A natural spider killer can be made using tea-tree oil, neem oil, dish soap and water. Begin by mixing 2 tablespoons of dish soap into some warm water. Add five drops of tea-tree oil and 1 ounce of neem oil to the solution. Mix the ingredients together in a spray bottle and apply the solution to the areas where spiders are present.Continue Reading
Other natural spider repellents can also be made using garlic cloves, peppermint oil, tobacco leaves and citronella. These ingredients can each be added to water in the same manner as the solution mentioned previously. In addition to these homemade spider repellents, there are also electric spider repellents that can be plugged into wall sockets around the house. These gadgets emit high-frequency sound waves that affect the spiders' nervous systems and cause them to vacate the area.
Homes can be kept spider-free by making sure that porch lights are turned off at night to decrease insect activity around the home, placing sprigs of eucalyptus around the perimeter of the house and spraying the plants around the outside of the home with a solution of saltwater or chestnut-extract water. These sprays are most effective when used where spiders have been seen and where their food sources dwell.Learn more about Spiders