The fruit flies (Diptera: Tephritidae) are among the most destructive agricultural pests in the world. In this study, field experiments have been carried out in order to evaluate the activity of natural compounds (previously selected with olfactometry assays) towards Bactrocera oleae (Rossi), the olive fruit fly. In particular, repulsive efficacy against B. oleae of isopropyl-myristate and plant-derived smoke waters have been assessed in different pedoclimatic conditions, in South and Central Italy. The effectiveness of treatments has been measured considering the level of drupe infestation and adults’ catches in chemio-chromotropic traps, using agricultural kaolin clay as positive control. Isopropyl-myristate showed highest activity compared with control and other treatments. The attractiveness of pheromones to the thistle fly Terellia fuscicornis (Loew) has also been tested. For this purpose, extracted male pheromones have been tested using sticky traps, randomly disposed in a thistles field. Traps of 2 different colours have been used due to their strong and poor attractiveness (purple and white respectively) and data have been collected by counting catches for both sexes. The pheromone was found to be attractive with a significant difference between the sexes. The results obtained encourage further studies for both species in order to find new promising IPM strategies against Italian Tephritids.
New promising control perspectives against Italian Tephritids / Jesu, Giovanni; Laudonia, Stefania; Giacinto Germinara, Salvatore; Bonanomi, Giuliano; Vinale, Francesco. - (2019). (Intervento presentato al convegno European PhD Network "Insect Science" - X Annual Meeting tenutosi a Genova nel 4-6/12/2019).
New promising control perspectives against Italian Tephritids
Giovanni Jesu
;Stefania Laudonia;Giuliano Bonanomi;Francesco Vinale
2019
Abstract
The fruit flies (Diptera: Tephritidae) are among the most destructive agricultural pests in the world. In this study, field experiments have been carried out in order to evaluate the activity of natural compounds (previously selected with olfactometry assays) towards Bactrocera oleae (Rossi), the olive fruit fly. In particular, repulsive efficacy against B. oleae of isopropyl-myristate and plant-derived smoke waters have been assessed in different pedoclimatic conditions, in South and Central Italy. The effectiveness of treatments has been measured considering the level of drupe infestation and adults’ catches in chemio-chromotropic traps, using agricultural kaolin clay as positive control. Isopropyl-myristate showed highest activity compared with control and other treatments. The attractiveness of pheromones to the thistle fly Terellia fuscicornis (Loew) has also been tested. For this purpose, extracted male pheromones have been tested using sticky traps, randomly disposed in a thistles field. Traps of 2 different colours have been used due to their strong and poor attractiveness (purple and white respectively) and data have been collected by counting catches for both sexes. The pheromone was found to be attractive with a significant difference between the sexes. The results obtained encourage further studies for both species in order to find new promising IPM strategies against Italian Tephritids.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
