Biological control of pests is the method of controlling pests, whether of plants, animals or man, by exposing them to their natural enemies or unfavourable conditions. It includes such techniques as the introduction of exotic predators or diseases of the pest organism, manipulation of the pest's environment, the breeding of crop plants resistant to disease, releasing sterile males of a pest to interfere with reproduction, using sex attractants to trap and kill males before mating can ensue, and manipulating genes in order to render males sterile. However, it is underutilized in many of the developing countries which could best benefit from it.
In central and south China, the snail hosts of schistosomiasis were effectively controlled by cutting away the sloping sides of ponds and canals to create vertical walls which were a less hospitable environment than a gentle slope at the junction of land and water which the snails prefer for mating. This method of vector control was possible and successful because of the labour-intensive Chinese rural economy, and thorough understanding of the habits of the local snails; such a combination does not often occur.
The Encyclopedia of World Problems and Human Potential is a unique, experimental research work of the Union of International Associations. It is currently published as a searchable online platform with profiles of world problems, action strategies, and human values that are interlinked in novel and innovative ways. These connections are based on a range of relationships such as broader and narrower scope, aggravation, relatedness and more. By concentrating on these links and relationships, the Encyclopedia is uniquely positioned to bring focus to the complex and expansive sphere of global issues and their interconnected nature.
The initial content for the Encyclopedia was seeded from UIA’s Yearbook of International Organizations. UIA’s decades of collected data on the enormous variety of association life provided a broad initial perspective on the myriad problems of humanity. Recognizing that international associations are generally confronting world problems and developing action strategies based on particular values, the initial content was based on the descriptions, aims, titles and profiles of international associations.
Non-profit, apolitical, independent, and non-governmental in nature, the UIA has been a pioneer in the research, monitoring and provision of information on international organizations, international associations and their global challenges since 1907.