Reference : Tuta absoluta (Lepidoptera: Gelechiidae) ability to develop on potato tubers
Scientific congresses and symposiums : Poster
Life sciences : Entomology & pest control
http://hdl.handle.net/2268/204691
Tuta absoluta (Lepidoptera: Gelechiidae) ability to develop on potato tubers
English
Bawin, Thomas mailto [Université de Liège > Agronomie, Bio-ingénierie et Chimie (AgroBioChem) > Entomologie fonctionnelle et évolutive >]
De Backer, Lara mailto [Université de Liège > Agronomie, Bio-ingénierie et Chimie (AgroBioChem) > Entomologie fonctionnelle et évolutive >]
Yarou, Boni Barthélémy mailto [Université de Liège - ULiège > Agronomie, Bio-ingénierie et Chimie (AgroBioChem) > Entomologie fonctionnelle et évolutive > >]
Francis, Frédéric mailto [Université de Liège > Agronomie, Bio-ingénierie et Chimie (AgroBioChem) > Entomologie fonctionnelle et évolutive > >]
Verheggen, François mailto [Université de Liège > Agronomie, Bio-ingénierie et Chimie (AgroBioChem) > Entomologie fonctionnelle et évolutive >]
16-Dec-2016
No
No
International
23rd Congress of Zoology
15 – 17 December 2016
Antwerp
Belgium
[en] Insect-host interaction ; Scrobipalpuloides absoluta ; Solanaceae ; Solanum tuberosum ; Potato tuber
[en] Tuta absoluta (Lepidoptera: Gelechiidae) is a widespread pest that threatens commercial production of solanaceous crops. Larvae feed on the mesophyll of all aerial parts of the plants resulting in significant yield losses and cosmetic damages.It is classically assumed that underground plant parts are not affected but larval development on potato tubers has recently been suspected. However, this assumption is poorly supported in the literature. Potato tubers might represent an unsuspected mean of persistence and dispersal in agricultural environments.Oviposition tests were here conducted using dormant and active (sprouts less than 5 cm) potato tubers in net cages. Oviposition only occurred on the sprouts of active tubers, supporting larval growth until adult emergency. Tuber dissection revealed burrows starting from sprouts inside the flesh. Additional fitness assays were conducted on non-sprouted tubers and revealed that first instar larvae were able to enter the skin and create burrows, living inside and feeding on potato flesh, although none of them survived.
Researchers ; Professionals ; Students
http://hdl.handle.net/2268/204691

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