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Peronospora della patata e del pomodoro

Phytophthora infestans

Su patata
Particolare di infezione su fogliaNelle zone a clima temperato i primi sintomi di peronospora possono comparire già a partire dai primi giorni di maggio. Gli attacchi primari hanno principalmente luogo su piante isolate sulle quali sono visibili imbrunimenti su porzioni dello stelo o dei piccioli, accompagnati da macchie irregolari, a margine sfumato, sulle foglie. Queste macchie, dapprima decolorate, imbruniscono e, in condizioni di alta umidità relativa, si ricoprono lungo i margini di una muffetta biancastra, visibile nella pagina inferiore della foglia. Se le condizioni climatiche sono caratterizzate da temperature elevate e alta umidità atmosferica, i sintomi si aggravano e la malattia si diffonde molto rapidamente. L'accumularsi delle lesioni può portare l'intera pianta alla morte nel giro di pochi giorni dall'osservazione delle prime macchie.

Tubero di patata colpito da peronosporaSui tuberi le infezioni prendono avvio da rotture del tubero o dalle lenticelle e danno luogo a tacche depresse, di colorazione rosso-porpora, in corrispondenza delle quali i tessuti assumono una consistenza spugnosa o, come accade più spesso, marciscono per il successivo insediamento di altri funghi e batteri (principalmente Fusarium spp. Erwinia spp.).

Su pomodoro
Sulle foglie la malattia provoca macchie irregolari, prima traslucide poi brune, a rapido accrescimento; su fusti e peduncoli fogliari si formano tacche necrotiche in corrispondenza delle quali i tessuti perdono turgore e tendono a ripiegarsi.
Le bacche contraggono le infezioni quando sono ancora verdi: inizialmente si formano macchie traslucide che assumono poi una colorazione verde-oliva o bruna e si estendono a larghe porzioni della bacca, arrestandone lo sviluppo.

