In such cases the weeps consist of small-diameter plastic, clay or metal pipes extending through the wall to a layer of porous backfill. Typically, weeps are arranged to direct water which may have entered an assembly from outside back to the outside.
A few of several safe household chemicals to use are vinegar, dishwashing soap and rubbing alcohol, according to an Oregon State University Extension Service publication called Using Home Remedies to Control Garden Pests, (EC 1586). The publication, complete with photos, is available free of charge online.
5 More Plants That Repel Biting Bugs. Lemon balm isnât the only herb on the block that keeps bugs at bay. Here are 5 more herbs that work as bug repellents. Like lemon balm, you can plant them in areas you want to keep bugs away from, or crush the leaves and rub them into your skin.