Tomato

Codes for pest organisms in tomato

Scientific name	English name	Code
Viruses
Beet curly top virus	Curly top	BCTV
Cucumber mosaic virus	Cucumber mosaic	CMV
Pepino mosaic virus	Pepino mosaic virus	PepMV
Tobacco mosaic virus	Tobacco mosaic	TMV
Tomato spotted wilt virus	Tomato spotted wilt	TSWV
Tomato mosaic virus	Tomato mosaic	ToMV
Tomato yellow leaf curl virus	Tomato yellow leaf curl	TYLCV
Bacteria
Clavibacter michiganensis subsp. michiganensis	Bacterial canker	Cmm
Pseudomonas corrugata	Pith necrosis	Pc
Pseudomonas syringae pv. tomato	Bacterial speck	Pst
Ralstonia solanacearum	Bacterial wilt	Rs
Xanthomonas vesicatoria (Xanthomonas campestris pv. vesicatoria)	Bacterial spot	Xcv
Fungi
Alternaria alternata f.sp. lycopersici	Alternaria stem canker	Aal
Alternaria solani	Early blight	As
Corynespora cassiicola	Target spot	Cc
Fulvia fulva (ex Cladosporium fulvum)	Leaf mold	Ff (ex Cf)
Fusarium oxysporum f.sp. lycopersici	Fusarium wilt	Fol
Fusarium oxysporum f.sp. radicis-lycopersici	Fusarium crown and root rot	For
Leveillula taurica (anamorph: Oidiopsis sicula)	Powdery mildew	Lt
Oidium neolycopersici (ex Oidium lycopersicum)	Powdery mildew	On (ex Ol)
Phytophthora infestans	Late blight	Pi
Phytophtora parasitica	Buckeye fruit and root rot	Pp
Pyrenochaeta lycopersici	Corky root rot	Pl
Stemphylium botryosum f.sp. lycopersici	Gray leaf spot	Sbl
Stemphylium lycopersici	Gray leaf spot	Sl
Stemphylium solani	Gray leaf spot	Ss
Verticillium albo-atrum	Verticillium wilt	Va
Verticillium dahliae	Verticillium wilt	Vd
Nematode
Meloidogyne arenaria	Root-knot	Ma
Meloidogyne incognita	Root-knot	Mi
Meloidogyne javanica	Root-knot	Mj

HR	highly resistant
IR	intermediate resistant

Schedule 2 - Resistance

1. - Terminology and definitions
   
   1. ‘Immunity’ means not subject to attack or infection by a specified pest or pathogen.
   2. ‘Resistance’ is the ability of a plant variety to restrict the growth and development of a specified pest or pathogen and/or the damage they cause when compared to susceptible plant varieties under similar environmental conditions and pest or pathogen pressure. Resistant varieties may exhibit some disease symptoms or damage under heavy pest of pathogen pressure.
      Two levels of resistance are defined:
      
      1. High resistance (HR): plant varieties that highly restrict the growth and development of the
         specified pest or pathogen under normal pest or pathogen pressure when compared to susceptible
         varieties. These plant varieties may, however, exhibit some symptoms or damage under heavy pest
         or pathogen pressure.
      2. Intermediate resistance (IR): plant varieties that restrict the growth and development of the specified pest or pathogen, but may exhibit a greater range of symptoms or damage compared to highly resistant varieties. Intermediately resistant plant varieties will still show less severe symptoms or damage than susceptible plant varieties when grown under similar environmental conditions and/or pest or pathogen pressure.
   3. ‘Susceptibility’ is the inability of a plant variety to restrict the growth and development of a specified pest or pathogen.
      
2. - Information per variety
   Resistances in varieties of our crops will be coded (see coding list at www.enzazaden.com ), unless indicated otherwise. In case a variety is resistant to more than one pathogen, the individual resistance codes will be separated by the symbol ‘/ ‘.
   
   If in a resistance code of a certain variety reference is made to certain strains for which the resistance is claimed this means that no resistance is claimed to other strains of the same pathogen.
   
   If, in a resistance code, no reference is made to strains of the pathogen for which the resistance is claimed, resistance is claimed only to certain not further specified strains of the pathogen and we hereby disclaim any guarantee that the variety will not be infected by the said pathogen.