Efficacy of integrated pest management tools evaluated against Tuta absoluta (Meyrick) on tomato in India

Sridhar, Varadharajan; Naik, S. Onkara; Ashokan, R; Swathi, P.; Gadad, Hanamant

doi:10.18311/jbc/2019/23254

Cited by 7 publications

(6 citation statements)

References 13 publications

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“…Although S. chilense, S. huaylesense, and S. corneliomulleri have been re- Tuta absoluta had the lowest r, R 0, and DT values on S. neorickii. The lowest T and GRR values found on S. corneliomulleri were parallel with the previous study of Sridhar et al (2019b). They reported that S. corneliomulleri and S. pennellii were resistant to T. absoluta.…”

Section: Discussionsupporting

confidence: 88%

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Population parameters of the tomato leaf miner Tuta absoluta (Lepidoptera: Gelechiidae) on wild tomato species

Aslan¹,

Birgücü²

2022

Plant Prot. Sci.

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In this study, the effects of five wild tomato species (Solanum chilense, Solanum corneliomulleri, Solanum neorickii, Solanum huaylesense and Solanum pennellii) on the life table parameters of Tuta absoluta were determined for the first time, and the larval development time, lifespan, pupal period, fecundity, and female/male longevity were also estimated. According to the data obtained from the study, S. chilense was determined as the most suitable species for the development of T. absoluta. Among the wild tomato species, S. corneliomulleri and S. neorickii were determined as the most effective hosts against T. absoluta in terms of the intrinsic rate of increase, net reproductive rate, mean generation time, gross reproduction rate, population doubling time, and finite rate of increase than the other species. These two species were also effective against the pest on the egg, larval development, total longevity, and fecundity. According to these results, S. corneliomulleri and S. neorickii are viable candidates for the development of new resistant tomato genotypes to T. absoluta.

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Section: Discussionsupporting

confidence: 88%

“…Wild tomato species, especially S. pennellii, have glandular trichomes. Although many studies reported that S. pennellii was resistant to T. absoluta (Goncalves Neto et al 2010;Maluf et al 2010b;Bitew 2018;Sridhar et al 2019b), it showed moderate resistance among the wild tomato species examined in our study.…”

Section: Discussioncontrasting

confidence: 64%

Population parameters of the tomato leaf miner Tuta absoluta (Lepidoptera: Gelechiidae) on wild tomato species

Aslan¹,

Birgücü²

2022

Plant Prot. Sci.

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“…However, these management methods are not effective because of the cryptic nature of the feeding larvae (Guedes and Picanco, 2012;Ali and Husin, 2017). Use of synthetic chemical insecticides has been the quickest and most efficient method to control the pest, but this is not sustainable due to insecticide resistances of T. absoluta, negative effects of insecticides on the environment, non-target organisms and the health of farmers (Sridhar et al, 2019). As such, it has prompted research into safer integrated control approaches that strongly feature the use of biorationals (Giorgini et al, 2019;Tarusikirwa et al, 2020;Erasmus and Van Den Berg, 2021).…”

Section: Introductionmentioning

confidence: 99%

Non-host plant odors influence the tritrophic interaction between tomato, its foliar herbivore Tuta absoluta and mirid predator Nesidiocoris tenuis

et al. 2023

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The tomato leafminer, Tuta absoluta is a destructive invasive pest of cultivated tomato and other Solanaceae plants, with yield losses of 80-100%. Mirid predators are key natural enemies of T. absoluta, but they also feed on host plants in the absence of their prey. Management of T. absoluta is a challenge due to its high biotic potential, resistance to many insecticides and the absence of sufficiently adapted auxiliary fauna in its new dispersion zones. Olfaction plays an important role in the tritrophic interaction between tomato, its herbivore pest T. absoluta and its mirid predators, which can be influenced by non-host plant odors. However, how non-host odours shape this interaction is poorly understood. Previously, we had demonstrated belowground crop protection properties of certain Asteraceae plants against the root-knot nematode Meloidogyne incognita, pest of tomato and other Solanaceae plants. Additionally, Asteraceae plants impact negatively on feeding behavior of above-ground pests of Solanaceae plants, including the greenhouse whitefly (Trialeurodes vaporariorum) and green peach aphid (Myzus persicae). Here, we tested the hypothesis that foliar volatiles from some of these non-host Asteraceae plants can influence the tomato-T. absoluta-mirid predator tritrophic interaction. In olfactometer assays, T. absoluta females were attracted to volatiles of the Solanaceae host plants tomato and giant nightshade but avoided volatiles of the Asteraceae plants, blackjack and marigold, and the positive control, wild tomato, when tested alone or in combination with the host plants. Coupled gas chromatography-mass spectrometry analysis showed that host and non-host plants varied in their emission of volatiles, mainly monoterpenes and sesquiterpenes. Random forest analysis combined with behavioral assays identified monoterpenes as the host plant attractive blend to T. absoluta and its mirid predator, with sesquiterpenes identified as the non-host plant repellent blend against T. absoluta. Contrastingly, the mirid predator was indifferent to the non-host plant repellent sesquiterpenes. Our findings indicate that terpenes influence the tomato-T. absoluta-mirid predator tritrophic interaction. Further, our results emphasize the importance of studying crop protection from a holistic approach to identify companion crops that serve multi-functional roles.

