have thought of this.
Some of the labels stipulate 20C
Just possibly they may have found that the effectiveness of their active has reduced above 23-24C so to be safe are quoting 20-21C so that if you complain about ineffectiveness they will ask you what day and time you sprayed and say you were outside label parameters. It would have to be fairly obvious that if the science says crops shut down above a certain temp then systemics are unlikely to work as well as in ideal conditions. If you are not going to spray when its raining then why spray when the surface temperature of the leaf is in the high 30's.Yes, but labels are also written by lawyers with an eye to litigious farmers grumbling and complaining about anything that might affect their crop.