Migration of oriental fruit moth Grapholita molesta Busk. (Lepidoptera: Tortricidae) under wide area mating disruption in Victoria, Australia | [Migration de la tordeuse orientale Grapholita molesta Busk. (Lepidoptera: Tortricidae) sous confusion sexuelle à grande échelle dans l'Etat de Victoria, Australie]
1999
Il'ichev, A.L. ((Institute of Sustainable Irrigated Agriculture, Tatura (Australie))) | Hossain, M.S. | Jerie, P.H.
Mating disruption is now a corner stone of Integrated Pest Management (IPM) in Australian orchards. Mating disruption has been used for many years to control OFM [oriental fruit moth] in the Goulbum-Murray valley (GMV) region of Victoria, but recently fruit and shoot tip damage increased in peach blocks with mating disruption. Some farmers reported that more damage occurred on the borders of peach blocks near fruit blocks with chemical control. A project initiated to identify factors leading to failure of mating disruption at the edge of blocks and to develop integrated pest management guidelines for OFM. The investigations focused on: (1) OFM population trends and migration(2) fruit and shoot tip damage assessment. The results indicate that OFM can build up the level of population in pear blocks under chemical control and provide a reservoir for infestation of adjacent peach blocks under mating disruption. Fruit damage assessments confirmed higher levels of infestation of OFM in the border of peach blocks next to the pear blocks. The difference between the levels of OFM in adjacent pear and peach blocks was able to indicate migration of OFM from pears to peaches
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