No matter how much care you give your plants, pests and diseases are a common challenge. If you're looking for a natural, effective solution, consider neem oil. Used to control fungal diseases and ...

Neem oil comes from the seeds of the neem tree (Azadirachta indica), a fast-growing member of the mahogany family native to southeast Asia. Typically expressed via a cold-pressing process, the oil is ...

Black spot, powdery mildew and rust are the big three fungal diseases that maim roses. Fortunately, you can use the same product on all three. Keep an eye on the leaves, and if you notice symptoms, ...

Many gardeners may be new to using neem oil as an insecticide around vegetable plants. Neem oil, however, has been around for thousands of years. The bark, leaves and oil of the neem tree have been ...

Horticultural oils come from several sources and have long been used to control plant pests and diseases. All are considered organic pesticides and most are petroleum based but some come from ...

Q:After many years, we have leafcutting bees in our San Francisco garden. Will spraying with neem hurt the bees in any way? I would be grateful for any advice you can give. A: Leafcutting bees are the ...

Q: I get some kind of leaf disease on my hydrangea bushes every year. I have about 15 of them in various garden locations. They start out fine but end up covered with these spots by mid-season. I ...