PARASITE news

NEW PUBLICATION: Inefficiency of manual weeding in rainfed rice systems affected by parasitic weeds

Even after its official closure, the Parasite publications just keep on coming… Dr Simon Ncho and colleagues published a paper in Agricultural Economics entitled "Inefficiency of manual weeding in rainfed rice systems affected by parasitic weeds". More info below: Abstract Manual weeding is the predominant weed control practice and the most labor‐consuming activity in smallholder, rainfed rice systems in sub‐Saharan Africa.

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Parasite ruins African rice culture

At a first glance, Rhamphicarpa fistulosa might look innocent, but it turns rice plants into slaves. PhD candidate Stella Kabiri investigated the effects of this parasitic weed that damages the African rice production at an ever-increasing rate. It is nothing new that Rhamphicarpa fistulosa has been parasitising rice in many African countries, but Kabiri studied how this vampiric plant exhausts the rice

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PUBLICATION: Slavery in Plants: how the facultative hemi-parasitic plant Rhamphicarpa fistulosa can completely dominate its host

Abstract The rain-fed lowland rice weed Rhamphicarpa fistulosa (Rice Vampireweed) is a facultative root parasitic plant. Growth and reproduction of R. fistulosa benefit considerably from parasitism, but how this affects the host plant is not well established. We determined accumulation and partitioning of rice-parasite biomass in two pot experiments. First, rice (cv. IR64) was grown under eight R. fistulosa densities

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NEW PUBLICATION: Timing as parasitic weed control strategy in rice

PARASITE is happy to announce a new publication by our PhD researched Dennis Tippe and colleagues entitled: “Delayed or early sowing: Timing as parasitic weed control strategy in rice is species and ecosystem dependent”. Parasitic weeds are a severe problem in rain-fed rice production ecosystems in sub-Saharan Africa. In a recent paper, published in Field Crops Research (Volume 214, pages 14-24),

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Symposium and PhD defence Stella Kabiri

PhD defence Stella Kabiri On Friday 1 September 2017, Stella Kabiri will defend her PhD-thesis at 11.00 a.m. in the Aula of Wageningen University, Generaal Foulkesweg 1a in Wageningen, the Netherlands You are cordially invited to attend the public defence of the thesis entitled: "Ecology and Biology of Rhamphicarpa fistulosa, a New Parasitic Weed of Rain-fed Rice (Oryza sativa) in sub-Saharan

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NEW PUBLICATION: Farmers’ knowledge, use and preferences of parasitic weed management strategies in rain-fed rice production systems

The parasite project has yielded another publication, analysing farmers' knowledge, use and preferences of parasitic weed management strategies in rain-fed rice production systems in Tanzania. This study assessed farmers' awareness, use, preference and adoption criteria of parasitic weed management practices in rain-fed rice production environments in Tanzania. Surveys and workshops were organized in three affected rice growing areas in Morogoro-rural, Songea

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NEW PUBLICATION on the impact of parasitic weeds on rice farmers

Another PARASITE science paper has been published by Dr Simon N'cho and team. The paper shows how productivity and technical efficiency levels in rice production systems are severely constrained by biotic constraints such as parasitic weeds. This paper assesses the impact of infestation by parasitic weeds on rice farmers’ technical efficiency and examines the potential role of managerial factors in improving

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NEW PUBLICATION on Striga spp. in rice

Research on Striga spp. in rice shows genetic variation and host–parasite specificity of resistance and tolerance, underpinning the need for predictive breeding… In a new publication in New Phytologist, scientists of AfricaRice, the University of Sheffield and a host of students and co-workers show that Striga virulence varies across species (S. asiatica and S. hermonthica; see Photo 1) and ecotypes and that the extent of damage these

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Parasite poster during the Netherlands Annual Ecology Meeting (NAEM)

Between 14-15 February 2017, the Netherlands Annual Ecology Meeting (NAEM) was conducted. The meeting was held at  the Conference Centre De Wereld in Lunteren, the Netherlands. The 2017 meeting demarkated the 10th edition of the event and involved high-ranking internationally esteemed scientists. Dennis Tippe presented a poster titled: "Effect of sowing time on parasitic weeds in rain-fed rice production eco-systems”. Please find the

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New PARASITE publications and media

Although PARASITE has officially come to an end, the outputs keep on coming… One of the more recent outputs of the PARASITE-project on the estimated economic losses following parasite weed infestation in rice in Africa, authored by Jonne Rodenburg, Matty Demont, Sander Zwart and Lammert Bastiaans, entitled: "Parasite weed incidence and related economic losses in rice in Africa. Agriculture, Ecosystems

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