If you come across a seed labeled VFNT, it simply means that the seed has been bred to resist verticillium wilt, fusarium wilt, nematode, and tobacco mosaic virus. So now that we have an idea of some codes you may come across, let’s look at an example.Multiple letters seen in a tomato disease-resistant variety name means the tomato is resistant to more than one disease. Here is a list of some of the most common disease-resistant tomato variety codes you may find and their meaning:īurpee ‘Mountain Magic’ Hybrid | Red Cocktail & Salad Tomato | Disease Resistant | 12 SeedsĪpart from these codes, other codes such as HR or IR may as well be written next to the codes. HR means High Resistance and IR means Intermediate Resistance. Understanding codes for disease resistant tomatoes Therefore, it’s important to read these abbreviations right so you can know which varieties you are purchasing. These abbreviations or letters mark the disease-resistant variety for that specific tomato breed. When you purchase your disease-resistant tomato seeds varieties, the seed packets or seed labeling often has some abbreviations. However, they aren’t resistant to all types of tomato-related diseases. Disease Resistant TomatoesĮach variety of tomato resistance is mainly resistant to some or most tomato diseases. Therefore, if verticillium wilt or tobacco mosaic virus was once a problem in your garden region in the past years, it is only ideal to choose the tomato variety resistant to this disease. On the other hand, this same tomato variety may end up catching a tomato-related disease from another gardener two states away.

For instance, a particular tomato breed may thrive or flourish in your garden.

Tomato late blight resistance