On reaching the ground, this strong downdraught spreads out to produce a gusty wind which has the potential to cause significant damage. Severe thunderstorms produce wind gusts of 90km/h or more, with peak winds exceeding 160km/h in the most damaging storms.
Pepper. Pepper also gives off a strong scent that repels ladybugs without killing them. When your garden emits a hot pepper scent, ladybugs will steer clear of your plants and shrubbery. In a spray bottle, mix two cups of water with three teaspoons of crushed red pepper, chili pepper or paprika.
1 Tanacetum genus (pyrethrum, tansy, feverfew) - repels moths, flies, ants, mice, mosquitoes, cockroaches, mites and bedbugs. 2  Tansy is a strong herb suitable for growing around doorways to act as an insect deterrence. 3  Pyrethrum is great made into a spray. Tanacetum genus (pyrethrum, tansy, feverfew) - repels moths, flies, ants, mice, mosquitoes, cockroaches, mites and bedbugs. 2  Tansy is a strong herb suitable for growing around doorways to act as an insect deterrence. 3  Pyrethrum is great made into a spray.