THE nature of the infective principle in plants suffering from mosaic disease is obscure, although most recent workers favour the view that it is a living organism. Allard and Duggar have ...

When you're growing your tomato plants during the summer, you might notice some with curling leaves. Here's why that happens and how to stop it.

Many pests and diseases plague tomatoes, such as hornworms and tomato mosaic virus, but this physiological disorder seems to be something else entirely. So what causes it, how can it be prevented ...