Status and Distribution

An adventive pest species of Neotropical origin, first introduced into Europe (Spain) in 2007. Since then, has been found in Morroco, Algeria and the Netherlands (2008), spreading further and extensively across Europe, including France between 2009 and 2010.

Initially associated with imported tomatoes, but since the first wild caught specimens in England (three sites in 2010), it has been attracted to light traps on an increasing number of occasions. This has occurred over a wide geographical area in situations that indicate a population is present in the wild, such as in the Midlands, as well as arriving as a probable primary immigrant at light traps in southern and eastern England and southern Ireland. 

FERA have instigated control measures and it is recommended anyone finding this species refers to http://www.fera.defra.gov.uk/plants/plantHealth/pestsDiseases/tomatoMoth.cfm

National Status: 

Adventive

Bradley & Fletcher no: 

825a
Photo courtesy of UK Moths.

Provisional Map

Maps updated with all data received by February 2018.

    Imago

    Tuta absoluta (Photo: P Clement)  Tuta absoluta (female), Torpoint 21.10.14 (Photo: L Truscott)  Tuta absoluta Cleeve Common, VC33, 2014 (Photo: O. Wadsworth)  Tuta absoluta, Clos Helyg, Wales (Photo: C Manley)  Tuta absoluta, Clos Helyg, Wales (Photo: C Manley)

    Dissection Group

    Foodplant and Larval Feeding Signs

    On imported Lycopersicon esculentum (tomatoes) where it can be a serious pest. Abroad it has also been reported as a pest on Solanum muricatum (pepino dulce), S. melongena (aubergine), S. nigrum (black nightshade), S. puberulum, S. lyratum, S. elaeagnifolium (silver-leaved nightshade), Datura stramonium (thornapple), D. ferrox (long-spined thornapple), Nicotiana glauca (tree tobacco), Lycium chilense and Lycopersicon hirsutum (wild tomato).

    The larva may feed on many different parts of the food-plant including mining the leaves in a central white blotch with side galleries containing areas of frass or will bore into buds, stalks and fruits.

    Habitat

    In the wild there is no specific habitat association currently known in the British Isles. Records in these circumstances have been at light traps in inland gardens and coastal or near coastal localities, the latter indicating primary immigration as the most likely source.

    Finding the Moth

    Larva: can be found on imported tomatoes feeding on the fruits producing small circular holes (or larger lesions) within a discoloured area on the skin. The larva is also known to mine the leaves and stems and should be looked for on home grown tomatoes as well as related plants in the wild, such as the nightshades.

    The mine in the leaves is similar to that of Scrobipalpa costella, the larva of which has segments two and three (the area behind the broad blackish prothoracic plate) a dull purplish brown colour. In T. absoluta this area is yellowish to pale green beyond the narrower black plate. The larva of Acrolepia autumnitella, another species that feeds on Solanaceae, lacks the black pro-thoracic plate.

    Adult: attracted to light and, as a migrant species, is increasingly being encountered in south-east and southern coastal areas.

    Similar Species

    Very similar to a few Scrobipalpa species, particularly Scrobipalpa atriplicella, with which it shares the cream-coloured underside to the abdomen and the grey, black and orange-brown mottling on the forewings. Tuta absoluta (wingspan 10 - 12mm) is generally smaller than S. atriplicella, but with some overlap, and has more slender wings. The third segment of the labial palps have two distinct dark rings in T. absoluta whereas in S. atriplicella segment three is more generally mottled dark fuscous on a pale background. Dissection may be required in worn specimens or with smaller specimens of S. atriplicella (11 - 17mm wingspan).

    An almost black specimen with a whitish subterminal fascia was attracted to light in Suffolk during 2016 (Raymond Watson pers. comm.).

    Larval Occurrence

    Larval Occurrence

    Flight Period

    Flight Period

    Recorded in the wild (at light) from early June to late October and with a single record in mid-December. May appear at other times of the year if the larva has fed inside greenhouses etc.