pesticides
Acrobat MZ WG
intensity: g_not_available_label
Acrobat R 3B
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Acrobat R BLU
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Acrobat TOP
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Aktor Triplo BLU
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Alef
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Alial Double
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Alial Ramato
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Alial Triple WP
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Aliette
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Antracol
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Antracol 70 WG
intensity: g_not_available_label
Arpel Duo
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Arpel Triplo BLU
intensity: g_not_available_label
Aspor WDG
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Assoram 2000
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Auriga
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Aviator SC
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Aviso DF
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Axidor
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Azbany
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Banjo
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Bater R WG
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Blend
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Blendor
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Blue Shield HI BIO
intensity: g_not_available_label
Cabrio Duo
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Cabrio TOP
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Captano Arysta 80 WG
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Cerexil M DG
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Champ 20 DF
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Champ DP
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Champion Class
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Champion Flo
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Cimoram
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Cimoram BLU
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Cimoram Ultra WG
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Cimox 25 WP
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Cimozeb
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Consento
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Coppercim WG
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Coprantol Duo
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Coprantol Hi Bio 2.0
intensity: g_not_available_label
Coprantol WG
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Copren HI BIO
intensity: g_not_available_label
Corner MZ WG
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Crittox GD 75
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Cuagro HI BIO
intensity: g_not_available_label
Cuman Combi
intensity: g_not_available_label
Cupravit BIO Evolution
intensity: g_not_available_label
Cuprital S.D.I.
intensity: g_not_available_label
Cuprofix 30 Disperss
intensity: g_not_available_label
Cuprofix 30 Disperss BLU
intensity: g_not_available_label
Cuprofix C Disperss
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Cuprofix MR 19 Disperss
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Cuprofix ULTRA Disperss
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Cuproscam MZ
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Cuproscam MZ Bleu
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Cuprotek Disperss
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Cuproxat Forte
intensity: g_not_available_label
Cuproxat Liquido
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Cuproxat S.D.I.
intensity: g_not_available_label
Curame 4-40
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Curzate
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Curzate 60 WG
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Curzate M
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Curzate M White
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Curzate M68 WG
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Curzate System
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Curzeb 4-40 PB
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Curzeb WG
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Cymbal
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Cymbal 20
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Cymbal 35 WG
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Cymco 72 WP
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Cymone 25 WP
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Cymopur 35 WG
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Cymopur 45 WG
intensity: g_not_available_label
Cymoxan R Blu
intensity: g_not_available_label
Cyprus 25 DF
intensity: g_not_available_label
Cyprus Plus
intensity: g_not_available_label
Danso 45
intensity: g_not_available_label
Defense 80 WP
intensity: g_not_available_label
Delan 70 WG
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Dimix
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Dithane DG Neotec
intensity: g_not_available_label
Dithane M-45 WP
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Drum
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Ekoram 2000
intensity: g_not_available_label
Emendo M
intensity: g_not_available_label
Enervin Duo
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Enervin TOP
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Equation Contact
intensity: g_not_available_label
Equation Pro
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Eucrit R
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Faltex Flow
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Feudo MZ WDG
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Feudo RD WP
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Flare Gold MZ Pepite
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Flare Gold R
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Flare Gold R WG
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Folio Gold 537,5 SC
intensity: g_not_available_label
Folmak WDG
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Folpan 80 WDG
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Folpan SC
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Folvit 80 WDG
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Forum R
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Forum R 3B
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Forum R 3B Flow
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Forum R WG
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Forum TOP
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Frowncide
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Fungi MZ
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Fungi MZ DF
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Fungiman Combi
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Fungizeb 80 WP
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Galatas Plus
intensity: g_not_available_label
Galben M 8-65
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Galben M 8 65 BLU
intensity: g_not_available_label
Galben R 4-33
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Galben R 4-33 BLU
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Garavel
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Garbo SC
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Gass
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Gett
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Idrox 20
