Choosing canola varieties

[Guest]

try to use a different group in cereals

[ColevilleH2S]

Does Pyrasulfotole in Velocity M3 have and grassy weed activity?

[freewheat]

Thing is too, when mixing liberty with a group one, it is far better to do that than to use a group one alone for resistance avoidance. So IMO, the concern is not much of an issue.

[farmaholic]

Agricultural use[edit]
Pyrazolate, pyrazoxyfen and benzofenap were first commercialized in the Japanese rice market starting in 1980, but became less important when sulfonylurea herbicides were introduced. In 1990 sulcotrione was introduced for post- emergence weed control in corn. Isoxaflutole opened the market more broadly for HPPD inhibitors when it was introduced in 1996 for corn and sugarcane, and for use as a pre-emergence herbicide that could control broadleaf weeds as did sulcotrione, but also additional grass weeds. Benzobicyclon, was introduced in 2001 for control of broadleaf weeds and some sedges that are problems in rice, that had become resistant to sulfonylurea herbicides. Mesotrione was introduced in 2002 and like sulcotrione is a triketone, so it is effective on the same weeds and crops, but is more potent, making it more useful in mixes with other herbicides - an important for factor for fulling controlling weeds and preventing the development of resistance. It has become the biggest selling member of the HPPD class.[1]

Topramezone was introduced in 2006 for corn and soy, and is the most potent HPPD inhibitor, but has serious carry-over issues especially for soybean in US, where the minimum time from application to planting is 18 months. Tembotrione was introduced in 2007 for corn, and works against key grass species and importantly, kills broadleaf weeds, including glyphosate-, ALS- and dicamba-resistant weeds. Used with safeners there are no crop-rotation restrictions. Pyrasulfotole was also introduced in 2007 for cereals in North America, and was the first new class of herbicide in cereals in many years, and an important advance against weeds that had become resistant to existing herbicides. It remains active in the soil during the growing season and when used with safeners, it does not damage crops and there are no crop-rotation restrictions.[1]

[farmaholic]

Sorry, it is only the group 2 in Velocity not the group 27. Supposedly not even any synergy between the two for wild oats but there is for the broadleaves.

My apologies

[tweety]

freewheat, how science based is that opinion?

Since liberty often does such a poor job on grassy's, its like spraying only a group 1.

[fjlip]

Invigor varieties always look better from the road, huge TALL plants. They use up nutrients for a huge plant but deplete the soil. But ? in the bin? Weed control is variable, neighbors try every liberty rate and combo, still have cleavers. We just stick with RR, two pass, Dekalb a good average, looks smaller plant but always surprises with combine. All varieties are now about or- 2bu/acre, each has a better trait NONE are perfect. Good luck.

[freewheat]

Tweety, there must be a fair amount of synergy with clethodim based on the recommended rates in the guide.

[freewheat]

Half the light rate when using it alone.

[Guest]

free , I use to think like you , but I think we found some resistant oats in cereals this year after liberty and cent last year .