Agrobase Italy
Mal bianco della vite (Oidio della vite)
Uncinula necator (Erysiphe necator)

È un fungo fitopatogeno della famiglia Erysiphaceae agente eziologico dell'Oidio o Mal bianco della vite.

L'oidio si manifesta con macchie pulverulente grigio-biancastre che ricoprono gli organi verdi della pianta, con una graduale decolorazione della foglia, che prima ingiallisce e successivamente si secca, a volte il fungo colpisce solo il centro della foglia. L'umidità sommata al caldo e alla scarsa aerazione contribuisce all'insorgere dell'oidio, che si manifesta in una fascia che va dagli 8° fino ai 30°, questo favorisce il fungo specialmente in autunno e primavera.L'oidio ha una vasta "scelta" di piante ospiti, che vanno dalle specie erbacee a quelle arboree come gli alberi da frutto.

L’oidio può infettare tutti gli organi verdi della vite causando i danni maggiori sulle infiorescenze, sui grappoli e sui singoli acini. Le alterazioni a carico di tali organi possono essere dirette e indirette. I primi sintomi visibili sulle foglie consistono in piccole macchie giallastre traslucide che, col tempo, possono interessare totalmente o in parte la superficie fogliare, impedendone lo sviluppo e causando increspature e tacche necrotiche brunastre; in corrispondenza dei sintomi la foglia viene ricoperta dal caratteristico micelio fungino di colore bianco-grigiastro. È da considerare che spesso le foglie colonizzate cadono precocemente mentre i piccioli tendono a spezzarsi. I germogli possono essere interessati fino dai primi momenti del loro sviluppo in seguito alla crescita del micelio latente svernante nelle gemme; il micelio può ricoprire totalmente il germoglio che assume una colorazione biancastra con il lembo fogliare ripiegato verso l’alto e viene detto “bandiera”. Infezioni del tralcio danno luogo a micelio a sviluppo limitato che con il passare del tempo e la lignificazione dei tralci diventa brunastro e bruno-rossatro con reticolature nerastre. I tralci infettati dal patogeno, tendono a crescere in modo irregolare oltre a lignificare male, di conseguenza sono, generalmente, più suscettibili al freddo invernale.

Effective on
Altair 20 EW
Efficiency: ★★★
Altair 4,5 EW
Efficiency: ★★★
Altair LSC
Efficiency: ★★★
Arius
Efficiency: ★★★
Arius System
Efficiency: ★★★
Arius System Plus
Efficiency: ★★★
Barkan
Efficiency: ★★★
Duokar 20 EW
Efficiency: ★★★
Duokar 4,5 EW Pro
Efficiency: ★★★
Indar 5 EW
Efficiency: ★★★
Inox
Efficiency: ★★★
Karathane Star
Efficiency: ★★★
Korthane M
Efficiency: ★★★
Myclos 20 EW
Efficiency: ★★★
Simitar 5 EW
Efficiency: ★★★
Slash
Efficiency: ★★★
Systhane 20 EW
Efficiency: ★★★
Systhane 4,5 Plus
Efficiency: ★★★
Systhane LS
Efficiency: ★★★
Thiocur 20 EW
Efficiency: ★★★
Thiocur Forte
Efficiency: ★★★
Thiocur LSC
Efficiency: ★★★
Warthane
Efficiency: ★★★
Accord
Efficiency: not_available
Actum
Efficiency: not_available
Ares 25 WG
Efficiency: not_available
Ares 250 EW
Efficiency: not_available
Ares 430 SC
Efficiency: not_available
Ares 5 SC
Efficiency: not_available
Arius Combi
Efficiency: not_available
Atemi 10 Pepite
Efficiency: not_available
BAS 510 01 F
Efficiency: not_available
Batam
Efficiency: not_available
Bogard
Efficiency: not_available
Boneco
Efficiency: not_available
Burt
Efficiency: not_available
Cabrio Star
Efficiency: not_available
Cabrio TOP
