The active ingredient in insecticidal soap comes from the fatty acids in animal fat or vegetable oil, so it’s important to use the real thing. Destroying the eggs and crawlers is just as important as controlling the adult mealybugs when it comes to treating an infested plant. Many plants and trees are vulnerable to damage from soap sprays, especially tomatoes (Lycopersicon esculentum), which are hardy in U.S. Department of Agriculture plant hardiness zones 10 through 11, and portulaca (Portulaca grandiflora), also called rose moss and grown in summer in USDA zones 2 through 11. Fill with tap water. … Dry dish soap and laundry detergent contain chemicals that are harmful to plants, so avoid using these when making a soap spray. Q. Their oval bodies, ringed with waxy filaments, have distinct parallel … Get all latest content delivered straight to your inbox. Fill a spray bottle with 1 quart (1 l) of lukewarm water and add a teaspoon of liquid soap such as Castile soap or other liquid dish soap. Test the spray on one leaf before applying to the rest, and repeat every few days as needed. Mealybugs are armored by a waxy coating, which can make it difficult for treatments to be effective. Mealybugs will come off when applied a strong jet of water directed at them, but that can be a bit cruel. Unfortunately, the chemicals in soap can be harmful to plants, so the concentration of soap in insecticidal soap sprays is very low, usually 1 to 2 percent. Search for: Close Search ... Insecticidal soap can be quite effective. To … The minerals in hard water react with soap and make it ineffective for destroying mealybugs. Soap breaks down the bugs' waxy protection and the insects dehydrate, but soap also contains harsh chemicals that can damage plants. Soapy sprays are one of the few effective treatments for mealybugs on plants. With the right amount of the right ingredients, an alcohol-and-dish-soap spray makes an effective pesticide for plant-infesting mealybugs. Add 1 teaspoon of dish wash liquid soap or even some shampoo to 1 litre of water and mix well before spraying on the plant. To make a castile soap spray, follow the instructions below. Dawn dish soap is one of many dish liquids that make an ideal soap solution, easily helping even novice gardeners battle against mealybugs in the tomato garden. Step 2 Add 1 quart of tap water. You can use baby shampoo, which works very well. Repeat the pest treatment in intervals of 7 to 10 days. You can also use systemic pesticides for house plants. Add 1 tablespoon of dish soap into a 1-quart spray bottle. You can also use a diluted solution of water and neem oil. Spider Mites Don’t use detergents (which aren’t actually soaps), dish soaps, or any products with degreasers, skin moisturizers, or synthetic chemicals. The active ingredient in insecticidal soap is potassium salt of fatty acids (or soap salts). The trouble is that the … Another good way to treat an infestation of insects or mealybugs on succulents is with insecticidal soap. Pour the solution in the spray bottle. Step 4 Spritz the soapy insecticide directly onto mealybugs. To make a soap spray for controlling mealybugs on plants, mix 2 teaspoons of mild liquid dish detergent in 1 quart of water. Are there other ways to kill mealybugs? Soap sprays are most likely to be harmful to plants when the weather is hot and sunny. Neem oil or insecticidal spray - Neem oil is a non-toxic, all-natural oil derived from the neem tree. Soapy sprays are one of the few effective treatments for mealybugs on plants. Adult mealybugs are covered in a waxy coating, which makes them difficult to control. The soap kills on contact. Rather than repeating all of the other great articles out there on getting rid of fungus and mealybugs, I’ve provided some links below to good quick reads. Step 2. If the local water in your area is hard, you'll probably see limescale deposits on showerheads and hot water faucets. Learn everything from how to identify mealybugs to how to get rid of these nasty pests. The wax helps protect mealybugs from their predators, and it repels water-based insecticides. This soap has been around for over 200 years to treat bugs that infest plants. A graduate of Leeds University, Jenny Green completed Master of Arts in English literature in 1998 and has been writing about gardening and homes since 2007. Without their covering, the insects soon die from fluid loss. Homemade dish soap spray - Soap will suffocate mealybugs. Soap spray can effectively kill mealybugs. Continue treating the Mealybugs until they don’t come back. If you'd like to try a homemade soap spray to control a mealybug infestation, use soft water to dilute the soap and avoid certain types of soap.