Chinch bugs are a small bug that can cause damage to your lawn. They are common during the springtime, but can be prevalent during the fall as well. When the bugs are nymphs, an early stage of the bug's development, they can eat the grass in your lawn and cause significant damage. You can use a commercial pesticide to treat chinch bugs in your yard, but these can be expensive and often use toxic chemicals you may want to avoid using around your home. Another option is to make your own pesticides using common household ingredients or purchase nontoxic treatments that are less expensive and chemical-free.
Place one gallon of room-temperature water into a storage container, such as a clean plastic milk carton.
Add 2 tbsp. natural liquid soap and 2 drops of olive oil (Resource 1). Mix thoroughly.
Place some of the mixture into a spray bottle. The rest can be kept in the milk carton until a future use and will keep for three to four months.
Spray the mixture onto plants that are infested with chinch bugs to kill them.
Purchase diatomaceous earth. Diatomaceous earth is a powder made of ground-up fossils. Make sure you purchase the garden or food-grade quality, which you can purchase at your local garden-supply store.
Sprinkle the diatomaceous earth onto the lawn.
Leave the powder to kill the chinch bugs. It dries their exoskeleton up and suffocates them. You can reapply the diatomaceous earth after it rains if you find you still have an infestation.
Mix one part natural liquid soap to three parts water in a large bucket. The amount of the mixture will depend on the size of the area you wish to treat.
Pour the soap mixture over the area you want to treat. Thoroughly soak the area.
Cover the area with a white flannel cloth, such as a tablecloth.
Leave the cloth in place for an hour and then lift the cloth. The chinch bugs will have climbed up and onto the cloth to get out of the wet ground.
Dispose of the cloth in a sealed bag and throw it away.