Skip to main content Accessibility help

Determining Seasonal Emergence and Control Programs for Henbit (Lamium amplexicaule L.)

  • Brandi C. Woolam (a1), Daniel O. Stephenson (a2) and David C. Blouin (a3)


Henbit is a winter annual weed that is not effectively controlled by spring-applied herbicide applications. Research was conducted to determine henbit’s emergence pattern and whether fall-applied residual herbicides would be effective for henbit control in the spring. Henbit emerges in Louisiana from late October through March, but emergence predominantly occurs in the last week of October through the first week of December. Applying paraquat plus flumioxazin, oxyfluorfen, or rimsulfuron:thifensulfuron November 1 through December 15 provided better than 90% henbit control in March. Applying paraquat plus S-metolachlor on November 15 or December 1 provided 92% henbit control, which was similar to flumioxazin, oxyfluorfen, and rimsulfuron:thifensulfuron. The addition of flumioxazin, oxyfluorfen, or rimsulfuron:thifensulfuron to paraquat reduced the height of henbit plants by 4% to 22% of nontreated plants when applied November 1 through December 15. These studies indicate that crop producers can achieve control of henbit in March following November 1 through December 15 applications of paraquat plus flumioxazin or rimsulfuron:thifensulfuron; however, paraquat plus oxyfluorfen can be applied October 15 through December 15 to achieve similar control.


Corresponding author

*Author for correspondence: Daniel O. Stephenson, IV, Professor, Louisiana State University Agricultural Center, Dean Lee Research and Extension Center, 8105 Tom Bowman Drive, Alexandria, LA 71302. (E-mail:


Hide All
Baldwin, FL, Frans, RE (1972) Soybean and weed response to dinoseb and chloroxuron applied topically. Weed Sci 20:511514
Barrentine, WL (1989) Minimum effective rate of chlorimuron and imazaquin applied to common cocklebur (Xanthium strumarium). Weed Technol 3:126130
Baskin, JM, Baskin, CC (1981) Seasonal changes in the germination responses of buried Lamium amplexicaule seeds. Weed Res 21:299306
Baskin, JM, Baskin, CC (1984) Effect of temperature during burial on dormant and non-dormant seeds of Lamium amplexicaule L. and ecological implications. Weed Res 24:333339
Baskin, JM, Baskin, CC, Parr, JC (1986) Field emergence of Lamium amplexicaule L. and L. purpureum L. in relation to the annual seed dormancy cycle. Weed Res 26:185190
Bernards, ML, Sandell, LD (2011) Control winter annual weed early to protect crop yield. University of Nebraska–Lincoln Cropwatch. Accessed: November 20, 2017
Blackshaw, RE, Brandt, R, Entz, T (2002) Soil temperature and soil water effect on henbit emergence. Weed Sci 50:494497
Bond, JA, Eubank, TW, Bond, RC, Golden, BR, Edwards, HM (2014) Glyphosate-resistant Italian ryegrass (Lolium perenne ssp. multiflorum) control with fall-applied residual herbicides. Weed Technol 28:3611340
Creech, JE, Webb, JS, Young, BG, Bond, JP, Harrison, SK, Ferris, VR, Faghihi, J, Westpaul, A, Johnson, WG (2007) Development of soybean cyst nematodes on henbit (Lamium amplexicaule L.) and purple deadnettle (Lamium purpureum L.). Weed Technol 21:10641070
DeFelice, MS, Brown, WB, Aldrich, RJ, Sims, BD, Judy, DT, Guetble, DR (1989) Weed control in soybeans (Glycine max) with reduced rates of postemergence herbicides. Weed Sci 37:365374
Hasty, RF, Sprague, CL, Hager, AG (2004) Weed control with fall and early preplant herbicide applications in no-till soybean. Weed Technol 18:887892
Holm, L, Doll, J, Holm, E, Poncho, J, Herberger, J eds. (1997) World Wide Weeds: Natural Histories and Distribution 1st edn. New York: John Wiley & Sons. Pp 424428
Kawate, MK, Colwell, SG, Ogg, AG Jr., Kraft, JM (1997) Effect of glyphosate-treated henbit (Lamium amplexicaule) and downy brome (Bromus tectorum) on Fusarium solani f. sp. pisi and Pythium ultimum . Weed Sci 45:739743
Krausz, RF, Young, BG, Matthews, JL (2003) Winter annual weed control with fall-applied corn (Zea mays) herbicides. Weed Technol 17:516520
Miller, TE (1987) Effects of emergence time on survival and growth in an early old-field plant community. Oecol 72:272278
Monnig, N, Bradley, KW (2007) Influence of fall and early spring herbicide applications on winter and summer annual weed populations in no till soybeans. Weed Technol 21:724731
Roberts, HA, Boddrell, JE (1983) Seed survival and periodicity of seedling emergence in ten species of annual weeds. Ann Appl Biol 102:523532
Smith, JF, Catchot, AL, Musser, FR, Gore, J (2013) Survey of twospotted spider mite (Acari: Tetranychidae) host plants in the Mississippi Delta. Entomol Sci 48:279290
Stougaard, RN, Kapusta, G, Roskamp, G (1984) Early preplant herbicide applications for no-till soybean (Glycine max) weed control. Weed Sci 32:293298
Venkatesh, R, Harrison, SK, Riedel, RM (2000) Weed hosts of soybean cyst nematode (Heterodera glycines) in Ohio. Weed Technol 14:156160
Webster, TM (2013) Weed Survey–Southern States–Broadleaf Crops Subsection. Pages 275–287 in Proceedings of the Southern Weed Science Society. Houston, TX: Southern Weed Science Society
Werle, R, Bernards, ML, Giesler, LJ, Lindquist, JL (2013) Influence of two herbicides on soybean cyst nematodes (Heterodera glycines) reproduction on henbit (Lamium amplexicaule) roots. Weed Technol 27:4146
Young, BG, Krausz, RE. (2001) Fall herbicide applications in corn and soybean. Page 35 in Proceedings of the North Central Weed Science Society. Milwaukee, WI: North Central Weed Science Society


Determining Seasonal Emergence and Control Programs for Henbit (Lamium amplexicaule L.)

  • Brandi C. Woolam (a1), Daniel O. Stephenson (a2) and David C. Blouin (a3)


Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed