Journal of Zhejiang Agricultural Sciences ›› 2025, Vol. 66 ›› Issue (9): 2230-2234.DOI: 10.16178/j.issn.0528-9017.20240739

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Several types of stem and leaf herbicides for the control effect of weeds in wheat fields in southern Zhejiang

FENG Yifu1(), NI Ming2, WANG Zhizhou3, CHEN Hong4, FANG Hui4,*()   

  1. 1. Yongquan Town Comprehensive Agricultural Service Center of Linhai City, Linhai 317000, Zhejiang
    2. Syngenta Group Co., Ltd., Nanjing 210000, Jiangsu
    3. Datian Subdistrict Agricultural Public Service Center of Linhai City, Linhai 317000, Zhejiang
    4. Agricultural Technology Extension Center, Linhai 317000,Zhejiang
  • Received:2024-09-23 Online:2025-09-11 Published:2025-10-14

Abstract:

To improve the effectiveness of weed control in wheat fields and to determine its safety and weed control effects, a comparative experiment on the effect of different stem and leaf herbicides treatments for controlling weeds in wheat fields was conducted during the 3-leaf and 1-heart stage of wheat (when the dominant weed species, Alopecurus aequalis, is at the 2-leaf and 1-heart stage). The results showed that the control effect of manual spray treatment was superior to that of aerial spray treatment. When 5% azolinoxin emulsified oil (2 250 mL·hm-2) was applied in the wheat field where the absolute dominant weed population was Alopecurus aequalis, its plant control effect and fresh weight control effect against Alopecurus aequalis for 60 days was 100.00%, and the overall control effect against the weed population was over 90.00%. And the plant control effect and fresh weight control effect against the weed population of 107 g·L-1 pinoxaden triple pre-mix emulsifiable concentrate(1 950 mL·hm-2) or a combination of 5% pinoxaden emulsifiable concentrate(1 500 mL·hm-2)+200 g·L-1 fluroxypyr emulsifiable concentrate(900 mL·hm-2) was over 95.00% weed control effect. In contrast, the application of fenoxaprop-P-ethyl provided low or negative effect against the Alopecurus aequalis population in the test field, and it is not recommended for application as a stem and leaf treatment herbicide in wheat fields dominated by Alopecurus aequalis.

Key words: southern Zhejiang, wheat field weeds, stem and leaf herbicides, control effect

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