About Us | Help Videos | Contact Us | Subscriptions

Members of ASA, CSSA, and SSSA: Due to system upgrades, your subscriptions in the digital library will be unavailable from May 15th to May 22nd. We apologize for any inconvenience this may cause, and thank you for your patience. If you have any questions, please call our membership department at 608-273-8080.


Institutional Subscribers: Institutional subscription access will not be interrupted for existing subscribers who have access via IP authentication, though new subscriptions or changes will not be available during the upgrade period. For questions, please email us at: queries@dl.sciencesocieties.org or call Danielle Lynch: 608-268-4976.



This article in AJ

  1. Vol. 84 No. 5, p. 786-788
    Received: Mar 20, 1991

    * Corresponding author(s):
Request Permissions


Crabgrass Control In Coastal Bermudagrass

  1. A. E. Smith  and
  2. L. D. Martin
  1. U niv. of Georgia Col. of Agric. Exp. Stns., Georgia Stn., Griffin, GA 30223-1797
    M uresk Institute of Agriculture, Curtin University, Western Australia



Many hectares of ‘Coastal’ bennudagrass [Cynodon dactylon (L.) Pers.] stands are lost during the second growing season after planting because of competition from large crabgrass [Digitaria sanquinalis (L.) Scop]. Experiments were conducted in southern Georgia on a Cecil (thermic, Typic Hapludults) sandy clay loam and central Georgia on a Greenville (clayey, thermic, Rhodic Kandiudults) sandy loam soil to evaluate chemical treatments for managing large crabgrass in Coastal bermudagrass. Herbicide treatments were applied to Coastal bermudagrass stands during the second growing season after planting to evaluate crabgrass control and to fully established stands to determine treatment damage to the Coastal bermudagrass. Norflurazon {4-chloro- 5 - (methylamino)-2-[3 - (trifluoromethyl)phenyl] -3(2H)-pyridazinone} applied during March at rates of 1.12 and 2.24 kg ai ha−1 resulted in >80% control of large crabgrass up to 90 and 50 d after treatment, respectively. Treatments with norflurazon at rates as high as 2.24 kg −1 did not damage the Coastal bennudagrass stand or decrease yield compared to the untreated control. These data indicate that norflurazon would be an excellent candidate herbicide for use in the control of large crabgrass in Coastal bermudagrass pastures and hayfields.

  Please view the pdf by using the Full Text (PDF) link under 'View' to the left.

Copyright © .