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Disease and insect resistance in tomatoes

Q:  What do the letters VFNT mean on the tomato plant labels?

A:  Tomatoes are prone to a number of diseases and pests. Tomatoes have been hybridized to be resistant to common problems. The following letters represent disease/insect resistance and may appear alone or in a combination:

V = verticillium wilt resistance (fungal disease)
F = fusarium wilt resistance (fungal disease)
N = nematode resistance (insect)
T = tobacco mosaic virus resistance (viral disease)