Three field trials were conducted at Namulonge Agricultural and Animal Production Research Institute to investigate the population dynamics of Bemisia tabaci Gennadius and its associated aphelinid parasitoids in Uganda. Results showed that more whitefly occurred on the cassava mosaic disease-resi...
Otim, M.
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Legg, D.J.
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Kyamanywa, S.
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Polaszek, A.
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Gerling, D.
,
[Population dynamics of Bemisia tabaci (Homoptera: Aleyrodidae) parasitoids on cassava mosaic disease resistant and susceptible varieties]
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Population dynamics of Bemisia tabaci (Homoptera: Aleyrodidae) parasitoids on cassava mosaic disease resistant and susceptible varieties
Bemisia tabaci threatens production of cassava in Africa through vectoring viruses that cause cassava mosaic disease (CMD) and cassava brown streak disease (CBSD). B. tabaci sampled from cassava in eight countries in Africa were genotyped using NextRAD sequencing, and their phylogeny and populati...
Wosula, Everlyne N.
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Chen, W.
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Fei, Z.
,
Legg, J.P.
,
[Unravelling the genetic diversity among cassava Bemisia tabaci whiteflies using NextRAD Sequencing]
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Unravelling the genetic diversity among cassava Bemisia tabaci whiteflies using NextRAD Sequencing
The sweetpotato whitefly, Bemisia tabaci (Gennadius) is the vector of the cassava mosaic geminiviruses (CMGs) that cause cassava mosaic disease (CMD). Synergistic interactions between B. tabaci and CMGs have been hypothesized as a cause of whitefly “super-abundance,” which has been a key factor b...
A survey was carried out of African cassava mosaic geminivirus and cassava brown streak virus diseases (ACMD and CBSD) in Tanzania. ACMD occurred throughout the country at low to moderate incidences in the fifteen different regions surveyed (1- 64%). The incidence was generally higher along the c...
Bemisia tabaci (Gennadius) is one of the most important pests of cassava in Africa and several countries of Asia due to the damage caused by direct feeding, the excretion of honeydew, and its capacity as a vector of cassava mosaic geminivirus. There is a general consensus that B. tabaci is a comp...
Carabalí, A.
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Bellotti, Anthony C.
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Montoya Lerma, J
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[Biological parameters of Bemisia tabaci (Gennadius) Biotype B (Hemiptera: Aleyrodidae) on Jatropha gossypiifolia, Commercial (Manihot esculenta) and wild cassava (Manihot flabellifolia and M. carthaginensis) (Euphorbiaceae)]
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Biological parameters of Bemisia tabaci (Gennadius) Biotype B (Hemiptera: Aleyrodidae) on Jatropha gossypiifolia, Commercial (Manihot esculenta) and wild cassava (Manihot flabellifolia and M. carthaginensis) (Euphorbiaceae)
The first outbreak of Bemisia afer sens. Lat. in an agricultural situation in the Americas is reported. B. afer was discovered on sweetpotato (Ipomoea batatas Lam.) in the Cañete Valley in the central coast of Peru.
Anderson, Pamela K.
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Martin, JH
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Hernández, M.P.
,
Lagnoui, A
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[Bemisia afer sens. lat. (Homoptera: Aleyrodidae) outbreak in the Americas]
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Bemisia afer sens. lat. (Homoptera: Aleyrodidae) outbreak in the Americas
An extensive survey of B. tabaci populations in 15 economically important crops and 8 weed species in Florida was carried out from March 2000 through May 2001. Sex ratios did not significantly differ among host plants. Biotype analysis by RADP/PCR indicated the presence of only the B biotype of B...
McKenzie, CL
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Anderson, Pamela K.
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Villarreal, N.
,
[An extensive survey of Bemisia tabaci (Homoptera: Aleyrodidae) in agricultural ecosystems in Florida]
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An extensive survey of Bemisia tabaci (Homoptera: Aleyrodidae) in agricultural ecosystems in Florida
Cassava mosaic disease and cassava brown streak disease are caused by viruses transmitted by Bemisia tabaci and affect approximately half of all cassava plants in Africa, resulting in annual production losses of more than $US 1 billion. A historical and current bias towards virus rather than vect...
Legg, J.P.
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Shirima, R.R.
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Tajebe, L.
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Guastella, D.
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Boniface, S.
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Jeremiah, S.
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Nsami, E.
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Chikoti, Patrick Chiza
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Rapisarda, C.
,
[Biology and management of Bemisia whitefly vectors of cassava virus pandemics in Africa]
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Biology and management of Bemisia whitefly vectors of cassava virus pandemics in Africa
Bemisia tabaci (Gennadius) is the vector of cassava mosaic geminiviruses (CMGs) and cassava brown streak viruses (CBSVs) in Africa, which cause devastating yield losses. As a prerequisite to developing biological control methods and enhancing knowledge of the fauna of whitefly parasitoids in sub-...
Guastella, D.
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Lulah, H.
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Tajebe, L.
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Cavalieri, V.
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Evans, G.
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Pedata, P.A.
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Rapisarda, C.
,
Legg, J.P.
,
[Survey on whiteflies and their parasitoids in cassava mosaic pandemic areas of Tanzania using morphological and molecular techniques]
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Survey on whiteflies and their parasitoids in cassava mosaic pandemic areas of Tanzania using morphological and molecular techniques
Bemisia tabaci (Gennadius) (Homoptera: Aleyrodidae), one of the most economically important agricultural pests worldwide, is the vector of cassava mosaic geminiviruses that cause cassava mosaic disease (CMD). In East and Central Africa, a severe CMD pandemic that spread from Uganda in the late 19...
Tajebe, L.
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Boni, S.B.
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Guastella, D.
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Cavalieri, V.
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Lund, O.
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Rugumamu, C.P.
,
Rapisarda, C.
,
Legg, J.P.
,
[Abundance, diversity and geographic distribution of cassava mosaic disease pandemic-associated Bemisia tabaci in Tanzania]
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Abundance, diversity and geographic distribution of cassava mosaic disease pandemic-associated Bemisia tabaci in Tanzania