Under 70 degrees, you can use as much neem … Neem oil is available at garden supply stores and many health food stores. You can also try spraying the plants with neem oil or white oil. While these beetles won’t kill your plants, trees or shrubs, they can cause some damage. Neem oil is used to control many pests, including whitefly, aphids, Japanese beetles, moth larvae, scale, and spider mites. Neem oil is the pressed oil of the fruits and seeds of the neem tree, and is often used in organic pest control and body care products. Hi Yield Grub Free Zone would be a better option for grubs. Neem oil doesn’t kill Japanese beetles instantaneously, but instead suffocates them over time. It might surprise you to learn that neem can prevent mosquito bites. Neem Oil. Water spray did not keep the mites from coming back. Neem oil can also be used to deter and possibly kill Japanese Beetles. Neem Oil. Dried neem leaves and neem seed oil are traditionally used to protect stored foods as well as fabrics from insect damage. When male beetles ingest the oil, they’ll pass it along to the eggs. 7 Safe Ways to Get Rid of Japanese Beetles in the Garden. Neem oil’s fungicidal properties help destroy fungal diseases such as powdery mildew, leaf spot, tip blight, and scab. Neem oil insecticide kills some pests after they have eaten leaves sprayed with it, while it repels others with its strong smell. Scientists call it an antifeedant. It won’t harm your plants or any beneficial insects. Does Neem Oil Kill Japanese Beetles? Any smaller size will do, just be sure they fit into the bucket and can be covered by the water. Neem Oil. Neem oil: Does not effectively kill adults, but is a repellent that reduces immigration into the orchard. 5) Use Neem oil. Downsides and Risk of Neem Oil. This product is also a fungicide and miticide all in one. Handpicking: Removing the Japanese beetles you see manually may be time-consuming, but it’s one of the most effective ways to get them out of the garden.Fill a bucket with hot soapy water and hold it beneath the plants as you gently shake them. In addition to controlling Japanese beetles, it also controls cucumber beetles, flea beetles, cabbageworms, Colorado potato beetles, and more. Even though summer may seem far away, there are plenty of ways to prepare your yard now for Japanese beetles. Simply spray your plants often for best results. The spider mites were killed but my tree suffered from sun burn. I understand that it may take some time but it does not stop them from devouring the leaves in the meantime. For best results, spray the lawn with neem oil at night and reapply after rainfall. And when mixed with water and sprayed onto plant foliage, it is fatal to beetles. Do not spray plants with Neem oil if the outside temperature exceeds 90F. It’s listed as a “miticide” due to its ability to kill a wide range of mites. Fertilome Triple Action with 70% Neem Oil is a great option for Japanese beetles and other insects. I would also recommend treating all of the non-edible plants, shrubs and rosebushes with Bayer Tree and Shrub granules. Neem oil soap repels or kills over 50 insect pests, most of which are never even seen in the home landscape. In rural areas of some Asian countries like India and Bangladesh, the walls and floor of food storage area covered with a mixture of cow dung, clay and neem oil to … Neem oil is a natural product pressed from the seed of the Neem tree, which repels and kills many types of insects. Apply every 7 days while beetles are feeding. Japanese Beetle Trap Systemic insecticides can be used to kill any insects or larvae who feed on plants, but as an organic gardener, I stay away from toxic chemicals. 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