Identification of vectors of<i>rice yellow mottle virus</i>in Tanzania

Banwo, O. O.; Makundi, Rhodes H.; Abdallah, R. S.; Mbapila, J. C.

doi:10.1080/03235400109383361

Cited by 15 publications

(15 citation statements)

References 6 publications

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“…This virus is endemic in Africa, south of the Sahara, and occurs mainly in irrigated rice ecosystems. RYMV has been reported from several East, Central, and West African countries, including the islands of Zanzibar and Madagascar (1,5,6,18,21,22). The virus infects most, if not all, wild rice species (Oryza spp.)…”

Section: Rice Yellow Mottle Virus Is Transmitted By Cows Donkeys Anmentioning

confidence: 99%

Rice yellow mottle virus Is Transmitted by Cows, Donkeys, and Grass Rats in Irrigated Rice Crops

Sarra

Peters

2003

Plant Disease

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Rice yellow mottle virus (RYMV), endemic in Africa, is believed to be spread by chrysomelid beetles, although the infections in a field often cannot be explained by the prevailing number of beetles. We show that the grass rat Arvicanthis niloticus, domestic cows (Bos spp.), and donkeys (Asinus spp.) are potent and efficient transmitters of RYMV. Spread of RYMV by rats was demonstrated in cage experiments wherein individual rats transmitted the virus from healthy to infected rice plants and confirmed in a field experiment. Experiments with cows and donkeys showed that they could transmit the virus in plots with healthy and infected plants and to plots with healthy plants. A high percentage of seedlings became infected when a cow grazed in a seedbed after being fed with infected rice plants. Transmission also was observed when cows were allowed to graze on the stubble of infected fields. The disease incidence increased at least fourfold over time to approximately 36% of the plants infected in the experimental plots of two stubble fields. The results obtained in these stubble fields suggest that cattle-mediated spread will enhance the size of the virus load in the contraseason and the infection potential to infect the next crop.

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Section: Rice Yellow Mottle Virus Is Transmitted By Cows Donkeys Anmentioning

confidence: 99%

Rice yellow mottle virus Is Transmitted by Cows, Donkeys, and Grass Rats in Irrigated Rice Crops

Sarra

Peters

2003

Plant Disease

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“…Though not as a primary object of study, the first and only report containing information on the insect pests of rice in Tanzania was by BOHLEN (1973) who reported about 13 species of insects as present on rice. Several species that had not been reported earlier have recently been observed to become major pests, indicating that the number of important insect species on rice might have increased over the years (BANWO et al 2001b). In addition to direct damage, many insects also act as vectors of rice diseases.…”

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confidence: 97%

Management of major insect pests of rice in Tanzania - Review

Banwo¹

2002

Plant Prot. Sci.

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The major insect pests on rice in Tanzania are listed and described. They are from five orders (Coleoptera, Diptera, Hemiptera, Lepidoptera and Orthoptera) and are discussed as stem borers, stem and root feeders, and leaf and panicle feeders. This review puts together the hitherto fragmented information available on the distribution, host range, biology/life-cycle and ecology, and the management measures of the insect pests of rice. Areas for future research are also mentioned.

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“…It can acquire and retain the virus for about six days but is unable to transmit the virus for more than three days [8,59]. C. pulla was confirmed as vector in Sierra Leone [60], Madagascar [48], Tanzania [28,45,46], Cameroon [51,61], and Ivory Coast [6,52,59].…”

Section: Sesselia Pusilla Gerstaeckermentioning

confidence: 99%

“…Three years after Abo's findings in Ivory Coast, Banwo et al [45,46] have identified two new beetle vectors, in Tanzania. These were Chaetocnema sp.…”

Section: Chnootriba Similis Mulsantmentioning

confidence: 99%

Insect Vectors of Rice Yellow Mottle Virus

et al. 2015

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Rice yellow mottle virus (RYMV) is the major viral constraint to rice production in Africa. RYMV was first identified in 1966 in Kenya and then later in most African countries where rice is grown. Several studies have been conducted so far on its evolution, pathogenicity, resistance genes, and especially its dissemination by insects. Many of these studies showed that, among RYMV vectors, insects especially leaf-feeders found in rice fields are the major source of virus transmission. Many studies have shown that the virus is vectored by several insect species in a process of a first ingestion of leaf material and subsequent transmission in following feedings. About forty insect species were identified as vectors of RYMV since 1970 up to now. They were essentially the beetles, grasshoppers, and the leafhoppers. For this review, we presented the chronology of their identification. Also, the biology, ecology, host range, distribution, and caused damage of these insects were briefly summarized.

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Identification of vectors ofrice yellow mottle virusin Tanzania

Cited by 15 publications

References 6 publications

Rice yellow mottle virus Is Transmitted by Cows, Donkeys, and Grass Rats in Irrigated Rice Crops

Rice yellow mottle virus Is Transmitted by Cows, Donkeys, and Grass Rats in Irrigated Rice Crops

Management of major insect pests of rice in Tanzania - Review

Insect Vectors of Rice Yellow Mottle Virus

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