Lemon trees need pruning to shape, improve airflow, and boost fruit production. Here's when you should do it and how to get it right for a healthy harvest.

Meyer lemon trees can grow indoors or outdoors, but must be protected from frost and brought inside in cold climates. These trees need full sun, regular water, and well-draining soil to grow healthy ...

The bacterial pathogen Xanthomonas citri, which causes canker disease in citrus trees, activates selected parts of the fruit ...

Florida’s citrus industry is experiencing a revival after years of struggling with canker and citrus greening, a pest-borne ...

Photo: Jeffrey B. Jones The dark spots on the leaves and fruit of the lemon tree are typical symptoms of citrus canker, which ...

Pruning citrus trees, such as lemons, limes, grapefruit, tangerines, oranges, and Meyer lemons, ensures they remain strong, healthy, and productive. While these trees require only minimal pruning, an ...

Whiteflies can devastate a garden, but different species are attracted to different plants. Here's what flora you need to ...

A professor emeritus at Washington State University, Chastagner is considered one of the world’s foremost experts on tree and ornamental flower bulb pathologies. In 2018, he received a lifetime ...

If you hate spending money on a Christmas tree just to throw it out a few weeks later, check out this list of Christmas tree houseplants you can grow year-long.

Washington State University's Gary Chastagner is helping researchers around the globe perfect the Christmas tree.