Observations were carried out in an organic vineyard (cv malvasia di candia), at salemi (sicily), during 2006-2007, in order to verify the influence of grapevine moth lobesia botrana (den. & schif.) on presence of ochratoxin a (ota) in bunches at harvest time. a percentage of 12.98% of bunches were attacked by grape moth during 2006, while 8.65% of them were infected by grey mould and sour bunch rot (5.77% and 2.88% respectivelly). analyses carried out on 12.98% infested bunches, showed a level of 20 μg/kg of ota, while on intact samples 0.04 μg/kg of toxin was registered. During 2007, infestation of bunches by grape moth was very low (2.05%), due to the particular climatic conditions, and no infections by grey mould and sour bunch rot were registered at harvest time. analyses on 2.05% infested bunches by l. botrana showed a presence of 0.055 μg/kg of ota, while no detectable presence of toxin was registered on intact bunches (<0.014 μg/kg). two aspergillus species were recorded in 2007: the most representative was aspergillus fumaricus wehm (86%) which is not considered the producer of ota, while 14% was aspergillus fonsecaeus (thom & raper) considered as the probably producer of the toxin.
TSOLAKIS, H., CORONA, O., PULIZZI, A.S., GRIPPI, F., MONDELLO, V. (2008). Incidence of grapevine moth Lobesia botrana (Den. & Schif.) on occurrence of ochratoxin A in grapes. In Integrated Protection in Viticulture, IOBC/WPRS Bulletin (pp.363-368). Lozzia, G.C.; Lucchi, A.; Ragusa, S.; Tsolakis, H..
Incidence of grapevine moth Lobesia botrana (Den. & Schif.) on occurrence of ochratoxin A in grapes
TSOLAKIS, Haralabos;CORONA, Onofrio;MONDELLO, Vincenzo
2008-01-01
Abstract
Observations were carried out in an organic vineyard (cv malvasia di candia), at salemi (sicily), during 2006-2007, in order to verify the influence of grapevine moth lobesia botrana (den. & schif.) on presence of ochratoxin a (ota) in bunches at harvest time. a percentage of 12.98% of bunches were attacked by grape moth during 2006, while 8.65% of them were infected by grey mould and sour bunch rot (5.77% and 2.88% respectivelly). analyses carried out on 12.98% infested bunches, showed a level of 20 μg/kg of ota, while on intact samples 0.04 μg/kg of toxin was registered. During 2007, infestation of bunches by grape moth was very low (2.05%), due to the particular climatic conditions, and no infections by grey mould and sour bunch rot were registered at harvest time. analyses on 2.05% infested bunches by l. botrana showed a presence of 0.055 μg/kg of ota, while no detectable presence of toxin was registered on intact bunches (<0.014 μg/kg). two aspergillus species were recorded in 2007: the most representative was aspergillus fumaricus wehm (86%) which is not considered the producer of ota, while 14% was aspergillus fonsecaeus (thom & raper) considered as the probably producer of the toxin.File | Dimensione | Formato | |
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