Methiozolin [5-(2,6-difluorobenzyl)oxymethyl-5-methyl-3,3(3-methylthiophen-2-yl)-1,2-isoxazoline], a new annual bluegrass (Poa annuaL.) herbicide for turfgrasses

Pest Management ScienceVolume 70, Issue 1 p. 156-162 Research Article Methiozolin [5-(2,6-difluorobenzyl)oxymethyl-5-methyl-3,3(3-methylthiophen-2-yl)-1,2-isoxazoline], a new annual bluegrass (Poa annua L.) herbicide for turfgrasses Suk-Jin Koo, Corresponding Author Suk-Jin Koo Moghu Research Center Ltd, BVC 311, KRIBB, Yuseong, Daejeon, 305-333 Korea Correspondence to: Suk-Jin Koo, Moghu Research Center Ltd., BVC 311, KRIBB, Yuseong, Daejeon, 305–333, Korea. E-mail: [email protected]Search for more papers by this authorKi-Hwan Hwang, Ki-Hwan Hwang Moghu Research Center Ltd, BVC 311, KRIBB, Yuseong, Daejeon, 305-333 KoreaSearch for more papers by this authorMan-Seok Jeon, Man-Seok Jeon Moghu Research Center Ltd, BVC 311, KRIBB, Yuseong, Daejeon, 305-333 KoreaSearch for more papers by this authorSung-Hun Kim, Sung-Hun Kim Moghu Research Center Ltd, BVC 311, KRIBB, Yuseong, Daejeon, 305-333 KoreaSearch for more papers by this authorJongsoo Lim, Jongsoo Lim Moghu Research Center Ltd, BVC 311, KRIBB, Yuseong, Daejeon, 305-333 KoreaSearch for more papers by this authorDong-Guk Lee, Dong-Guk Lee Moghu Research Center Ltd, BVC 311, KRIBB, Yuseong, Daejeon, 305-333 KoreaSearch for more papers by this authorNam-Gyu Cho, Nam-Gyu Cho Moghu Research Center Ltd, BVC 311, KRIBB, Yuseong, Daejeon, 305-333 KoreaSearch for more papers by this author Suk-Jin Koo, Corresponding Author Suk-Jin Koo Moghu Research Center Ltd, BVC 311, KRIBB, Yuseong, Daejeon, 305-333 Korea Correspondence to: Suk-Jin Koo, Moghu Research Center Ltd., BVC 311, KRIBB, Yuseong, Daejeon, 305–333, Korea. E-mail: [email protected]Search for more papers by this authorKi-Hwan Hwang, Ki-Hwan Hwang Moghu Research Center Ltd, BVC 311, KRIBB, Yuseong, Daejeon, 305-333 KoreaSearch for more papers by this authorMan-Seok Jeon, Man-Seok Jeon Moghu Research Center Ltd, BVC 311, KRIBB, Yuseong, Daejeon, 305-333 KoreaSearch for more papers by this authorSung-Hun Kim, Sung-Hun Kim Moghu Research Center Ltd, BVC 311, KRIBB, Yuseong, Daejeon, 305-333 KoreaSearch for more papers by this authorJongsoo Lim, Jongsoo Lim Moghu Research Center Ltd, BVC 311, KRIBB, Yuseong, Daejeon, 305-333 KoreaSearch for more papers by this authorDong-Guk Lee, Dong-Guk Lee Moghu Research Center Ltd, BVC 311, KRIBB, Yuseong, Daejeon, 305-333 KoreaSearch for more papers by this authorNam-Gyu Cho, Nam-Gyu Cho Moghu Research Center Ltd, BVC 311, KRIBB, Yuseong, Daejeon, 305-333 KoreaSearch for more papers by this author First published: 23 March 2013 https://doi.org/10.1002/ps.3541Citations: 23Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinkedInRedditWechat Abstract BACKGROUND Selective control of annual bluegrass (Poa annual L.) has been difficult in turfgrasses. The potential of methiozolin in this area was investigated. RESULTS Methiozolin was safe on established zoysiagrass (Zoysia japonica Steud.), creeping bentgrass (Agrostis palustris Huds.), Kentucky bluegrass (Poa pratensis L.), and perennial ryegrass (Lolium perenne L.) at 1000 g ha−1, and controlled annual bluegrass with GR50 values of 23, 52, 104, and 218 g ha−1 at PRE, two-, four- and eight-leaf stage, respectively, in the greenhouse. When applied at early flowering, methiozolin suppressed >80% of annual bluegrass seed heads at 2000 g ha−1. 14C-Methiozolin was readily absorbed by both leaves and roots, but translocation was mainly acropetal. No herbicidal activity resulted from application to the leaf only; however, application to the soil surface only showed equivalent herbicidal activity to that of broadcast application to the leaf and soil. Methiozolin at 500 to 1000 g ha−1 provided 80 to 100% control of annual bluegrass when applied in the fall with acceptable and temporary injury to creeping bentgrass, and about 60% control when applied in the spring with no bentgrass injury in the field. CONCLUSION Methiozolin is an excellent candidate for annual bluegrass management in turfgrasses. © 2013 Society of Chemical Industry Citing Literature Volume70, Issue1January 2014Pages 156-162 RelatedInformation