Field efficacy of entomopathogens and plant extracts on Tuta absoluta Meyrick (Lepidoptera: Gelechiidae) infesting tomato in Rwanda

Ndereyimana, A.; Nyalala, Samuel; Murerwa, Patrick; Gaidashova, Svetlana

doi:10.1016/j.cropro.2020.105183

Cited by 10 publications

(4 citation statements)

References 27 publications

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“…Klieber and Reineke [ 51 ] also reported the same pattern as a function of time and duration of biopesticide application. Similarly, commercial B. bassiana (Beaucitech® WP) and Metarhizium strain (Metatech® WP) showed 90–98% and 88–95% leaf protection on Roma tomato variety, respectively [ 52 ].…”

Section: Resultsmentioning

confidence: 99%

Biocontrol competence of Beauveria bassiana, Metarhizium anisopliae and Bacillus thuringiensis against tomato leaf miner, Tuta absoluta Meyrick 1917 under greenhouse and field conditions

Aynalem

Muleta

Jida

et al. 2022

Heliyon

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Section: Resultsmentioning

confidence: 99%

Biocontrol competence of Beauveria bassiana, Metarhizium anisopliae and Bacillus thuringiensis against tomato leaf miner, Tuta absoluta Meyrick 1917 under greenhouse and field conditions

Aynalem

Muleta

Jida

et al. 2022

Heliyon

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“…The results indicate that crude extracts of B. bassiana significantly affect T. absoluta larvae 48 h after treatment, resulting in more than 80% mortality ( Figure 3 ). Several previous studies have reported that entomopathogenic fungi and their chemical constituents have shown remarkable toxic efficacy against various developmental stages of T. absoluta , including eggs, larvae, pupae, and adults, in both laboratory and field settings ( Ndereyimana et al, 2019 , 2020 ; Silva et al, 2020 ; Hammad et al, 2021 ; Chouikhi et al, 2022 ). Similar to the present study, the secondary metabolites from B. bassiana were found to be detrimental to Spodoptera littoralis on second-instar larvae, resulting in an 86% mortality rate ( Abdullah and Sukar, 2021 ).…”

Section: Discussionmentioning

confidence: 99%

Biocontrol effects of chemical molecules derived from Beauveria bassiana against larvae of Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae)

Vivekanandhan,

Swathy,

Alahmadi

et al. 2024

Front. Microbiol.

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In this study, we conducted tests on the isolation, identification, characterization, and extraction of chemical molecules from Beauveria bassiana against Tuta absoluta larvae. The enzyme responses of T. absoluta to the crude extract were examined 24 h after treatment, and the number of dead larvae was calculated 24 and 48 h after treatment. Molecular docking studies were conducted to assess the interaction of important molecules with the acetylcholinesterase enzyme. The larvicidal activity of crude chemicals from fungi was high 24 h after treatment, with LC50 and LC90 values of 25.937 and 33.559 μg/mL, respectively. For a period of 48 h, the LC50 and LC90 values were 52.254 and 60.450 μg/mL, respectively. The levels of acetylcholinesterase, α-carboxylesterase, and β-carboxylesterase enzymes were lower in the treatment group after 24 h compared to the control group. The GC-MS test revealed that the crude extract consisted mainly of 9,10-octadecadienoic acid, which was the primary compound. Docking results indicated that 9,10-octadecadienoic acid showed a strong interaction with acetylcholinesterase (AChE). Our findings suggest that the chemical molecule 9,10-octadecadienoic acid derived from the entomopathogenic fungus B. bassiana is more toxic to T. absoluta larvae. We plan to conduct studies to test its effectiveness in semi-field conditions and to evaluate its stability in field conditions. We believe that this 9,10-octadecadienoic acid molecule could be used to control T. absoluta larvae in the near future without causing environmental pollution.

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“…The most bacterial control agents used to manage T. absoluta is Bacillus thuringiensis, [29,30,31,32] and Saccharopolyspora spinosa [33] . Also, several entomopathogenic fungi are used in the control of tomato leaf miner: Metarhizium anisopliae [34,35] ; Beauveria bassiana [36,37,38] , Aspergillus oryzae [39] , Saria farinosa [40] , Clonostachys sp [38] and Purpureocillium lilacinum [40] . Nutrient exhaustion and toxicosis induced by fungi penetration leads to death of the insect [41] .…”

Section: Bacteria and Entomopathogenic Fungimentioning

confidence: 99%

A review of the management of Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae) with special reference to biological control using plant extracts

Bennour¹,

Belgacem²,

Hamza³

et al. 2021

J. Entomol. Zool. Stud.

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The tomato leaf miner Tuta absoluta is one of the most destructive pests of tomato plant Solanum lycopersicum L worldwide. Synthetic chemical insecticides are mainly used to manage T. absoluta. However, their excessive use has led to serious problems concerning human health, non-target organisms and environnement. Biological control, using bacteria, entomopathogenic fungi, animals and plants remain an eco-friendly alternative for controlling the tomato leaf miner. Here we review the use of biological management of T. absoluta with special reference to control using plant extracts.

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Field efficacy of entomopathogens and plant extracts on Tuta absoluta Meyrick (Lepidoptera: Gelechiidae) infesting tomato in Rwanda

Cited by 10 publications

References 27 publications

Biocontrol competence of Beauveria bassiana, Metarhizium anisopliae and Bacillus thuringiensis against tomato leaf miner, Tuta absoluta Meyrick 1917 under greenhouse and field conditions

Biocontrol competence of Beauveria bassiana, Metarhizium anisopliae and Bacillus thuringiensis against tomato leaf miner, Tuta absoluta Meyrick 1917 under greenhouse and field conditions

Biocontrol effects of chemical molecules derived from Beauveria bassiana against larvae of Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae)

A review of the management of Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae) with special reference to biological control using plant extracts

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