Tuta absoluta
 . [Distribution map].

CABI,; EPPO,

doi:10.1079/dmpp/20113166052

Cited by 3 publications

(4 citation statements)

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“…In the Mediterranean area, native parasitoids and predators can play an important role in attacking Tuta absoluta eggs. [23][24][25][26] 26 This seems to be the case of Macrolophus pygmaeus Rambur (Hemiptera: Miridae) [27][28][29][30] and Trichogramma achaeae (Hymenoptera: Trichogrammatidae). [31][32][33] Laboratory and field studies using Trichogramma achaeae against Tuta absoluta have shown promising results in glasshouses tomatoes of the Azores, 33 but an effective control of pest populations was not achieved due to a low rate of parasitism.…”

Section: Introductionmentioning

confidence: 99%

Feeding preference and intraguild interactions between the parasitoid Trichogramma achaeae and the predator Macrolophus pygmaeus, two biological agents of Tuta absoluta

Borges¹,

Oliveira

Durão³

et al. 2023

Pest Management Science

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BACKGROUNDTuta absoluta is an exotic species and a major pest of tomato crops in Europe. Macrolophus pygmaeus and Trichogramma achaeae are two biocontrol agents widely used in integrated pest management programs of the South American tomato pinworm Tuta absoluta. In this study, we evaluated under laboratory conditions the (i) voracity of M. pygmaeus females fed on single diets of Tuta absoluta eggs parasitized or unparasitized by Trichogramma achaeae, (ii) voracity and feeding preference of M. pygmaeus females provided with mixed diets of Tuta absoluta eggs unparasitized and parasitized by Trichogramma achaeae and (iii) effect of competitive and intraguild interactions between M. pygmaeus and Trichogramma achaeae on the number of Tuta absoluta eggs consumed and/or parasitized. Lastly, we assessed under field conditions the effect of interspecific and intraspecific interactions between natural enemies on the number of Tuta absoluta eggs consumed and/or parasitized.RESULTSMacrolophus pygmaeus consumed more unparasitized than parasitized eggs of Tuta absoluta. Under mixed diet regimes, Manly indices revealed a feeding preference for unparasitized eggs, and a decrease in the total number of eggs consumed, as the proportion of available parasitized eggs increased, whereas the unparasitized eggs were consumed in direct proportion to their availability. Conspecific interactions between M. pygmaeus, in contrast to Trichogramma achaeae, revealed the possible occurrence of intraspecific competition. For intraguild heterospecific interactions, the number of Tuta absoluta eggs consumed by M. pygmaeus and parasitized by Trichogramma achaeae was lower than that predicted for additive and non‐interactive scenarios. Under field conditions, a significant difference between the conspecific treatment and heterospecific treatments revealed a slightly higher success rate in controlling Tuta absoluta when both M. pygmaeus and Trichogramma achaeae were used simultaneously.CONCLUSIONMacrolophus pygmaeus prefers unparasitized eggs of Tuta absoluta but inflicts intraguild predation on Trichogramma achaeae. In conspecific experiments, mutual interference between M. pygmaeus predators intensifies as the number of individuals increases, but for Trichogramma achaeae, it occurs in an unpredictable manner. Adding Trichogramma achaeae could significantly increase the level of control of Tuta absoluta compared to what could be achieved when only M. pygmaeus is present in glasshouse tomatoes. © 2023 Society of Chemical Industry.

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Section: Introductionmentioning

confidence: 99%

Feeding preference and intraguild interactions between the parasitoid Trichogramma achaeae and the predator Macrolophus pygmaeus, two biological agents of Tuta absoluta

Borges¹,

Oliveira

Durão³

et al. 2023

Pest Management Science

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“…While not included in the study of van Lenteren et al, 21 it later appears 9 as a valuable natural enemy of lepidopterans pests, commercialized in Europe for the first time in 2012, and having a market value rated of 'medium' due to 10,000 to a 100,000 individuals sold per week. The shift of the commercial importance of Trichogramma achaeae and the increasing number of scientific studies using M. pygmaeus as model pest species 25,33,64,65 may have been a consequence of the invasion of Europe by Tuta absoluta, a major pest of tomato crops. 10 The current major concerns with Tuta absoluta together with the increase of scientific research, makes its natural enemies valuables market products for the near future.…”

Section: Benefit-cost Analysis (Investor/factory Perspective)mentioning

confidence: 99%

Economic and financial model to the mass‐rearing of Macrolophus pygmaeus (Rambur) (Heteroptera: Miridae), a biological control agent against the tomato moth Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae) in protected culture

