A. Mix equal parts of powdered sugar and powdered boric acid, obtainable from any hardware store. Sprinkle in corners and along baseboards. Find points of entry and seal them off. Store food in sealed containers and keep the kitchen clean. At night, drain your sink and wipe dry.
Cockroaches are dependent on water, so check for small leaks under the sink and seal.
The key principle is biodiversity , first accomplished by building a balanced, fertile soil rich in microorganisms. A diversity of crops are grown in a long period of rotation, particularly grasses and legumes for animal forage and green manures. Such rotations break pest life cycles, improve soil fertility, and reduce soil erosion. In addition, the natural resources on the farm such as forests, wetlands , and meadows are viewed as critical resources for climate and water management and provide habitat for indigenous species. Certified organic crops can be harvested after three continuous years since the last application of a prohibited pesticide or fertilizer.