Apply as you would apply liquid carbaryl and other liquid insecticides. Controlling cucumber beetles is important for your garden if you grow cucumbers, melons or squash. Identification: Depending on the species, common cucumber beetles are spotted or striped. Wait two days water it all off. I always recommend avoiding commercial pest killers and using natural or organic alternatives instead. Keep your gardens and surrounding areas free of weeds and long grasses to reduce spring numbers. Sevin dust has been shown to be effective against cutworms because they’ll come into contact with the dust as they’re foraging for food. As a scientist, Randy McLaughlin has been a professional technical writer since 1980. Will Sevin Dust kill zucchini beetles? Only apply this when you've seen cucumber beetles. There is a long list of cucurbit varieties that are favored by cucumber beetles, and are thus excellent trap crops. Sevin dust. Adult cucumber beetles overwinter in weeds, garden debris, and woody areas. Striped Cucumber Beetle (photo courtesy of Scott Bauer, USDA Agricultural Research Service, Bugwood.org) The adult spotted cucumber beetle is approximately the same size as the striped, however it has a yellowish body with 10-15 black spots on its wing covers. Their striking coloration makes them easy to see as they feed. Signs/Damage: Cucumber beetle larvae hatch from orange-yellow eggs laid at the base of plants; then they feed on plant roots for several weeks. Will Maggies Farm 3 - in - 1 Garden Spray RTU kill cucumber beetles? Another way to get rid of the adult squash bugs (and perhaps the cucumber beetles) on the spot is to use a biodegradable detergent dish soap. Watch for them from spring to fall. Sevin dust has been reported to be effective against cucumber beetles. Cucumber beetles can destroy your crops, leaving you without any cucumbers at the end of the season. With ornamentals (they like dahlias), I spray with a systemic pesticide. ft. of lawn and to use applied 4 fl. Cucumber beetles are nasty little pests that attack cucumbers and related plants (squash, melons, pumpkins) throughout the growing season. Sevin dust. Sabadilla is toxic to bugs and honey bees, and sabadilla should not be applied when bees are present. "Striped Cucumber Beetle" by Katja Schulz, "Spotted Cucumber Beetle" by Marvin Smith, "Spotted Cucumber Beetle - Diabrotica undecimpunctata" by Judy Gallagher, "Spotted cucumber beetle" by Julie Feinstein, Protecting Late-Season Veggies from Insect Pests, Plant Pest Detective: Identifying Common Plant Pests, Identify and Control Cucumber Beetles (Striped and Spotted). Is PyGanic Gardening good for cucumber beetles on pumpkins? GardenTech® brand offers several products to kill cucumber beetles by contact and keep protecting for up to three months*. Video of the Day Volume 0% Some are more toxic than others to honeybees. With severe infestations, plants may fall over under strong winds. They target members of the Cucurbit family, such as cucumbers, melons and squash, but some species go after eggplants, beans and other crops. What is the drench/foliar application rate for beetles on cucumber? 10 years ago. The cucumber beetle is a garden foe. Malathion in a 50 percent emulsion is added at 1/2 to 1 1/4 fluid ounces per 1 gallon of water to cover 1,000 to 3,500 square feet of garden area. I put it on about 3-4days ago because of cucumber beetles and this morning I saw one alive so I put just a little more dust on. Adult beetles (1/4 inch long) are similar in appearance to large ladybugs. Spotted types have black heads and twelve black spots on greenish- yellow wing coverings. Will sevin dust kill my plants if over used? What is the drench/foliar application rate for beetles on cucumber? However, you should always avoid using synthetic pesticides when possible, as they contain harmful chemicals to humans, pets, and the environment. Sevin Insect Killer Concentrate Review. The gardener looking for a pesticide to minimize Japanese beetle populations will find a friend in carbaryl, known by the trade name Sevin. Here is a close up of the spotted cucumber beetle. It says don't use it no more then 6 times a yr and I only used it once before. When you transplant, the systemic insecticide chloronicotinyl -- 0.235 percent imidacloprid -- will help prevent early damage of young plants. Cucumber beetles attack cucurbit crops, like cucumbers (Cucumis sativa), melons (Cucumis melo), summer squashes (Cucurbita pepo) and winter squashes (Cucurbita moscasta, Cucurbita maxima, Cucurbita pepo and Cucurbita argyrosperma). Then dust the plants well with diatomaceous earth to kill the remainder. 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