Crambe tolerance to preplant and postemergence herbicides

North Dakota State University

NDSU

North Central Research Extension Center

Brian Jenks Weed Scientist bjenks@ndsuext.nodak.edu
Denise Markle Research Specialist dmarkle@ndsuext.nodak.edu	Gary Willoughby Research Specialist gwillough@ndsuext.nodak.edu

5400 Highway 83 South
Minot, ND 58701-7662
701.857.7679
701.857.7676 (fax)

Study Name: Crambe tolerance to preplant and postemergence herbicides

Study Number: 9910

Objectives: Evaluate crambe tolerance to registered and experimental herbicides

Results: Essentially all treatments caused some stand reduction or injury to the crambe. Looking at the crambe yields, it appears that the crambe recovered to a certain extent from the herbicide injury. Most surprising were the yields for Clarity and Liberty. These plots yielded well despite extensive injury caused by Clarity and Liberty. However, the test weight for these treatments were generally much lower compared to other treatments.

Table. Crambe tolerance to preplant and postemergence herbicides.

		June 19	August 18
Treatment	Rate	Crambe Injury (%)	Crambe Injury (%)	Crambe Yield (lb/A)	Crambe Test Weight
Untreated		0	0	1246	25.8
Treflan	1.0 lb ai	5	4	1380	25.6
Sonalan	1.125 lb ai	33	20	1336	26.1
Prowl	1.5 lb ai	18	12	1241	25.2
Frontier	1.5 lb ai	35	33	1209	25.8
Dual Magnum	2 lb ai	28	23	1198	25.6
Stinger	0.035 lb ai	5	8	1297	26.2
Stinger	0.125 lb ai	9	10	1349	26.4
Tough	2 pt	37	32	1290	26.7
Tough + NIS	2 pt + 0.25%	33	23	1261	25.1
Herbicide 273	0.56 lb ai	23	13	1321	26.8
Muster +	0.019 lb ai	18	8	1254	26.1
Assure II +	8 fl oz
Herbimax	0.25%
Muster +	0.019 lb ai	7	4	1310	25.7
Herbimax	1%
Paramount +	0.140 lb ai	8	5	1244	25.2
MSO	24 fl oz
Paramount +	0.188 lb ai	9	16	1290	25.5
MSO	24 fl oz
Clarity	2 fl oz	63	53	1187	24.6
Clarity	2 fl oz	50	78	901	24.1
Liberty	20 fl oz	80	75	1175	26.1
Liberty	34 fl oz	83	79	1015	24.2
LSD		10	15	226	1.7
CV		22	35	11	4

Last Updated: Thursday, May 27, 2004 02:49:18 PM
Published by North Dakota State University