Dutra

Batista

Teixeira

et al. 2023

Pest Management Science

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BACKGROUNDTuta absoluta (Meyrick) is a major pest of tomato produced in glasshouses and open field, causing severe damages to crops, reducing the quality of tomato fruits. The current maintenance of the pest populations below the economic threshold is not achieved by natural and classical control, thus requiring the continuous application of biological control agents (BCAs), under an augmentative or inoculative approach. The present study aims to develop an economic and financial model to evaluate the commercial viability of a continuous mass production of Macrolophus pygmaeus (Rambur), a BCA commonly used against the tomato moth, Tuta absoluta, in protected culture. The estimations for our model were based on two approaches: the farm‐level impact analysis and the benefit–cost analysis.RESULTSThe results of the farm‐level analysis show that the adoption of a more sustainable biological control approach is profitable for farmers and the benefit–cost analysis provides evidence that the investment on a new factory dedicated to the mass rearing of M. pygmaeus to control tomato moth populations generates a positive net present value (NPV) of 7.2 million euros, corresponding to an internal rate of return (IRR) of 28.4% per year.CONCLUSIONOur results are in line with (i) the more recent European Commission proposals for a new Regulation on sustainable use of plant protection products, which includes the reduction of 50% the use and risk of chemical pesticides by 2030 and (ii) most of the existing literature which conclude that new projects on BCA production are worth investments. © 2023 The Authors. Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.

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“…Consequently, there is a growing need for a paradigm shift from insecticides to more efficient, safer and eco-friendly pest management options. Biological control, particularly entomopathogenic fungi (EPF), has emerged as a promising alternative to insecticides for managing insect pests (Keçeci and Öztop, 2017;Vega and Kaya, 2012;CABI, 2021). Moreover, entomopathogenic species have virulence factors to cause disease and kill insect pests (Vega and Kaya, 2012).…”

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confidence: 99%

“…Moreover, entomopathogenic species have virulence factors to cause disease and kill insect pests (Vega and Kaya, 2012). Entomopathogenic fungi (EPF) are one of the types of biological control agents to combat P. absoluta (CABI, 2021). Using naturally existing indigenous or exotic entomopathogen fungi species such as Metarhizium anisopliae and Beauveria bassiana are effective bioagents and have been recommended and reported as they are pathogenic to tomato leaf miners (Youssef, 2015;Shiberu and Getu, 2017).…”

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confidence: 99%

Efficacy of Beauveria Bassiana and Metarhizium anisopliae Against Tomato Leaf Miner Phthorimaea Absoluta(meyrick)

DABSU

Kovancı

2023

ije

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The tomato leaf miner Phthorimaea absoluta(Meyrick), earlier known by the scientific name Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae) is one of the most devastating global pests of tomatoes. Using indigenous entomopathogenic fungi can be a promising solution to manage it. Effıcacyof EPF isolates on third-instar larvae was carried out in Ethiopia during 2021-2022. Ten larvae were inoculated with conidiaa suspensions with three replications. The result showed that larval mortality was significantly different (p<0.05) among concentrations and isolates. Beauveria bassiana isolates caused 70 to 81% mortality, the lowest LC 50 was 1.87x104 to 9.79x10 4 conidia/ ml; and LC 95 was 5.68x108 to 1.10x10 11 conidia/ml and shortest LT 50 was 3.6 to 5.7 days. These were considered highly virulent while Metarhizium anisopliae determined as moderately virulent having 46 to 63% mortality (highest LC50 was 1.36x106 to 4.94x10 7and LT 50 was 4.3 to 8 days). Results also revealed 1x10 10 conidia/ ml is the most effective dose while 1x10 6 is the least effective.

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Tuta absoluta . [Distribution map].

Cited by 3 publications

References 0 publications

Feeding preference and intraguild interactions between the parasitoid Trichogramma achaeae and the predator Macrolophus pygmaeus, two biological agents of Tuta absoluta

Feeding preference and intraguild interactions between the parasitoid Trichogramma achaeae and the predator Macrolophus pygmaeus, two biological agents of Tuta absoluta

Economic and financial model to the mass‐rearing of Macrolophus pygmaeus (Rambur) (Heteroptera: Miridae), a biological control agent against the tomato moth Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae) in protected culture

Efficacy of <i>Beauveria Bassiana</i> and <i>Metarhizium anisopliae</i> Against <i>Tomato Leaf</i> Miner <i>Phthorimaea Absoluta</i>(meyrick)

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