Journal of Integrative Agriculture ›› 2016, Vol. 15 ›› Issue (2): 373-380.DOI: 10.1016/S2095-3119(15)61188-1

• 论文 • 上一篇    下一篇

Weed and insect control affected by mixing insecticides with glyphosate in cotton

 MA Xiao-yan, WU Han-wen, JIANG Wei-li, MA Ya-jie, MA Yan   

  1. 1 State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang 455000,
    P.R.China
    2 Wagga Wagga Agricultural Institute, NSW Department of Primary Industries, Wagga Wagga 2650, Australia
  • 收稿日期:2015-04-24 出版日期:2016-02-05 发布日期:2016-02-01
  • 通讯作者: MA Yan, Tel: +86-372-2562294,E-mail: aymayan@126.com
  • 作者简介:MA Xiao-yan, Tel: +86-372-2562297, E-mail: maxy_caas@126.com;
  • 基金资助:

    Financial support was provided by the Fundamental Research Funds for Central Public Welfare Research Institutes, China (SJB1202).

Weed and insect control affected by mixing insecticides with glyphosate in cotton

 MA Xiao-yan, WU Han-wen, JIANG Wei-li, MA Ya-jie, MA Yan   

  1. 1 State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang 455000,
    P.R.China
    2 Wagga Wagga Agricultural Institute, NSW Department of Primary Industries, Wagga Wagga 2650, Australia
  • Received:2015-04-24 Online:2016-02-05 Published:2016-02-01
  • Contact: MA Yan, Tel: +86-372-2562294,E-mail: aymayan@126.com
  • About author:MA Xiao-yan, Tel: +86-372-2562297, E-mail: maxy_caas@126.com;
  • Supported by:

    Financial support was provided by the Fundamental Research Funds for Central Public Welfare Research Institutes, China (SJB1202).

PDF

摘要： Field studies were conducted in 2012 and 2013 to evaluate weed and insect control efficacy with glyphosate at 1 230 g ai (active ingredient) ha–1 and the insecticides acephate (728 g ai ha–1), carbosulfan (135 g ai ha–1), endosulfan (683 g ai ha–1), imidacloprid (32 g ai ha–1), or lambda-cyhalothrin (23 g ai ha–1), as well as glyphosate tank-mixed with these insecticides. Four of the most common weeds in cotton, common purslane, false daisy, goosegrass, and lambsquarters, were manually sown in the cotton field and treated with glyphosate alone or in combination with insecticides. Glyphosate efficacy, based on visual estimates of control and weed fresh weight at 21 d after treatment (DAT), was unaffected by the addition of insecticides. Four weeds were controlled by 93–97% and 86–100% (visual rating) and reduced weed fresh biomass by 98–99% and 96–100% with glyphosate alone and its combination with insecticides, respectively. Addition of glyphosate to acephate improved cotton aphid control compared with acephate alone. However, addition of glyphosate to carbosulfan, endosulfan, imidacloprid, or lambda-cyhalothrin did not affect the aphid control when compared with the insecticide alone treatments. These results indicate that cotton producers could potentially integrate weed and insect management strategies by choosing suitable insecticide mixing partners with glyphosate, thereby reducing the application costs without sacrificing the efficacy of the glyphosate or the insecticides.

关键词: aphid , control efficacy , glyphosate-resistant cotton , herbicide-insecticide combinations , weed

Abstract: Field studies were conducted in 2012 and 2013 to evaluate weed and insect control efficacy with glyphosate at 1 230 g ai (active ingredient) ha–1 and the insecticides acephate (728 g ai ha–1), carbosulfan (135 g ai ha–1), endosulfan (683 g ai ha–1), imidacloprid (32 g ai ha–1), or lambda-cyhalothrin (23 g ai ha–1), as well as glyphosate tank-mixed with these insecticides. Four of the most common weeds in cotton, common purslane, false daisy, goosegrass, and lambsquarters, were manually sown in the cotton field and treated with glyphosate alone or in combination with insecticides. Glyphosate efficacy, based on visual estimates of control and weed fresh weight at 21 d after treatment (DAT), was unaffected by the addition of insecticides. Four weeds were controlled by 93–97% and 86–100% (visual rating) and reduced weed fresh biomass by 98–99% and 96–100% with glyphosate alone and its combination with insecticides, respectively. Addition of glyphosate to acephate improved cotton aphid control compared with acephate alone. However, addition of glyphosate to carbosulfan, endosulfan, imidacloprid, or lambda-cyhalothrin did not affect the aphid control when compared with the insecticide alone treatments. These results indicate that cotton producers could potentially integrate weed and insect management strategies by choosing suitable insecticide mixing partners with glyphosate, thereby reducing the application costs without sacrificing the efficacy of the glyphosate or the insecticides.

Key words: aphid , control efficacy , glyphosate-resistant cotton , herbicide-insecticide combinations , weed