Liquid dish soap is a common product that most of us keep in our kitchens. But when diluted with water and sprayed on a spider, it clogs the arachnid's breathing pores, and the spider dies. For a more highly effective spider-killing solution, you can combine it with white vinegar.
If you have trouble with spiders in hard to reach corners, or notice wasps nesting outside your home, fill a spray bottle about 2:1 with water and Dawn dish soap (the blue one--it's awesome). ((You can do a lower concentration, but you run the risk of reduced effectiveness. 3:1 or 4:1 is probably fine too.))
Kerosene is the best thing to kill spiders. Even they can sense the presence of Kerosene and it escape from the spot. Even a drop of Kersene poured on a big spider can kill it instantly and it is the most effective way to kill Spiders.
Expert Response The use of a soap spray is effective for soft bodied insects such as aphids, whiteflies, spider mites, mealybugs and crawling scale. Not so much for caterpillars, hard scale, mature stink bugs and beetles.
Soap does penetrate the waxy outside skeleton of the insects. That allows it to dissolve the insect's cell membranes, which does lead to a rapid death. Being slippery, soap also clogs the insect's spiracles. The spiracles are breathing tubes located on the sides of the thorax (chest) which causes suffocation.
Spiders have an aversion to the smell of vinegar, so spraying a mixture of vinegar and water in spider-prone areas may deter them.
Windex is a popular household cleaner that is considered very safe for humans, and very dangerous for pests. If you see a pest inside of your home, spraying them with Windex often means instant death. Windex can be very effective for spiders, and for killing large numbers of ants.
While Dawn dish soap might be able to kill some fleas on contact, it is going to be difficult to make sure you've taken care of all of the fleas in your yard. It will require a lot of soap and a lot of time. Professional flea control for your yard is going to be a more effective approach.
Good old-fashioned soap and water is a safe, reliable, and inexpensive method. Create a soapy water solution that you can spray with a bottle. It will only take about 2 – 3 sprays to kill any roaches, as the soapy solution will cover their breathing pores and suffocate them.
The soap will clog their spiracles, the pores that they breathe through, and will kill them almost immediately.
Seal up your home to keep spiders from entering through cracks and crevices. Cover vents with fine mesh insect screens. Apply caulk around wires, cables, faucets and electrical components that run to the outside. Replace or fix torn window screens and caulk up gaps around windows.
There is evidence consistent with the idea of pain in crustaceans, insects and, to a lesser extent, spiders. There is little evidence of pain in millipedes, centipedes, scorpions, and horseshoe crabs but there have been few investigations of these groups.
Remember That Spiders Are Not Attracted to Your Food (But Their Prey Is) In general, spiders aren't interested in your PB&J. Spiders are mainly carnivores, much preferring a tasty fly, ant, or moth. Some also like to munch on things like leaves, nectar, and honeydew, but these won't be enough to hold their interest.
Dish soaps are usually applied to plants and grass diluted with water, typically in around 2-3 percent concentration. Experts recommend mixing a bit of vegetable oil with household liquid dish soap and water in a bottle and spraying it directly onto the affected areas of your lawn, then letting it soak in.
Powerwash contains several strong solvents, chelants, and high-alkaline ingredients that help it cling and decimate dirt—it's absolutely not regular Dawn dish soap in a pump spray bottle (as internet rumor has it). When I need to rid my dishes of stubborn stuck-on food, I'll just give 'em a soak.
Aphids, whiteflies, thrips, and mites are all good candidates for soapy water sprays. Sturdy, large-bodied insects like caterpillars and beetles — including Japanese beetles (sorry!) — are unlikely to be affected.
Some strong scents, such as lavender and mint, have been known to repel cockroaches.
Cockroach blood is a pigments, clear substance circulating through the interior of its body, and what usually spurts out of a roach when its hard, , outer shell—its exoskeleton—is penetrated or squashed is a cream-colored substance resembling nothing so much as pus or smegma.
Pine-Sol has been found to be effective in killing fleas upon direct contact. The alcohol it contains can kill fleas in any life stage—whether they're eggs, larvae, cocoons, or adults—once they come into contact with the product while it's still wet.
Salt is poisonous to spiders. You can create a saline solution using about ⅛ cup of salt mixed with a gallon of warm water. Pour it into a spray bottle and you have a natural spider-killing spray.
Another natural spider repellent you can make from household supplies is a mixture of water and liquid dish soap.
Hairspray contains dimethyl silicone, which will kill spiders when it comes into contact with their exoskeletons. Use a spray bottle to apply the hairspray on individual webs you find indoors because this is where they are likely to appear during the winter months.