Bioassay of Three Solanaceous Weeds as Alternative Hosts for the Invasive Tomato Leafminer<i>Tuta absoluta</i>(Lepidoptera: Gelechiidae) and Insights on their Carryover Potential

Abbes, Khaled; Harbi, Ahlem; Elimem, Mohamed; Hafsi, Abir; Chermiti, Brahim

doi:10.4001/003.024.0334

Cited by 32 publications

(22 citation statements)

References 26 publications

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“…Taking these steps would enhance the usefulness of reports claiming many new host species for T. absoluta (Bayram et al 2015; Mohamed et al 2015). Recent examples of such laboratory studies confirmed that eggplant (aubergine) and S. nigrum are viable hosts for T. absoluta, whereas D. stramonium and Datura ferox L. (Solanaceae) are not compatible hosts (Mohamed et al 2015;Abbes et al 2016). This later finding was consistent with the absence of T. absoluta on D. stramonium in our study.…”

Section: Discussionsupporting

confidence: 91%

Host Range of the Invasive Tomato Pest Tuta absoluta Meyrick (Lepidoptera: Gelechiidae) on Solanaceous Crops and Weeds in Tanzania

Smith

Dubois²,

Mallogo³

et al. 2018

Florida Entomologist

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Section: Discussionsupporting

confidence: 91%

Host Range of the Invasive Tomato Pest Tuta absoluta Meyrick (Lepidoptera: Gelechiidae) on Solanaceous Crops and Weeds in Tanzania

Smith

Dubois²,

Mallogo³

et al. 2018

Florida Entomologist

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“…In the absence of control, yield losses ranging 80-100% have been reported in open and protected tomato fields [5]. A cost-benefit analysis has shown a significant increase in cost of production through high use of insecticides [2,16], increased tomato market prices as farmers try to recover the high production cost, spatial prohibition of tomato seedlings and fruits trade [17] culminating into overall increased food and nutrition insecurity [18].…”

Section: Introductionmentioning

confidence: 99%

Evidence of rapid spread and establishment of Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae) in semi-arid Botswana

2018

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Background: Tuta absoluta (Meyrick), a major invasive pest of Solanaceous plants, was recently detected in Botswana. Abiotic and biotic factors, together with a suite of population demographic traits are likely key for species propensity and invasion success. First, we determined the movement of T. absoluta from its core detection centre to new invasion areas using pheromone baiting and established likely biotic dispersal drivers. Second, we measured thermal tolerance vis critical thermal limits and lower and upper lethal limits to determine how these traits shape population establishment. Results: We detected T. absoluta in all 67 pristine sites across nine districts of Botswana. Within-district trap catches varied between cultivated and wild hosts but were generally not statistically significant (P > 0.001). We report three major wild host plants for T. absoluta as biotic dispersal drivers: Solanum coccineum (Jacq.), Solanum supinum (Dunal) and Solanum aculeatissimum (Jacq.). Solanum coccineum and S. supinum were omnipresent, while S. aculeatissimum distribution was sporadic. Thermal tolerance assays showed larvae were more heat tolerant, with a higher critical thermal maxima (CT max) than adults (P < 0.001), whereas the adults were more tolerant to cold with a significantly lower (P < 0.001) critical thermal minima (CT min) compared to larvae. The upper lethal temperatures ranged from 37-43 °C, whereas the lower lethal temperatures ranged from − 1 to − 12 °C for 0-100% mortality, respectively. In the light of prevailing environmental (habitat) temperatures (T hab), warming temperature (7.29 °C) and thermal safety margin (22.39 °C) were relatively high. Conclusion: Tuta absoluta may not be under abiotic physiological or biotic constraint that could limit its geographical range extension within Botswana. The ubiquity of wild Solanaceous plants with the bridgehead of year-round intensive monocultures of Solanaceous crops within a favourable climatic framework may mean that environmental suitability aided the rapid spread of T. absoluta.

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“…It is considered a key pest of tomato crops in greenhouse and fields (Cocco et al, 2012). The species of the Solanaceae family are the main host of the pest, tomato, potato and European black nightshade being the most suitable (Abbes et al, 2016;Desneux et al, 2010;Biondi et al, 2016), but it can also attack eggplants, peppers and tobacco (Mohamadi et al, 2017). At the same time, it can lay eggs and grow on other species of plants in the families: Amaranthaceae, Convolvulaceae, Fabaceae and Malvaceae (Biondi et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Tuta Absoluta (Meyrick) (Lepidoptera: Gelechiidae) – Biology, Ecology, Prevention and Control Measures and Means in Greenhouse Tomato Crops. A Review

Hogea¹

2020

CTNS

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The tomato leafminer, Tuta absoluta (Meyrick) is a dangerous pest, difficult to control in tomato crops. In Europe, it was originally reported in eastern Spain, at the end of 2006, subsequently spreading very fast throughout the Mediterranean basin and in various countries in Europe. In Romania, was first reported in 2009, in the North West area (Satu Mare), and a year later he was identified near Bucharest, in greenhouse crops. The larvae attack both foliage and fruit during all tomato growth stages. On leaves, larvae feed only on mesophyll, leaving the epidermis intact. They also penetrate into tomato fruits where they feed and grow, leaving behind mines and galleries. The species of vegetables from Solanaceae family are the main hosts of the pest. Control of Tuta absoluta infestations is difficult to achieve, because the larvae are protected in the leaf mesophyll or inside the fruits. Chemical control is the primary method to manage the pest, but there are also alternative methods of control, less polluting, such as: biological control through treatments with biological products, by releasing of parasitoids and predators, insect-proof nets, pheromone traps and so on. Treatments must be applied before the pest penetrates under the epidermis of the leaves or in fruits.

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Bioassay of Three Solanaceous Weeds as Alternative Hosts for the Invasive Tomato LeafminerTuta absoluta(Lepidoptera: Gelechiidae) and Insights on their Carryover Potential

Cited by 32 publications

References 26 publications

Host Range of the Invasive Tomato Pest Tuta absoluta Meyrick (Lepidoptera: Gelechiidae) on Solanaceous Crops and Weeds in Tanzania

Host Range of the Invasive Tomato Pest Tuta absoluta Meyrick (Lepidoptera: Gelechiidae) on Solanaceous Crops and Weeds in Tanzania

Evidence of rapid spread and establishment of Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae) in semi-arid Botswana

Tuta Absoluta (Meyrick) (Lepidoptera: Gelechiidae) – Biology, Ecology, Prevention and Control Measures and Means in Greenhouse Tomato Crops. A Review

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