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.
Natureâs way of controlling garden pests without chemicals! Beneficial insects feast on aphids, mites, caterpillars and other plant-consuming bugs and are harmless to people, plants and pets. Our comprehensive selection helps you match the correct predator/parasite to your pest problem. For best results, make releases at the first sign of a problem. If pest populations are high, use the least-toxic, short-lived natural pesticide â Insecticidal Soaps, Horticultural Oils, Botanical Insecticides â to establish control before releasing predators/parasites.