Powdery mildew is among the most widespread plant diseases and is easily recognized by its white growth that covers foliage like a dusting of flour. This group of fungal pathogens affects hundreds of ...

I received the following email from Doug Brooks, who gardens in Claremont. “For years, I have used some type of yearly insect control product to help protect my fruit trees. The last few years I have ...

Lots of plants, both edible and ornamental, can get powdery mildew. Unlike many other fungal plant diseases, the fungi that cause powdery mildew thrive in hot, dry weather that's often the norm in mid ...

Horticultural oils can be used as a dormant spray on fruit trees to proactively control overwintering insects and diseases. Dormant oil sprays should be applied in late March or April before the ...