Life history and temperature-dependence of cassava-colonising populations of Bemisia tabaci

Aregbesola, O.Z.; Legg, J.P.; Lund, Ole; Sigsgaard, Lene; Sporleder, M.; Carhuapoma, P.; Rapisarda, Carmelo

doi:10.1007/s10340-020-01249-z

Cited by 25 publications

(19 citation statements)

References 48 publications

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“…The initial model developed based on life tables determined at constant temperatures, however, poorly predicted those determined in studies at naturally fluctuating temperatures, principally due to an overestimation of immature mortality rates and an underestimation of adult survival and reproduction rate. We have not observed such substantial differences between laboratory and field collected data in previous studies ( Aregbesola et al, 2020 ; Sporleder et al, 2004 , 2016 ; Mujica et al, 2017 ). This gives the impression that the species T. vaporariorum is a special case showing high variability in adult survival and reproduction in response to variable temperature.…”

Section: Discussioncontrasting

confidence: 76%

A temperature-dependent phenology model for the greenhouse whitefly Trialeurodes vaporariorum (Hemiptera: Aleyrodidae)

et al. 2020

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Highlights Development, mortality and reproduction of T. vaporariorum were studied at constant temperatures ranging from 10 to 32 °C. Nonlinear equations were fitted to the data and a temperature-driven process-based phenology/population growth model for the vector pest established. After adjustment, the model gave good predictions when compared with observed life tables and published data. The model can be used for predicting the species distribution potential based on temperature worldwide and adjusting pest management measures.

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Section: Discussioncontrasting

confidence: 76%

A temperature-dependent phenology model for the greenhouse whitefly Trialeurodes vaporariorum (Hemiptera: Aleyrodidae)

et al. 2020

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“…The results are similar to those by Legg [ 51 ], who reported a development time of 27–39 days for cassava whiteflies under field conditions in central Uganda, where annual average temperature and relative humidity are 25–31 °C and 66–80%, respectively. However, contrary to our finding, Aregbesola et al [ 52 ] reported an average development time of 16.3 ± 0.6 for SSA1-SG3 whitefly in the laboratory using climatic chambers (Percival ® PGC-6L) set at a constant temperature of 28 °C, 65 ± 5% r.h. and 12:12 L:D. Furthermore, the authors reported an average development time of 21.3 days for the SSA1-SG3 B. tabaci population under field conditions in Dar es Salaam, Tanzania, where average temperature and relative humidity were 28 °C and 78%, respectively. The differences observed in the current study and that of Aregbesola et al [ 52 ] could be attributed to several factors, including different crops and cassava varieties (Colombia vs. Albert), relative humidity conditions (60% vs. 65–78%) and duration of whitefly colonies in the laboratory used.…”

Section: Discussioncontrasting

confidence: 99%

Is High Whitefly Abundance on Cassava in Sub-Saharan Africa Driven by Biological Traits of a Specific, Cryptic Bemisia tabaci Species?

Mugerwa

Sseruwagi

Colvin

et al. 2021

Insects

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In East Africa, the prevalent Bemisia tabaci whiteflies on the food security crop cassava are classified as sub-Saharan Africa (SSA) species. Economically damaging cassava whitefly populations were associated with the SSA2 species in the 1990s, but more recently, it has been to SSA1 species. To investigate whether biological traits (number of first instar nymphs, emerged adults, proportion of females in progeny and development time) of the cassava whitefly species are significant drivers of the observed field abundance, our study determined the development of SSA1 sub-group (SG) 1 (5 populations), SG2 (5 populations), SG3 (1 population) and SSA2 (1 population) on cassava and eggplant under laboratory conditions. SSA1-(SG1-SG2) and SSA2 populations’ development traits were similar. Regardless of the host plant, SSA1-SG2 populations had the highest number of first instar nymphs (60.6 ± 3.4) and emerged adults (50.9 ± 3.6), followed by SSA1-SG1 (55.5 ± 3.2 and 44.6 ± 3.3), SSA2 (45.8 ± 5.7 and 32.6 ± 5.1) and the lowest were SSA1-SG3 (34.2 ± 6.1 and 32.0 ± 7.1) populations. SSA1-SG3 population had the shortest egg–adult emergence development time (26.7 days), followed by SSA1-SG1 (29.1 days), SSA1-SG2 (29.6 days) and SSA2 (32.2 days). Regardless of the whitefly population, development time was significantly shorter on eggplant (25.1 ± 0.9 days) than cassava (34.6 ± 1.0 days). These results support that SSA1-(SG1-SG2) and SSA2 B. tabaci can become highly abundant on cassava, with their species classification alone not correlating with observed abundance and prevalence.

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“…One possible reason for this divergence of Asia II 3 survival could be the difference in temperature between the two experiments, as the temperature (25 °C) in the current study was lower than that (28 °C) in the previous study 15 . However, as shown by other studies on the influence of temperature on the development, survival and reproduction of whiteflies in the B. tabaci complex, the temperature of 25 °C is in general well within the range of favorable temperature for these whiteflies 25–30 . In addition, different cultures of whiteflies of the two species were used for the current study and our previous study 15 .…”

Section: Discussioncontrasting

confidence: 45%

Performance of two species of whiteflies is unaffected by glucosinolate profile in Brassica plants

Qian

Pan

et al. 2021

Pest Management Science

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BACKGROUND While plant glucosinolates are known to impart resistance to many insects, their role in the interactions between plants and many phloem‐feeding insects such as whiteflies are poorly understood. The whitefly Bemisia tabaci complex comprises many cryptic species that differ in the ability to utilize Brassica plants. However, whether Brassica plants‐specific traits such as glucosinolates determine differences of whiteflies in colonizing Brassica plants remains in question. RESULTS We first observed performance of two whitefly species MEAM1 and Asia II 3, which differ obviously in their ability to colonize Brassica plants, on four cultivars of three Brassica species that vary in glucosinolate profile. We found that the life history characteristics of each of the two whitefly species seems to be only marginally affected by cultivar. We next used wild‐type Arabidopsis plants and mutants defective in glucosinolate biosynthesis or hydrolysis to explore the effects of glucosinolates on the whitefly. We found that fecundity and development of immature stages of neither of the two whitefly species differ significantly between wild‐type and mutants. CONCLUSION The data suggest that glucosinolates may have little effect on the oviposition by adults and the survival and development of immature stages of MEAM1 and Asia II 3 whiteflies. The marked differences in colonizing Brassica crops between the two whitefly species are likely due to plant traits other than glucosinolates. © 2021 Society of Chemical Industry.

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Life history and temperature-dependence of cassava-colonising populations of Bemisia tabaci

Cited by 25 publications

References 48 publications

A temperature-dependent phenology model for the greenhouse whitefly Trialeurodes vaporariorum (Hemiptera: Aleyrodidae)

A temperature-dependent phenology model for the greenhouse whitefly Trialeurodes vaporariorum (Hemiptera: Aleyrodidae)

Is High Whitefly Abundance on Cassava in Sub-Saharan Africa Driven by Biological Traits of a Specific, Cryptic Bemisia tabaci Species?

Performance of two species of whiteflies is unaffected by glucosinolate profile in Brassica plants

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