First Record of<i>Tuta absoluta</i>(Lepidoptera: Gelechiidae) in Senegal

Pfeiffer, Douglas G.; Muniappan, R.; Sall, Dienaba; Diatta, Paterne; Diongue, Aliou; Dieng, Elhadj Oumar

doi:10.1653/024.096.0241

Cited by 72 publications

(49 citation statements)

References 6 publications

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“…6) resulting in economic loss irrespective of high pesticide use. As reported in Senegal [10] and in Bulgaria [8], the plant damage symptoms, larva and adult morphological features observed under the microscope are typical of South American tomato leaf miner (Insecta; Lepidoptera: Gelechiidae; Tuta absoluta, Meyrick 1917).…”

Section: Resultsmentioning

confidence: 58%

“…Since its introduction to Spain in 2006, it has invaded most of the countries in Europe, Mediterranean, Middle East, northern, western and eastern Africa and India in South Asia [3,4]. In northern Africa, it was reported in Tunisia in 2008 [1], north of the Sahel in 2008 [4], western Africa in 2010 and Sudan and Ethiopia in 2011 [10]. In these countries, it causes 80-100 % crop loss when proper management technologies are not implemented [7].…”

Section: Introductionmentioning

confidence: 99%

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First record of tomato leaf miner Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae) in Tanzania

Chidege

Al-zaidi²,

Naveed³

et al. 2016

Agric & Food Secur

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Background: Pest invasion has been a disruptive phenomenon in nature, the consequence being ecological and economical negative effect in natural ecosystem of the area. In agriculture, introduced insect pest has a devastating effect on food production. Such a phenomenon occurred in Ngabobo village, Ngarenanyuki, King' ori, in the Arumeru District of Tanzania, a key tomato production area, when boring Lepidoptera larvae were found on aerial parts of tomato (Solanum lycopersicum L.) plants between 2014 and 2015. Larvae created blotched leaf galleries and superficial mines on fruits.

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Section: Resultsmentioning

confidence: 58%

Section: Introductionmentioning

confidence: 99%

First record of tomato leaf miner Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae) in Tanzania

Chidege

Al-zaidi²,

Naveed³

et al. 2016

Agric & Food Secur

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“…Thereafter, it invaded the Mediterranean Basin, Europe, Middle East, South Asia (India), and north, east and west Africa [13,16,18]. In north Africa, T. absoluta was detected north of the Sahel, Tunisia and Morocco in 2008 [16,19,20], west Africa; in Niger and Nigeria in 2010, and in Senegal in 2012 [21] east Africa; in Sudan and Ethiopia in 2011 [21,22], in Kenya in 2013 [11], in Tanzania in 2014 [23] and in Uganda in 2015 [11], southern Africa; in Zambia [24] and in South Africa in 2016 [25,26] (see distribution map, Fig. 1).…”

Section: Introductionmentioning

confidence: 99%

“…The larval stage takes 12-15 days and goes through four developmental instars [28,32]. The first 2 instars have been reported to mine between the epidermal layers of the leaf leading to a reduction in the photosynthetic area and premature senescence [21]. Thereafter, larvae leave the mines as 3rd and 4th instars, boring into stalks, apical buds and fruits [17].…”

Section: Introductionmentioning

confidence: 99%

First report of tomato leaf miner, Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae), in Botswana

2017

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Background:The tomato leaf miner Tuta absoluta (Lepidoptera: Gelechiidae) is an invasive insect pest of tomato and other solanaceous plants which is rapidly expanding its geographic range. It has a highly damaging effect on tomatoes and potential of threatening food production and consequently national food security. Here, we report on the first detection of T. absoluta in Botswana, its consequences on agriculture and food security, and recommend on management strategies. The pest was observed feeding on Solanum lycopersicum L. plants at Genesis farm, Matshelagabedi village in northern Botswana. Following detection, we incubated infected tomato fruits until adult eclosion. External morphology was conducted and confirmed at Botswana International University of Science and Technology (Botswana). Molecular identification and morphological male genitalia were confirmed at Stellenbosch University (South Africa). In addition, we set up some sex-specific pheromone (Tuta optima PH-937-OPTI) at the core detection site and surrounding areas.Results: Morphological genitalia features of pheromone-baited trap catches confirmed the insect pest was indeed T. absoluta. Molecular analysis also confirmed the morphological identification and thus confirming this first report of T. absoluta in Botswana. Conclusion:This first record of T. absoluta in Botswana is worth reporting to promote coordinated efforts amongst stakeholders, research specialists and extension officers in Botswana and across the southern African region in monitoring and managing the pest.

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“…Pests include worms, such as the cotton bollworm (Helicoverpa armigera), nematodes, mining insects, thrips, various aphid species, and mites, e.g., spider mites (Tetranychus urticae). Recently, outbreaks of the tomato leaf miner (Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae) have caused substantial damage to tomato crops in some West Africa countries [17,18]. However, in recent years, tomato growers throughout West Africa have struggled with an emerging viral disease known generically as tomato leaf curl disease (ToLCD) [4,19,20].…”

Section: Introductionmentioning

confidence: 99%

Connecting smallholder tomato producers to improved seed in West Africa

Perez¹,

Froikin-Gordon²,

Abdourhamane³

et al. 2017

Agric & Food Secur

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Background: Environmental heterogeneity, emerging pathogens and limited access to financial and agricultural inputs prevent farmers from producing consistent crop yields in many developing countries. Yield instability impedes establishment of processing and export industries, thereby inhibiting economic development. Modern varieties offer significant increases in yield stability. Results:A deeply collaborative, multi-national germplasm trialing network was established in West Africa to identify tomato varieties well adapted to each country and mobilize those varieties into local seed distribution networks alongside an integrated pest management program. Research partners in seven West African countries evaluated over 100 tomato varieties for resistance to tomato leaf curl disease (ToLCD). Using biotechnology, the identity and distribution of the key viruses (begomoviruses) causing ToLCD in these countries were identified, and a vector-independent inoculation method (agroinoculation) was developed. The trials identified a set of high-performing varieties with resistance. Agroinoculation with the three prevalent begomoviruses confirmed resistance. Conclusions:These trial results fulfill the new Economic Community of West African States harmonized seed regulation policy, which requires at least 2 years of national performance trials prior to commercialization of a tomato variety. To compete with a rapidly expanding canned tomato import industry, West African growers need to increase productivity and processing capacity; therefore, we also assessed processing and export trade data for fresh and processed tomatoes from each of the seven countries.

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First Record ofTuta absoluta(Lepidoptera: Gelechiidae) in Senegal

Cited by 72 publications

References 6 publications

First record of tomato leaf miner Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae) in Tanzania

First record of tomato leaf miner Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae) in Tanzania

First report of tomato leaf miner, Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae), in Botswana

Connecting smallholder tomato producers to improved seed in West Africa

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