PROVE DI LOTTA A CERATITIS CAPITATA CON IL METODO "ATTRACT AND KILL" IN ARANCETI A MATURAZIONE PRECOCE

Virgilio Caleca, Manuela Palumbo Piccionello

Research output: Contribution to conferenceOther

Abstract

[automatically translated] The fight against the Mediterranean fruit fly, Ceratitis capitata (Wiedemann), in organic orchards is considered so problematic that the Reg. 889/08 admits, only to escape the attacks of this Diptera tefritide, degreening citrus with ethylene and l ' use of two pyrethroid, deltamethrin and lambda-cyhalothrin, only in traps, in this case also allowed for the fight to Bactrocera oleae (Rossi). In the years 2009 and 2010, in an organic orange grove early maturing (cv Navelina) site in the territory of Sciacca (AG), are evidence of a struggle carried out on C. capitata, using experimental devices AGRISENSE called Magnet Med company. The device is made of a white bag containing attractants for fly, ammonium acetate and trimethylamine hydrochloride, while the outer surface of the bag is impregnated with deltamethrin which acts as adulticide. For studies in the orange fighting two contiguous parcels demarcated by ca. 1 has, by placing the devices in one and leaving the other as untreated control; the following year the parcels were reversed. At the beginning of September in order to monitor the flights of the males of C. capitata two traps were placed in Trimedlure in each parcel. 30 September 2009 and 28 wk. 2010 in the parcel treated were placed 50 devices Magnet Med per hectare on the inside (one every 12.5 trees), while at its edges was placed a device every four trees. To measure the different levels of attack every year are made on two samplings hanging fruits, all ' early veraison (30 October '09, 29 October '10) and the commercial maturity (12 November '09, 9 November '10); at each sampling time they were examined with the naked eye 40 oranges in each of 30 trees selected in the inner part of the lot. Catches of males in traps Trimedlure in the period 1 October to 10 November in both years were on average 20 per week and have revealed no statistically significant differences between the two parcels, except for the last week in 2009 when the parcel untreated showed a significantly higher number of catches. Despite the low level of apparent bites C. capitata recorded on the fruits in the two years, the parcels with Magnet Med devices showed a level of attack (average: 0.6% in 2009 and 0,
Original languageItalian
Pages210-210
Number of pages1
Publication statusPublished - 2011

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