Herbicides screening for chemical control of Monochoria, the invasive weed, (Monochoria vaginalis) in paddy rice

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HAZRATI ZAHRA; YAGHOUBI BIJAN; ASGHARI JAFAR

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Journal: IRANIAN JOURNAL OF WEED SCIENCE Year:2019 | Volume:15 | Issue:1 Page(s): 17-28

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Title

Herbicides screening for chemical control of Monochoria, the invasive weed, (Monochoria vaginalis) in paddy rice

Author(s)

HAZRATI ZAHRA | YAGHOUBI BIJAN | ASGHARI JAFAR | Issue Writer Certificate

Keywords

Broadleaf killerQ1

foliar appliedQ2

riceQ2

soil appliedQ1

Abstract

Monochoria vaginalis is an invasive weed of paddy rice fields and now has infested tens of thousands of hectares of rice fields in north, three decades after being reported for the first time in Iran. Late emergence, fast growing under rice canopy, flood tolerance and completion of life cycle after rice harvesting, allows monochoria to survive and escape from the common weed management practices in paddy rice. The efficacy of some herbicides for chemical control of monochoria in pot and field conditions were investigated in rice Research Institute of Iran in 2017. The results of pot experiment showed that early post application (2-3 leaf stage) of soil applied herbicides including flucetosulfuron, pyrazosulfuron, benzobicyclon, pyrazosulfuron + quinclorac, triafamone + ethoxysulfuron controlled monochoria effectively (≥ 90%). Other herbicides including ipfencarbazone, thiobencarb, pendimethalin, pretilachlor, oxadiargyl and pyrazosulfuron (WG 75%) with 55% reduction in monochoria biomass were not satisfactorily effective. In the field experiment, foliar application of 2, 4-D, dicamba + 2, 4-D, bispyribacsodium, pyribenzoxim and triafamone + ethoxysulfuron reduced monochoria biomass 90% While propanil with 23% control had a poor performance in controlling of his weed.

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APA: Copy

HAZRATI, ZAHRA, YAGHOUBI, BIJAN, & ASGHARI, JAFAR. (2019). Herbicides screening for chemical control of Monochoria, the invasive weed, (Monochoria vaginalis) in paddy rice. IRANIAN JOURNAL OF WEED SCIENCE, 15(1 ), 17-28. SID. https://sid.ir/paper/185147/en

Vancouver: Copy

HAZRATI ZAHRA, YAGHOUBI BIJAN, ASGHARI JAFAR. Herbicides screening for chemical control of Monochoria, the invasive weed, (Monochoria vaginalis) in paddy rice. IRANIAN JOURNAL OF WEED SCIENCE[Internet]. 2019;15(1 ):17-28. Available from: https://sid.ir/paper/185147/en

IEEE: Copy

ZAHRA HAZRATI, BIJAN YAGHOUBI, and JAFAR ASGHARI, “Herbicides screening for chemical control of Monochoria, the invasive weed, (Monochoria vaginalis) in paddy rice,” IRANIAN JOURNAL OF WEED SCIENCE, vol. 15, no. 1 , pp. 17–28, 2019, [Online]. Available: https://sid.ir/paper/185147/en

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