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.
DIY spray. 1  Another way of dealing with ants in the garden is making your own natural spray. 2  You will need 1/2 teaspoon of liquid dish soap, 1 1/2 tbsp. canola oil, 1 quart of water and a clean empty spray bottle.f you find the antsâ nest, pour DE on it. Donât forget to wear a mask when applying DE. Diatomaceous earth is a good thing to use when dealing with ants in the garden. It kills ants by suffocating them, drying the moisture in their bodies and cutting through their exoskeleton and spiracles.