Because powdery mildew does not significantly affect the health of most plants, treatment is seldom necessary or practical in the home garden. Many gardeners learn to live with the appearance of ...

Aster yellows disease: You may have heard of this bizarre condition, or, like me, perhaps you’ve seen it in your own garden but didn't realize it was a disease. The first time I saw Aster yellows on ...

Viruses spread from honey bees to wild bees through shared flowers, threatening pollination and plant communities.

Plants mobilize their immune defenses far earlier than scientists have believed for decades—and through a previously ...

I have had trouble with watermelon mosaic virus in the past. Is there a way to cure this or at least control the problem? Watermelon mosaic virus is related to other mosaic virus such as tobacco ...

Buying bargain plants at the garden center can be very tempting, but before buying that marked-down plant, it's important to give it a good inspection, according to a UI horticulture educator.

A new review article highlights the evolution and ecology of plant viruses. A team of biologists is now exploring many details of viral dynamics. They describe the subtle interplay between three ...