Management of Bemisia tabaci biotype B with botanical and mineral oils

Marques, Míriam de Almeida; Quintela, E. D.; Mascarin, Gabriel Moura; Fernandes, Paulo; Arthurs, Steven

doi:10.1016/j.cropro.2014.09.006

Cited by 13 publications

(8 citation statements)

References 19 publications

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“…Our results from the two plantation periods are similar to those of many authors who compared the effi cacy of diff erent microbial insecticides for integrated fi eld management of the whitefl y (Lacey et al 2008;Lynn et al 2010;Zhu and Kim 2011;Ghosh 2014;de Almeida Marques et al 2014). Kim et al (2011) studied the eff ect of diff erent insecticides including spinosad on B and Q Bio-Types of B. tabaci.…”

Section: Effi Cacy Of Bio-rational Insecticidessupporting

confidence: 77%

“…Th eir results showed that spinosad and Fipronil might be the best choices for the control of B. tabaci adults. Many researchers have investigated the effi cacy of azadirachtin products against B. tabaci (Lynn et al 2010;de Almeida Marques et al 2014). De Almeida Marques et al (2014) studied the eff ects of diff erent plant extracts including neem for the management of B. tabaci Bio-Type B.…”

Section: Effi Cacy Of Bio-rational Insecticidesmentioning

confidence: 99%

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Original Article. An evaluation of some eco-friendly biopesticides against Bemisia tabaci on two greenhouse tomato varieties in Egypt

Abdel-Razek¹,

El-Ghany²,

Djelouah³

et al. 2016

Journal of Plant Protection Research

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Th is study has two main approaches. First, it exploits the susceptibility of tomato cultivars as a prophylactic measure to detect auto resistance characters of the tested tomato varieties against Bemisia tabaci (Gennadius) (Homoptera: Aleyrodidae). Secondly, it evaluates the effi cacy of diff erent bio-rational insecticides against B. tabaci under greenhouse conditions. Th e results exhibited a special signifi cance in B. tabaci infestation suitability between the two tomato varieties with a high infestation signifi cance found in the Shifa F1 hybrid tomato variety compared to the Savera F1 hybrid tomato variety in the fi rst plantation period. Subsequently, in the second plantation period, there was a signifi cant diff erence between the two tomato varieties. Bemisia tabaci showed a preference for the Shifa F1 hybrid over the Savera F1 hybrid tomato variety. Th ese diff erences occurred during the 1st, 2nd, 4th, 6th, 7th, 8th, and 10th weeks. In the experimental trial for the effi cacy of eco-friendly biorational insecticides, spinosad, azadirachtin, Beauveria bassiana and Metarhizium anisopliae, there were signifi cant diff erences between the treated and untreated plants during the two plantation periods. A high effi cacy of spinosad on the B. tabaci population was found. Bemisia tabaci infestation under all the applications was reduced from 50 to 94.61% for the two plantation periods. Th is obvious decrease in B. tabaci population increase attention to benefi ts of the diff erent bio-rational insecticides.

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Section: Effi Cacy Of Bio-rational Insecticidessupporting

confidence: 77%

Section: Effi Cacy Of Bio-rational Insecticidesmentioning

confidence: 99%

Original Article. An evaluation of some eco-friendly biopesticides against Bemisia tabaci on two greenhouse tomato varieties in Egypt

Abdel-Razek¹,

El-Ghany²,

Djelouah³

et al. 2016

Journal of Plant Protection Research

View full text Add to dashboard Cite

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“…Interestingly, significant mortality occurred due to the residual activity on first instar larvae emergence from neem-treated eggs. Similar findings have been reported on Bemisia tabaci (Marques et al 2014). Neem acts on the growth and molting of insect pests or as an anti-nutritional/anti-feedant (Blaney et al 1990;Mouffok et al 2008;Seljåsen and Meadow 2006).…”

Section: Discussionsupporting

confidence: 86%

“…With crude extracts of 5%, 10% and 15% neem, a mortality range of 65-82% was reported on eggs of M. vitrata (Ekesi 2000). Other findings have indicated a limited effect of neem oil on the eggs of different insect pest species (Ahmad et al 2015;Bruce et al 2004;Marques et al 2014;Seljåsen and Meadow 2006). Differences in the insecticidal effects of neem have been reported for several insect species because the contents of phytochemicals extracted from neem vary considerably due to biotic and abiotic factors and variations in product formulation (Gahukar 2014;Mouffok et al 2008).…”

Section: Discussionmentioning

confidence: 99%

Effects of Maruca vitrata multi-nucleopolyhedrovirus and neem oil, Azadirachta indica Juss on the eggs of the cowpea pod borer, Maruca vitrata Fabricius (Lepidoptera: Crambidae)

