Dandelions and Eclipse

[ado089]

Don't use a full litre at once on your canola, it will knock it back hard and you will see a big difference were you miss especialy when the crop is stressed like it is now. A split app of 1/2 litre 2 weeks apart will do a verry good job and won't harm the crop. Adding a penetrator/pH adjuster like LI 700 will help get a better kill as well. Lontrel will fix your problem but only for this year. The lable says suppression because most of them will continue to grow next spring but regardless it will fix your problem for this year. The only time that you can kill perenials is the fall. 3/4L of glyphosate or more plus something like prepass or express.

[wd9]

I think she never used lontrel cuz its only suppression. Regrowth occurs from rootstock. the idea is to kill that perennial and not just visualy kill the top delaying regrowth. I will ask to confirm. Again, different biotypes behave differently. Its a wildly diverse plant which is why they are everywhere.

But i agree, spraying vantage is better than not at all.

[rook]

thanks for all your replies

ten years ago we never had problems with dandelions - a sweep is very effective on them but I don't have the time or will to go back to that method

Eclipse is expensive, about $700/case for 40 acres and that's where the issue comes in as it is much cheaper to put on more Roundup but then you run into crop tolerance issues. Oh well, whatever I decide usually turns out to be the wrong way! Compared to others it sounds like I'm fortunate to have a crop to spray in the first place.

[furrowtickler]

A very informative post for once, well done guys!

[Choice2U]

I disagree that a sweep is good. I have a neighbour that farms 50/50 with shovels on SF and he has the worst dandelions in the country. He did one round of some kind of spray last fall and you can see the line at midnight with no moon. In season, keep in check, fall application to try and kill.

[ado089]

Sweeps have a tendancy to turn one dandelion into two. I've seen it several times in wetter years where a guy has used sweep on dandelion infested fields only to have the root push up a new plant and the chopped off top shoot new roots and continue to grow.