The word RESISTANCE is used to define the ability of a plant variety to restrict the activity of a plant pathogen or insect and restrict the symptoms of a disease compared to a susceptible plant variety.

The word TOLERANCE is used to define the ability of a plant to endure or recover from the damage caused by such pests and pathogen caused symptoms.

GUIDE TO DISEASES: BSK - Bacterial Speck (Pseudomonas syringae pv. tomato); ASC - Alternaria Stem Canker (Alternaria alternata f sp. lycopersici, races 1, 2, &3); F - Fusarium wilt (Fusarium oxysporum f sp. lycopersici, races 1, 2 & 3); St - Grey leaf spot (Stemphylium solani); V - Verticilium wilt (Verticilium dahliae, race 1); ToMV – Tomato Mosaic Virus (Strains: 0,1 & 2); TYLCV - Tomato Yellow Leaf Curl Virus; TSWV – Tomato Spotted Wilt Virus; N – Southern root-knot Nematode (Meloidogyne incognita, M. arenaria, M. javanica, race 1).