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“…The TLM, is the most destructive insect pest attacking tomato plant, L. esculentum in early infestation, newly emerged neonates (First instar) penetrate the leaf into the mesophyll layer and feed between the lower and upper surfaces of the leaf to form small and transparent mines, As a result of continuous feeding by the larvae, the irregular mines combine together and eventually form galleries, except for the roots, the larvae attack all other parts of the tomato plant viz, leaves, flowers, stems and both green and red fruits, T. absoluta infestation may cause 50-100% losses in the tomato crop [16]. Application of chemical insecticides is the most commonly used practice for suppression of T. absoluta infestations, though the pesticides used against this pest give satisfactory control, extensive use of insecticides may lead to the development of insecticide resistance, harmful effects on the environment, human health, and beneficial animals, Entomopathogens like Bacillus thuringiensis, Beauveria bassiana, and spinosad, neem plant extract are eco-friendly and effective options both under polyhouse and open field conditions [17]. The aim of this study was to evaluated some of the components of IPM including biocontrol agents for identifying effective treatments for including in integrated management of T. absoluta.…”

Section: Introductionmentioning

confidence: 99%

Toxicity of some Biocides in the Tomato leaf Miner Tuta Absoluta Meyrick (Lepidoptera: Gelechiidae) in Laboratory

Ali

Muhammad

2023

IOP Conf. Ser.: Earth Environ. Sci.

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The experiment was conducted in the Entomology Laboratory/Plant Protection Department/College of Agriculture and Forestry/Mosul University/Iraq in the year 2021, to evaluated the toxicity of biocides, Beauveria bassiana (Bals.) Vuill, (conc. 1, 3, 5 g/L) Bacillus thuringiensis var. kurstaki (conc. 1, 3, 5 g/L), Spinosad (conc. 0.15, 0.30, 0.60 ml/L) and Neem plant extract (Azadirachta indica) (conc. 0.25, 0.50, 1.00 ml/L) on the third larval instar and pupal stage of tomato leafminer (TLM) under laboratory conditions, 25 - 27 °C, and the average relative humidity was 60 - 65%. The results of the study showed that the treatment with Spinosad at a concentration of 0.60 mm/L was significantly superior compared to the rest of the biocides, with an average mortality of 86.67% and 90.67% for larvae and pupae, respectively. All biocides differed significantly compared to the control, which amounted to 0.00%, and the highest mean of larval mortality was 71.67% for the reading after ten days of treatment, which differed significantly compared to the reading after one and three days of treatment, which amounted to 23.89 and 50.56%, respectively. While the reading after nine days of treatment outperformed significantly, and recorded the highest average of pupal mortality, which amounted to 68.00%, compared to the lowest average reading after seven days of treatment, which amounted to 44.00%. The treatment with the biocides B. thuringensis at a concentration of 1, 3 and 5 g/L was superior, with the lowest average percentage of transformation of larva to pupal stage reaching 15.56, 2.22 and 0.00%, respectively, compared to the rest of the concentrations of other biocides and the control, which was 73.33%. The biocides B. thuringensis was significantly superior to the rest of the biocides, and the lowest average percentage of emergence was recorded, as it reached 6.67% in the third concentration 5 g/L, which did not differ significantly compared to the third concentration of the rest of the biocides, however, it differed significantly compared to the rest of the concentrations of other biocides, and the control, as the highest mean of the percentage of emergence rate was 76.67%. It is noted from the study that all biocides had a significant effect on their toxicity to TLM compared to the control, and that the toxicity of biocides for the third larval instar and pupa of TLM increased with increasing concentration and number of days after treatment, and led to a decrease in the average percentage of adult emergence with an increase in concentration used compared to the control. From the results of this study, it is possible to introduce these pesticides in the integrated pest management programs for TLM in open fields and protected cultivation.

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Efficacy of integrated pest management tools evaluated against Tuta absoluta (Meyrick) on tomato in India

Cited by 7 publications

References 13 publications

Population parameters of the tomato leaf miner Tuta absoluta (Lepidoptera: Gelechiidae) on wild tomato species

Population parameters of the tomato leaf miner Tuta absoluta (Lepidoptera: Gelechiidae) on wild tomato species

Non-host plant odors influence the tritrophic interaction between tomato, its foliar herbivore Tuta absoluta and mirid predator Nesidiocoris tenuis

Toxicity of some Biocides in the Tomato leaf Miner Tuta Absoluta Meyrick (Lepidoptera: Gelechiidae) in Laboratory

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