Effectivess of some insecticides for the control of second generations of Lobesia botrana Schiff [Vitis vinifera L. - Emilia-Romagna]
2000
Boselli, M. | Bellettini, L. (Regione Emilia Romagna, Bologna (Italy). Servizio Fitosanitario) | Scannavini, M. (Centro di Assistenza Tecnica in Enologia e Viticoltura (CATEV), Faenza (Italy))
In 1998-1999, two trials evaluating new insecticides for the control of the second generation of Lobesia botrana were carried out on grapevine (cv. "Trebbiano romagnolo") and growing systems (Casarsa and GDC). In the trials, new insecticides (spinosad, methoxifenozide, indoxacarb and chlorpyrifos wg) were compared with others (tebufenozide, flufenoxuron and lufenuron) included in the Emilia-Romagna guidelines for integrated production. Besides, some Bt-based products (Agree, BTK 32, BIT0001, Co- Star) were also evaluated. Trial in 1998 showed that all the chemicals significantly reduced the damages. Indoxacarb showed the best efficacy (96.7%) followed by flufenoxuron (91.2%), lufenuron (89.6%) and tebufenozide (77.1%). Two applications with microbiological products gave similar results (80.8% for Agree and 79.2% for BIT0001). In 1999 also, all the chemicals showed a good pest control. Methoxifenozide proved to be the most effective (99.9%) followed by flufenoxuron (99.4%), indoxacarb (97.3%), tebufenozide (89.6%), spinosad (90.8%), chlorpyrifos (82.8%) and lufenuron (82.6). As in 1999, two applications with microbiological products gave interesting results (98.8% for BTK 32 and 97.9% for Co -Star)
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