First results
Identification of O. palus
Characterization of Miridae fauna in mango orchards in La Reunion
Host and others
plants
Damage assessment
Search for host plants and non-host plants
Miridae in mango orchards
Annual spatio-temporal dynamics
? 30 species identified 4 host species Mang0 Mangifera indica L. Rose pepper Schinus terebinthifolius Raddi Jujube Ziziphus mauritiana Lam. Lychee Litchi chinensis Sonn.
Description and characterization of damages on mango flowers
Genetic diversity and structure of O. palus population in the
Mascarenes islands (Reunion Island, Mauritius) acccording to host
plants
Design of 12 polymorphic microsatellite markers
Sampling on the 6 main plants
Mango
Rose pepper Lychee
Jujube
Dombeya sp.
Avocado (Persea americana Mill.)
Factors tested: Plant
Sampling site
First results
Morguen ATIAMA
*1, Cédric AJAGUIN-SOLEYEN
1, Hélène DELATTE
1, Armand MATOCQ
2, Marie-Ludders MOUTOUSSAMY
1, Thibault RAMAGE
3,
Mickael TENAILLEAU
4& Jean-Philippe DEGUINE
1* CIRAD, 7 chemin de l’IRAT, 97410 Saint-Pierre, Ile de la Réunion, France, [email protected]
1 Centre de coopération Internationale en Recherche Agronomique pour le Développement (CIRAD), UMR Peuplements Végétaux et Bioagresseurs en Milieu Tropical (CIRAD- Université de La Réunion), Saint-Pierre, La Réunion, France; 2 Muséum National d’Histoire Naturelle, Département
Systématique & Évolution (Entomologie), Paris, France; 3 Consulting entomologist; 4 Association Réunionnaise pour la Modernisation de l’Economie Fruitière, Légumière et HORticole (ARMEFLHOR)
24 mango orchards insecticide-free
distributed throughout the production area
Rearing method
Life cycle
Biological cycle at 25°c 2 host plant species
Elaboration of rearing technics
Several tests :
- Different plants (mango flowers, green beans, rose pepper flowers, young leaves,…),
- Abiotic conditions (T°C, photoperiod, relative humidity),
- Artificial diets (Cohen, 2000; Portilla et al. 2011; Feng et al. 2012)
Creation of a field identification key for Miridae species in mango orchards of Reunion Island
T. apicalis O. palus
5 nymphal instars
First results
First results
First results
Eurystylus bellevoyei (Reuter, 1879)
Nesidiocoris tenuis (Reuter, 1895)
Taylorilygus apicalis (Fieber, 1861)
Fifteen species collected
Specific identification in process by A. Matocq Some species already determined :
Corizidolon notaticolle (Reuter, 1907) Campylomma leucochila (Reuter, 1905)
2 species of genus Deraeocoris 2 species of genus Nesidiocoris 1 species of genus Proboscidoris
Acknowledgments: This work was subsidized by Regional council of La Réunion and by Cirad. Thanks to C. Simiand, A. Franck, B. Béziat, M. Naze, T. Schmitt & S. Glenac.
34 sites (Reunion Island) 15 sites (Mauritius)
Orthops palus (Hemiptera: Heteroptera: Miridae) was first described in 1947 in Uganda by Taylor. Up to now, except its country of origin, this species was only recorded in Sudan and
Reunion Island. In this island, O. palus attacks mango (Mangifera indicae L.) flowers and is considered as a major pest. However, little knowledge is available on this species, making
its population management difficult. Our study aims to acquire knowledge on the bioecology of this insect and on its population genetic structure.
Egg Instar 1 Instar 2 Instar 3 Instar 4 Instar 5 Adult
Presence in Indian Ocean Area
Madagascar ? New reporting : Mauritius Comoros Mayotte First results 1,65 d 1,61 d 1,70 d 1,84 d 1,89 d 2,02 d 3,01 d 3,18 d References cited:
Cohen (2000). Journal of Entomogical Science
Feng et al. (2012). Biological and Microbial Control Portilla et al. (2011). Journal of Insect Science
Taylor (1947) Bulletin of Entomological Research
Mango Rose pepper ? ? ? ? ? ?
