Control of grape berry moth with biological preparations in comparison with insect growth regulators and organo phosphates [Vitis vinifera L. - Piedmont]
1998
Morando, A. | Lembo, S. | Marenco, G.L. | Cerrato, M. | Morando, P. | Bevione, D.
Английский. Over a biannual period (1996-97) in Monferrato (Asti) area, Piedmont, efficacy trials against grape berry moths (Lobesia botrana 85%, Eupoecilia ambiguella 15%) were carried out on a Chardonnay cv. vineyard, Casarsa growing type shape, wich, due to high level of the shadowing in the cluster zone on the vine, it is more damaged by berry moths if compared to the traditional growing method - Guyot counter fruit tree pruned. In presence of a substantial grape berry moth attack (2-3 holed berries/cluster with 74% injured clusters on check plots), all tested insecticides (many Bacillus thuringiensis preparations, chlorpyriphos ethyl, chlorpyriphos ethyl microencapsulated, ethofenprox, fenitrothion, pyrrole, pyridaphenthion, tebufenozide) provided a significative good efficacy, without clear differences among them, confirming that grape berry moths control is not difficult, if adequate timing and methods are used
Показать больше [+] Меньше [-]итальянский. Nel biennio 1996-97, in Piemonte, nel Monferrato astigiano, sono state condotte prove di lotta contro le tignole della vite (Lobesia botrana 85%, Eupoecilia ambiguella 15% circa) in un vigneto di Chardonnay allevato a Casarsa e, per questa condizione di elevato ombreggiamento della zona fruttifera, piu' colpito dalle tignole rispetto ai tradizionali vigneti allevati a controspalliera con potatura Guyot. In presenza di attacchi ragguardevoli (2-3 acini bucati per grappolo con il 74% di grappoli colpiti sul test), tutti gli insetticidi sperimentati (diversi preparati a base di delta endotossina da Bacillus thuringiensis, chlorpyriphos ethyl, chlorpyriphos ethyl microencapsulated, ethofenprox, fenitrothion, pirrolo, pyridaphenthion, tebufenozide) hanno assicurato una protezione significativa, senza evidenziare differenze importanti tra loro, confermando che la lotta contro questi parassiti non e' difficile, se si interviene in tempi e modi adeguati
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