scholarly journals Assessment of Potential Sublethal Effects of Various Insecticides on Key Biological Traits of The Tobacco Whitefly, Bemisia tabaci

2013 ◽  
Vol 9 (3) ◽  
pp. 246-255 ◽  
Author(s):  
Yuxian He ◽  
Jianwei Zhao ◽  
Yu Zheng ◽  
Qiyong Weng ◽  
Antonio Biondi ◽  
...  
Keyword(s):  
Bemisia Tabaci ◽  
Sublethal Effects ◽  
Biological Traits ◽  
Tobacco Whitefly

scholarly journals Sublethal effects of some synthetic and botanical insecticides on Bemisia tabaci (Hemiptera: Aleyrodidae)

2014 ◽  
Vol 54 (2) ◽  
pp. 171-178 ◽  
Author(s):  
Saeideh Esmaeily ◽  
Mohammad Amin Samih ◽  
Mehdi Zarabi ◽  
Fatemeh Jafarbeigi
Keyword(s):  
Bemisia Tabaci ◽  
Sublethal Effects ◽  
Survival Rates ◽  
Reproductive Rate ◽  
Intrinsic Rate Of Increase ◽  
Botanical Insecticides ◽  
Calotropis Procera ◽  
Biological Traits ◽  
Net Reproductive Rate ◽  
Rate Of Increase

Abstract In addition to direct mortality caused by insecticides, some biological traits of insects may also be affected by sublethal insecticide doses. In this study, we used the age-stage, two-sex life table method to evaluate the sublethal effects of the four synthetic insecticides: abamectin, imidacloprid, diazinon, and pymetrozin as well as the botanical insecticide taken from Calotropis procera (Asclepiadaceae) extract, on eggs of the cotton whitefly, Bemisia tabaci (Hem.: Aleyrodidae). The lowest and highest survival rates and oviposition periods were observed in whiteflies treated by diazinon and imidacloprid, respectively. We found significant differences in the net reproductive rate (R0), the intrinsic rate of increase (r), the finite rate of increase (?), and the gross reproductive rate (GRR) among different insecticides. Altogether, our results showed that pymetrozin and C. procera induced the most sublethal effects, thus they may be suitable candidates for use in integrated pest management programs of B. tabaci.

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

Insects ◽  
2021 ◽  
Vol 12 (3) ◽  
pp. 260
Author(s):  
Habibu Mugerwa ◽  
Peter Sseruwagi ◽  
John Colvin ◽  
Susan Seal
Keyword(s):  
Food Security ◽  
Bemisia Tabaci ◽  
Development Time ◽  
Adult Emergence ◽  
Sub Saharan Africa ◽  
Biological Traits ◽  
Population Development ◽  
Species Classification ◽  
First Instar ◽  
Sub Saharan

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.

The importance of pH in food selection by the tobacco whitefly,Bemisia tabaci

1983 ◽  
Vol 11 (3-4) ◽  
pp. 151-160 ◽  
Author(s):  
M. J. Berlinger ◽  
Z. Magal ◽  
Aliza Benzioni
Keyword(s):  
Bemisia Tabaci ◽  
Food Selection ◽  
Tobacco Whitefly

scholarly journals Host Preference Vegetables of Tobacco Whitefly Bemisia tabaci (Gennadius, 1889) in Nepal

2015 ◽  
Vol 20 (1) ◽  
pp. 133-137 ◽  
Author(s):  
Mohan Sharma ◽  
Prem Bahadur Budha
Keyword(s):  
Host Plant ◽  
Bemisia Tabaci ◽  
Free Choice ◽  
Host Preference ◽  
Science And Technology ◽  
Tobacco Whitefly

The host preference of whitefly Bemisia tabaci was experimented in four economically important vegetable plants viz. tomato, brinjal, capsicum and cucumber in 2012-2013. It was found that preference of whitefly for feeding under both conditions free-choice and no-choice was significantly different after 24 hours, 48 hours, 72 hours and 96 hours. Cucumber was the most preferred host plant for oviposition while capsicum was the least.Journal of Institute of Science and Technology, 2015, 20(1): 133-137

Lethal and sublethal effects of cyantraniliprole, a new anthranilic diamide insecticide, on Bemisia tabaci (Hemiptera: Aleyrodidae) MED

2017 ◽  
Vol 91 ◽  
pp. 108-113 ◽  
Author(s):  
Ran Wang ◽  
Wei Zhang ◽  
Wunan Che ◽  
Cheng Qu ◽  
Fengqi Li ◽  
...  
Keyword(s):  
Bemisia Tabaci ◽  
Sublethal Effects ◽  
Anthranilic Diamide ◽  
Diamide Insecticide

scholarly journals Detrimental sublethal effects hamper the effective use of natural and chemical pesticides in combination with a key natural enemy of Bemisia tabaci on tomato

2020 ◽  
Vol 76 (11) ◽  
pp. 3551-3559 ◽  
Author(s):  
Marianne A Soares ◽  
Geraldo A Carvalho ◽  
Mateus R Campos ◽  
Luis C Passos ◽  
Marcelo M Haro ◽  
...  
Keyword(s):  
Bemisia Tabaci ◽  
Natural Enemy ◽  
Sublethal Effects ◽  
Effective Use ◽  
Chemical Pesticides

scholarly journals Effects of buprofezin and imidacloprid on the functional response of Eretmocerus mundus Mercet

2014 ◽  
Vol 50 (No. 3) ◽  
pp. 145-150 ◽  
Author(s):  
F. Sohrabi ◽  
P. Shishehbor ◽  
M. Saber ◽  
M.S. Mosaddegh
Keyword(s):  
Functional Response ◽  
Bemisia Tabaci ◽  
Natural Enemies ◽  
Attack Rate ◽  
Sublethal Effects ◽  
Handling Time ◽  
Type Ii ◽  
Type Iii ◽  
Eretmocerus Mundus

Eretmocerus mundus Mercet is one of the key natural enemies of Bemisia tabaci (Gennadius). In this study, the sublethal effects of LC<sub>25</sub> of imidacloprid and field-recommended concentration of buprofezin on the functional response of E. mundus to different densities of second instar B. tabaci nymphs were evaluated. The results revealed a type III functional response in the control and imidacloprid treatment. The type III functional response was altered into a type II by buprofezin. Although imidacloprid did not alter the type of functional response of E. mundus compared to the control, it negatively affected the handling time and maximum attack rate of the parasitoid. Therefore, the use of this insecticide should be evaluated carefully in IPM programs.

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