Traore

Waongo

et al. 2019

Int J Trop Insect Sci

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Cowpea, Vigna unguiculata (L.) Walp., is the most cultivated and consumed legume in West Africa and is typically attacked by several insect pests, including Maruca vitrata, leading to reduced yields. This study assessed under laboratory conditions the efficacy of neem oil and M. vitrata multi-nucleopolyhedrovirus (MaviMNPV) against M. vitrata eggs as alternatives to second generation pesticides. Hatching and mortality rates after biopesticide application of neem oil, MaviMNPV, and the two in combination reduced the egg viability by 89%, 84% and 91%, respectively. Moreover, the combination of MaviMNPV and neem oil induced 100% mortality among the hatched larvae, compared to 60% and 100% alone, respectively. Implications for using these biopesticides are discussed within an integrated pest management (IPM) context.

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“…(Meliaceae) oil extract is one of the most common repellent essential oils. It has been used previously against whitefly and showed promising results (Simmonds et al 2002;de Almeida Marques et al 2014). Pavela and Herda (2007) have shown repellent effects against B. tabaci B biotype (Yang et al 2010).…”

Section: Introductionmentioning

confidence: 99%

A critical evaluation of the effects of plant essential oil formulations against silverleaf whitefly, Bemisia tabaci, B biotype (Gennadius) and its natural enemies

Obaidoon¹

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The toxicity of 30 botanical products and mixtures were evaluated using preliminary bioassay tests to find out their overall effectiveness against the developmental stages of silverleaf whitefly (SLW) Bemisia tabaci, B biotype, (Gennadius) (Hemiptera: Aleyrodidae). Effective formulations were prepared to be tested in replicated experiments against the egg, nymphal and adult stages of SLW.From the results, mustard oil showed an ovicidal effect, lauryl glucoside, a surfactant, had produced high mortalities against the nymphal stages whereas monoethanolamine, diethylene glycol monomethyl ether (cellosolve acetate) and laureth -7ethylene oxide-carboxylate (laureth carboxylate) had produced high to moderate level of adulticidal effects. Three formulations were prepared from those effective products and then used in replicated experiments testing their lethal (toxicity) and sublethal (repellency and oviposition deterrent) effects against SLW. Additionally, trials were conducted to investigate their impacts on one of the main SLW parasitoids, Eretmocerus hayati (Zolnerowich and Rose) (Hymenoptera: Aphelinidae).Leaf dipping and spraying methods were used to assess the toxicity effects of the products, and choice and no choice repellence tests were used to determine the repellence index (RI) and oviposition deterrent index (ODI). A glass -slide bioassay was used to determine the lethal effects of the formulations against the SLW parasitoid. Different ranges of the tested rates of the formulations were prepared starting from 0.001% v/v to 10% v/v to investigate the proper effective rates that provide sufficient mortality rates of the developmental stages of SLW.After promising results of the mixture containing mustard oil and liquid soap, replicated experiments were conducted against each developmental stage of SLW. When tested on eggs, at a concentration of 0.25%, mortality was 95.8%, whereas the mortality percentages were 43% and 50% at tested rates of the mixture at 0.1% and 0.05%, respectively. Mustard oil evaluated against nymphal stages was effective at a rate of 0.25% and above against young and old nymphs (86.4% and 47.4% mortality, respectively). Tests against the adult stage at 0.25% and 0.5% resulted in low mortality; 34.0% and 37.0%, respectively. However, at 1% and above mortality was high (94.17% at 1%).On the basis of these results, three formulations were prepared: formulation one (F1) containing mustard oil, MW-100 emulsifier, lauryl glucoside and cellosolve acetate, formulation three (F3) containing mustard oil, MW-100 emulsifier, laureth carboxylate and monoethanolamine and formulation four (F4) containing mustard oil, MW-100 emulsifier, lauryl glucoside and monoethanolamine. These formulations were evaluated at different concentrations (0.25%, 0.44%.ii 0.69%, 1% and 1.23%). The formulations had an effective impact on the eggs of SLW, disrupting the embryogenesis process of the eggs. These formulations also affected all nymphal instars.However, the tested rates did not show sufficient effects...

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Management of Bemisia tabaci biotype B with botanical and mineral oils

Cited by 13 publications

References 19 publications

Original Article. An evaluation of some eco-friendly biopesticides against Bemisia tabaci on two greenhouse tomato varieties in Egypt

Original Article. An evaluation of some eco-friendly biopesticides against Bemisia tabaci on two greenhouse tomato varieties in Egypt

Effects of Maruca vitrata multi-nucleopolyhedrovirus and neem oil, Azadirachta indica Juss on the eggs of the cowpea pod borer, Maruca vitrata Fabricius (Lepidoptera: Crambidae)

A critical evaluation of the effects of plant essential oil formulations against silverleaf whitefly, Bemisia tabaci, B biotype (Gennadius) and its natural enemies

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