Efficiency: not_available
Caddy
Efficiency: not_available
Cantus
Efficiency: not_available
Cidely
Efficiency: not_available
Cipplan
Efficiency: not_available
Cipren 10 WG
Efficiency: not_available
Collis
Efficiency: not_available
Dedalus 25 WDG
Efficiency: not_available
Dedalus WDG
Efficiency: not_available
Denote
Efficiency: not_available
Dipylon 20 LE
Efficiency: not_available
Duokar LSC
Efficiency: not_available
Dynali
Efficiency: not_available
Faltex Flow
Efficiency: not_available
Felix
Efficiency: not_available
Filan WG
Efficiency: not_available
Flexity
Efficiency: not_available
Flint
Efficiency: not_available
Flint Easy
Efficiency: not_available
Flint Max
Efficiency: not_available
Flint Orto
Efficiency: not_available
Folicur 250 EW
Efficiency: not_available
Folicur Combi WG
Efficiency: not_available
Folicur WG
Efficiency: not_available
Follet 80 WG
Efficiency: not_available
Follow 80 WG
Efficiency: not_available
Folmak WDG
Efficiency: not_available
Folpan 80 WDG
Efficiency: not_available
Folpan SC
Efficiency: not_available
Folvit 80 WDG
Efficiency: not_available
Folwin
Efficiency: not_available
Forum Star
Efficiency: not_available
Forum Team
Efficiency: not_available
Full 80 WG
Efficiency: not_available
Fungiben
Efficiency: not_available
Fungiben Combi
Efficiency: not_available
Ganzo
Efficiency: not_available
GAT Tessla 25 WG
Efficiency: not_available
Gremmy
Efficiency: not_available
Grip 25
Efficiency: not_available
Grocer
Efficiency: not_available
Grocer Tech SC
Efficiency: not_available
Gunner SC
Efficiency: not_available
Gunner WG
Efficiency: not_available
Hang
Efficiency: not_available
Horizon
Efficiency: not_available
Icarus EW
Efficiency: not_available
Instant
Efficiency: not_available
Keeton 25 WG
Efficiency: not_available
Keeton Combi
Efficiency: not_available
Korbas
Efficiency: not_available
Koring 25 WG
Efficiency: not_available
Koring 430 SC
Efficiency: not_available
Koring Combi
Efficiency: not_available
Kumulus DF
Efficiency: not_available
Kumulus Tecno
Efficiency: not_available
Kusabi
Efficiency: not_available
Lizocin
Efficiency: not_available
Lynx
Efficiency: not_available
Massocur 12-E
Efficiency: not_available
Matador
Efficiency: not_available
Medal 25
Efficiency: not_available
Mibutil 12 EC
Efficiency: not_available
Miclo-Green
Efficiency: not_available
Miclochem
Efficiency: not_available
Miclocur
Efficiency: not_available
Miclos TOP
Efficiency: not_available
Miclosh Progress
Efficiency: not_available
Miclosym EC
Efficiency: not_available
Miclosym Progress
Efficiency: not_available
Micloter
Efficiency: not_available
Miclotop EC
Efficiency: not_available
Miclotop Progress
Efficiency: not_available
Microsulf 90
Efficiency: not_available
Misha 20 EW
Efficiency: not_available
Mosaiko
Efficiency: not_available
Mosaiko Combi
Efficiency: not_available
Myclofil
Efficiency: not_available
Myclofil SC
Efficiency: not_available
Myclos
Efficiency: not_available
Mystic 25 WG
Efficiency: not_available
Mystic 250 EW
Efficiency: not_available
Mystic 430 SC
Efficiency: not_available
Mystic
Efficiency: not_available
Mystic Class
Efficiency: not_available
Mystic Combi WG
Efficiency: not_available
Mystic Plus S
Efficiency: not_available
Nexol 200 EW
Efficiency: not_available
Nimo 250
Efficiency: not_available
Nimrod 250 EW
Efficiency: not_available
Nimrod
