Skip to main content



DIY Neem Oil Insecticide For Japanese Beetles

Ask any Minnesotan gardener, the number one destroyer of a vegetable garden is the Japanese beetle, an invasive insect species that attack the leaves of vegetable plants, berry bushes and vines, and fruit trees. DIY Neem Oil Insect Spray Neem oil is a natural pesticide made from the seeds of the tropical Neem tree. It's been used for hundreds of years to control insects and is not harmful to humans, bees, or pets. In fact, Neem oil is often used in cosmetics. The active ingredient in Neem oil is Azadirachtin.  How Does Neem Oil Work? Neem oil is a bitter thick brown oil that has a slight garlic scent. When Japanese beetles eat the leaves that are coated in Neem oil, their voracious appetites are inhibited by the oil which causes the beetle to wither and die before they are able to mate.  I have also added essential oils to the Neem oil spray as they are natural insect repellents. The USDA conducted a  study  to determine which essential oil repel Japanese beetles and they found tha

Latest Posts

Auto Watering Garden Tour

Gardening With a Drip Auto Watering System