Re: Clopralid (Alligare)
iris@hort.net
  • Subject: Re: Clopralid (Alligare)
  • From: L* M* <l*@lock-net.com>
  • Date: Tue, 28 May 2013 16:52:48 -0400
Shaub, the worst weed infestation out there right now is wingstem (Verbesina). It makes a tall, dense canopy, and has a very strong root system, so is not good for the irises and is hard to grub out. I spot sprayed it with Alligare 3 day before yesterday when it was sunny and relatively hot. By the next afternoon, the tops had wilted down. Very satisfying.
If it works on wingstem the way it seemed to work on vetch, it will stall the stuff immediately, but take quite a long time to actually kill the plant. I'm hoping it will go a bit faster in this warmer, sunnier weather.
The vetch kill was interesting - it seemed to get worse as time went on, & no new vetchlings have appeared. Be interesting to see what happens with it this winter.
Clover, creeping white, does seem to be more resistant, but I think it has been gradually killing it as well.
No sign of illness in the sorrel (Rumex acetosa) yet, in spite of a pretty good wetting with Alligare. :-( I've tried pulling, digging, repeatedly, and just can't get rid of the stuff in one short section of row. & now it's starting to spread. 

I'll let you know how it goes with the clover.

I'm not familiar with pendimethalin.

Linda Mann east TN USA zone 7b

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