Efficiency: not_available
Omnex 10 EC
Efficiency: not_available
Omnex 200 EW
Efficiency: not_available
Omnex Combi
Efficiency: not_available
Opinion Ecna
Efficiency: not_available
Ortiva
Efficiency: not_available
Pencor Combi
Efficiency: not_available
Persyng
Efficiency: not_available
Pindarus 25 WDG
Efficiency: not_available
Player 25 WG
Efficiency: not_available
Player 250 SC
Efficiency: not_available
Player 5 SC
Efficiency: not_available
Player Combi SC
Efficiency: not_available
Polanko 4,2 EC
Efficiency: not_available
Potenza DF
Efficiency: not_available
Potenza PLUS DF
Efficiency: not_available
Power PLUS
Efficiency: not_available
Prev-AM
Efficiency: not_available
Prev-AM PLUS
Efficiency: not_available
PRO
Efficiency: not_available
Prosper 300 CS
Efficiency: not_available
Prosper 500 EC
Efficiency: not_available
Protil EC
Efficiency: not_available
Quadris
Efficiency: not_available
Quadris WG
Efficiency: not_available
Radar 10 EC
Efficiency: not_available
Riza 20 WG
Efficiency: not_available
Ronzio DF
Efficiency: not_available
Rotate Plus DF
Efficiency: not_available
S Extra
Efficiency: not_available
Score 25 EC
Efficiency: not_available
Sentry
Efficiency: not_available
Ship
Efficiency: not_available
Sparta 200 EC
Efficiency: not_available
Sparta 25 WG
Efficiency: not_available
Sparta Total EW
Efficiency: not_available
Spirostar
Efficiency: not_available
Spirox
Efficiency: not_available
Sponsor
Efficiency: not_available
Sti-Koll 80
Efficiency: not_available
Stroby WG
Efficiency: not_available
Summit Combi
Efficiency: not_available
Support 100 EC
Efficiency: not_available
Systhane S
Efficiency: not_available
Systhane Zolfo
Efficiency: not_available
Taaqat
Efficiency: not_available
Talendo
Efficiency: not_available
Talendo Extra
Efficiency: not_available
Tasis
Efficiency: not_available
TB 20 DG
Efficiency: not_available
TB 25 WG
Efficiency: not_available
TB Flow
Efficiency: not_available
Tebusha NEW
Efficiency: not_available
Tebuzol S Disperss
Efficiency: not_available
Tefi
Efficiency: not_available
Tenax EW
Efficiency: not_available
Tendency 25
Efficiency: not_available
Thiamon Plus
Efficiency: not_available
Thiopron
Efficiency: not_available
Thiovit
Efficiency: not_available
Tioflow 57
Efficiency: not_available
Tiovit Jet
Efficiency: not_available
TOP-GUN
Efficiency: not_available
Topas 10 EC
Efficiency: not_available
Topas 10 WDG
Efficiency: not_available
Topas 200 EW
Efficiency: not_available
Topas Combi Liquido
Efficiency: not_available
Tridan Combi T
Efficiency: not_available
Trinex 250 EW
Efficiency: not_available
Trust SC
Efficiency: not_available
Trust WG
Efficiency: not_available
Tucana 25 EC
Efficiency: not_available
Tucana TOP
Efficiency: not_available
Turner Combi
Efficiency: not_available
Unicorn DF
Efficiency: not_available
Unicorn PLUS DF
Efficiency: not_available
Universalis
Efficiency: not_available
V.I.P. Flow
Efficiency: not_available
V.I.P. WDG
Efficiency: not_available
Veliero 500 EC
Efficiency: not_available
Vertiaro
Efficiency: not_available
Vineto
Efficiency: not_available
Vite FOL
Efficiency: not_available
Vitero 200 EW
Efficiency: not_available
Vivando
Efficiency: not_available
Viver Elite WG
Efficiency: not_available
Zefir 25 WDG
Efficiency: not_available
Zefir WG
Efficiency: not_available
Zolvis 80 Colloidale
Efficiency: not_available