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In this concise and fascinating account, Paul DeBach traces the historical background of biological control and examines in detail some of the most famous examples of the discovery abroad of new natural enemies and their importation into the US and elsewhere to achieve successful biological...
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1985-01-01 The purpose of this book is to meet the need for a reference that relates the principles of weed science directly to weed control situations encountered in the field. Although the concept is simple, the objective is difficult to attain. To be successful in weed control, one must conceptualize...
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This manual has several purposes. First, the extent and nature of weed problems are studied. Then, the importance of knowing the growth habits of the weeds is discussed. Next the various methods of control are examined. The recommended safety practices are also included in the study. Finally, the...
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关键资源2019-03-21 This Technical Note provides an overview of parasitic plants of agricultural significance in Africa. Parasitic weeds cause drought stress and stunted crops. Affected plants include cereal grains (e.g., sorghum [Sorghum bicolor] and maize [Zea mays]) and grain legumes (e.g., cowpea [Vigna...
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1996-01-01 Beginning and expert gardeners will learn how to identify and control weeds using earth-safe methods.
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1977-01-19 This book on tropical diseases, pests, and weeds has been written by 152 authors from many countries, all of whom can claim personal experience in their subjects, gained largely in the field.
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1974-01-01 430 pages, illustrated
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2007-05-25 Weeds are the pioneer plants of disturbed soils and can adversely affect the use, economic value, and aesthetic aspect of the lands and waters they infest. Knowledge of the major mechanisms of weed survival is essential for developing effective methods of weed control to maximize the use and...
- Abstract,Journal of Agricultural Science, 2019 The productivity of citrus plants has not reached its maximum potential due to the action of several factors that directly affect agricultural profitability. Among these factors, weed interference has a great importance since it causes a reduction in...
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1996-01-19 The parasiticweed Striga hermonthica is a major problem in African millet fields. International Agricultural Development (Jan/Feb 1994) reports that dense intercropping of cowpea in millet stands can reduce Striga emergence.