Author:
Meyers Stephen L.,Jennings Katherine M.,Monks David W.,Jordan David L.,Ballington James R.
Abstract
Greenhouse studies were conducted in Raleigh, NC to determine Carolina redroot control by selected PRE and POST herbicides labeled for blueberries. Paraquat, glufosinate, glyphosate, and flumioxazin provided some Carolina redroot shoot control 7 d after POST application (DAPOST) ranging from 48 to 74%. Control 25 DAPOST was greatest for hexazinone at 2.2 kg ai ha−1(90%) followed by glufosinate with 56% control and paraquat and terbacil each with 53% control. Control for most treatments declined between 25 and 63 DAPOST with the exception of glyphosate, which increased to 64%. Carolina redroot shoots per pot were reduced by terbacil, hexazinone at 2.2 kg ha−1, and glyphosate compared with the nontreated check 63 DAPOST. Control of Carolina redroot roots and rhizomes 63 DAPOST ranged from 7 to 68%, with the greatest control provided by terbacil (68%) and hexazinone at 2.2 kg ha−1(64%). Terbacil and hexazinone at 2.2 kg ha−1were the only treatments that reduced both shoot and root/rhizome dry weight compared with the nontreated check.
Publisher
Cambridge University Press (CUP)
Subject
Plant Science,Agronomy and Crop Science
Reference12 articles.
1. The control of redroot (Lachnanthes tinctoria). Proceedings of the Northeastern Weed Science Society. Northeast;Welker;Weed Sci. Soc.,1979
2. Monaco T. J. , 1970. Weed Control Investigations in Horticultural Crops 1969–1970. Raleigh, NC: NC State University. Pp. 24–35.
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