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Indofil MZ 3 WP
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Java M
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Karitsu
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Kauritil C
intensity: g_not_available_label
Keeper Triplo NC
intensity: g_not_available_label
Krug
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Kuprik FLO
intensity: g_not_available_label
LAN 70 WG
intensity: g_not_available_label
Lectra MZ WG
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Leram HI BIO
intensity: g_not_available_label
Lygera
intensity: g_not_available_label
M70 DF
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Malvin 80 WG
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Mancocim 4-40
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Mancosim 75 DF
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Mancozeb Plus 75 WG
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Mancozeb Plus 80 WP
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Manfil 75 WG
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Manfil 80 WP
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Mangavis D.G.
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Mantir GO
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Maximan 4-40
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Maximan 80 WP
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Maximan DG
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Melody Compact
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Melody Compact Easy
intensity: g_not_available_label
Melody Compact WG
intensity: g_not_available_label
Metaman 8-64 WG
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Mexil Oro MZ
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Mexil Oro MZ WG
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Mexil Oro R WG
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Mexiram HI BIO
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Mexiram TRI HI BIO
intensity: g_not_available_label
Micospor MGD
intensity: g_not_available_label
Micozeb 45
intensity: g_not_available_label
Micozeb 75 WDG
intensity: g_not_available_label
Micozeb 80 WP
intensity: g_not_available_label
Mirador SC
intensity: g_not_available_label
Moller HI BIO
intensity: g_not_available_label
Moximate 505 WG
intensity: g_not_available_label
Moximate M
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Moxyl 20 WP
intensity: g_not_available_label
Nando 500 SC
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Nando Maxi
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Nautile DG
intensity: g_not_available_label
Naxos 500 SC
intensity: g_not_available_label
Nospor 80 S
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Optix R Disperss
intensity: g_not_available_label
Orovit Triplo
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Orthocide 80 WG
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Ortiva
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Ortiva TOP
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Ortiva TOP SC
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Oxford
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PAM
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Pennconil
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Penncozeb DG
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Pergado R
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Pergado SC
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Pikar
intensity: g_not_available_label
Pitstop
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Planet C
intensity: g_not_available_label
Poltiglia Bordolese Disperss
intensity: g_not_available_label
Poltiglia Bordolese Disperss BLU
intensity: g_not_available_label
Poltiglia Disperss
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Polvere Bordolese STI
intensity: g_not_available_label
Polvere Tipo Bordolese
intensity: g_not_available_label
Polyram DF
intensity: g_not_available_label
Prevint Duo
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Prevint TOP
intensity: g_not_available_label
Previter
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Promag
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Proplant
intensity: g_not_available_label
Proram HI BIO
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Proxan SL
intensity: g_not_available_label
Proxanil Bianco
intensity: g_not_available_label
Proxanil SC
intensity: g_not_available_label
Quantum F
intensity: g_not_available_label
Quantum MZ
intensity: g_not_available_label
Quantum MZ WDG
intensity: g_not_available_label
Quantum R
intensity: g_not_available_label
Quantum R-OK
intensity: g_not_available_label
Quasar 6/24 R
intensity: g_not_available_label
Quasar MZ WG
intensity: g_not_available_label
Quiver-Top
intensity: g_not_available_label
R6 Erresei Bordeaux WG
intensity: g_not_available_label
R6 Erresei SB-R42 WG
intensity: g_not_available_label
Rabor 6
intensity: g_not_available_label
Raider HI BIO
intensity: g_not_available_label
Ranman
intensity: g_not_available_label
Ranman TOP
intensity: g_not_available_label
Revus Top
intensity: g_not_available_label
Ridomil Gold MZ Pepite
intensity: g_not_available_label
Ridomil Gold R WG
intensity: g_not_available_label
Ridomil Gold SL
intensity: g_not_available_label
Riviera
intensity: g_not_available_label
Riviera MZ
intensity: g_not_available_label
Riviera R
intensity: g_not_available_label
Selecta Disperss
intensity: g_not_available_label
Sestante
intensity: g_not_available_label
Silbot 500 SC
intensity: g_not_available_label
Silbot F
intensity: g_not_available_label
Silbot MZ 60
intensity: g_not_available_label
Silbot R
intensity: g_not_available_label
Simplia
intensity: g_not_available_label
Sirdate R
intensity: g_not_available_label
Skine 500 SC
intensity: g_not_available_label
Slogan R
intensity: g_not_available_label
Slogan TOP
intensity: g_not_available_label
Soleil 50 WG
intensity: g_not_available_label
Stealth CU
intensity: g_not_available_label
Stealth MZ
intensity: g_not_available_label
Syllit Flo
intensity: g_not_available_label
Tairel M 8-65
intensity: g_not_available_label
Tairel M 8-65 BLU
intensity: g_not_available_label
Tairel R 4-33 BLU
intensity: g_not_available_label
Temide 50 WG
intensity: g_not_available_label
Temide MZ
intensity: g_not_available_label
Terminus SC
intensity: g_not_available_label
Tetraram
intensity: g_not_available_label
Tizca
intensity: g_not_available_label
TRI-BASE
intensity: g_not_available_label
Tribase Twin
intensity: g_not_available_label
Trimangol 80
intensity: g_not_available_label
Trimanoc 80 WP
intensity: g_not_available_label
Tucana TOP
intensity: g_not_available_label
Valbon
intensity: g_not_available_label
Valis M
intensity: g_not_available_label
Vanto
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Vendetta
intensity: g_not_available_label
Verdram HI BIO
intensity: g_not_available_label
Vincare
intensity: g_not_available_label
Vintage C Disperss
intensity: g_not_available_label
Vitasan 4-40 WP
intensity: g_not_available_label
Vitasan 80 WP
intensity: g_not_available_label
Vitasan WG
intensity: g_not_available_label
Vite FOL
intensity: g_not_available_label
Vitene R WG
intensity: g_not_available_label
Vitil 8-64 WG
intensity: g_not_available_label
Vitisan 45 WG
intensity: g_not_available_label
Volare
intensity: g_not_available_label
Volare Orto
intensity: g_not_available_label
Vondozeb DG
intensity: g_not_available_label
Welter MZ WG
intensity: g_not_available_label
Winby
intensity: g_not_available_label
Zetaram HI TECH
intensity: g_not_available_label
Zignal
intensity: g_not_available_label