Vit.En. - LOTTA ALLE TIGNOLE DELLA VITE IN PIEMONTE

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Vit.En. - LOTTA ALLE TIGNOLE DELLA VITE IN PIEMONTE

Ricerca

Agrofarmaci

Macchine Viticole

Materiali impianto

Enologia

Varie

LOTTA ALLE TIGNOLE DELLA VITE IN PIEMONTE

TAG: Acari e Insetti, Tignola, Difesa, Insetticidi, Tignoletta

‹ Tutti gli articoli di Viticoltura

di Giulio Moiraghi, Albino Morando, Fabio Sozzani, Sergio Lembo RIASSUNTO

Nel quadriennio 2000-2003 sono state condotte prove di lotta contro le tignole della vite (Lobesia botrana ed Eupoecilia ambiguella) con diversi prodotti commerciali. L’infestazione è risultata notevole nel primo anno di prova (279 acini bucati/100grappoli con una diffusione prossima al 92%), quasi nulla nel 2001, consistente nel 2002 (224 acini bucati/100grappoli con diffusione dell’81%) e bassa nel 2003 con 152 acini bucati/100grappoli dei quali il 61% risultava colpito. Tutti i prodotti impiegati hanno contenuto il fitofago in modo significativo, ma con risultati diversi. I migliori sono stati ottenuti da alfametrina, clorpirifos etile e metile, flufenoxuron, fenitrotion, indoxacarb, malation, paration metile. La protezione è apparsa inferiore per azadiractina, e meno costante per etofenprox e Bacillus thuringiensis.
Parole chiave: vite, Lobesia botrana, Eupoecilia ambiguella, insetticidi, lotta

SUMMARY
TRIALS OF GRAPE BERRY MOTH CONTROL

In the quadriennium 2000-2003 trials of grape berry moth control (Lobesia botrana and Eupoecilia ambiguella) were carried out with several commercial products. In the first year of trial the infestation was considerable (279 stricken grapes/l00 bunches with a diffusion near 92%), in 2001 very low, in 2002 high (224 stricken grapes/l00 bunches, 81% diffusion) and in 2003 medium to low with 152 stricken grapes/100 bunches, 61% diffusion. All the used insecticides controlled significantly grape berry moths, but with different results. The best ones were obtained by alfamethrin, clorpyriphos ethyl and methyl, flufenoxuron, fenitrothion, indoxacarb, malathion, parathion methyl. Control was lower for azadirachtin, and less constant for etofenprox and Bacillus thuringiensis.
Key words: grapevine, Lobesia botrana, Eupoecilia ambiguella, insecticides, control

Allegati:

LOTTA ALLE TIGNOLE DELLA VITE IN PIEMONTE