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Interactions between rodents and weeds in a lowland rice agro-ecosystem:the need for an integrated approach to management

引用

Integrative Zoology 2019年第4期14卷 396-409页

作者： nyo me htwe Grant R.SINGLETON David E.JOHNSON Plant Protection Division Department of AgricultureMinistry of AgricultureLivestock and IrrigationMyanmar International Rice Research Institute DAPO Box 7777Metro ManilaPhilippines Natural Resources Institute University of GreenwichChatham MaritimeKentUK

Rodents and weeds are important pests to rice crops in Southeast *** interaction between these 2 major pests is poorly *** temperate cereal systems,seeds of grass weeds can be an important food source for rodents and weed cover along crop margins provides important refuge for *** 2012 and 2013,a replicated study(n=4)in Bago,Myanmar compared 4 treatments(rodents and weeds;no rodents and weeds;rodents and no weeds;no rodents and no weeds)each of 0.25 ha in transplanted *** were managed with hand weeding in the wet season,and hand weeding and herbicides in the dry *** fences were installed to exclude *** examined the weed cover and relative abundance of weed species,rodent damage,rodent population dynamics and rice yield loss caused by rodents and *** dominant rodent species was Bandicota *** the dry season,Cyperus difformis was dominant at the tillering stage and Echinochloa crus-galli was the dominant weed species at the booting *** the wet season ***-galli was a dominant weed throughout the *** by rodents was higher in the dry *** were larger economic benefits for best weed management and effective rodent control in the dry season(258 US$/ha)than in the wet season(30 US$/ha).Concurrent control of weeds in and around rice fields combined with coordinated community trapping of rodents during the early tillering stage and ripening stage of rice are recommended management options.

关键词： Bandicota bengalensis Myanmar rice rodents weeds

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