Download or read book The Population Trends in Predaceous Arthropods in Apple Orchards Sprayed with Different Pesticides and the Influence of These Trends on the Population Density of Phytophagous Mites and Some Other Pests written by E. Niemczyk and published by . This book was released on 1968 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Summary of Current Program and Preliminary Report of Progress written by United States. Entomology Research Division and published by . This book was released on 1967 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Completed Foreign Agricultural Research Grants written by United States. Science and Education Administration. International Programs Staff and published by . This book was released on 1979 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Foreign Agricultural Research Grants Completed Under the Special Foreign Currency Program under Public Law 480 Sections 104 b 1 and 104 b 3 written by United States. Agricultural Research Service. International Programs Division and published by . This book was released on 1977 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Summary of Current Program and Preliminary Report of Progress written by United States. Entomology Research Division and published by . This book was released on 1966 with total page 1094 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Zeitschrift f r angewandte Entomologie written by and published by . This book was released on 1981 with total page 576 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book National Agricultural Library Catalog written by National Agricultural Library (U.S.) and published by . This book was released on 1983 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Integrated Control of the Greenhouse Whitefly Trialeurodes Vaporariorum written by Barbara Sohm Ekbom and published by . This book was released on 1981 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sustainable Agriculture Volume 2 written by Eric Lichtfouse and published by Springer Science & Business Media. This book was released on 2011-02-09 with total page 985 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book gathers review articles that analyze current agricultural issues and knowledge, then propose alternative solutions. It will therefore help all scientists, decision-makers, professors, farmers and politicians who wish to build a safe agriculture, energy and food system for future generations.
Download or read book Pesticide Resistance in Arthropods written by Richard Roush and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bruce E. Tabashnik and Richard T. Roush Pesticide resistance is an increasingly urgent worldwide problem. Resistance to one or more pesticides has been documented in more than 440 species of insects and mites. Resistance in vectors of human dise8se, particularly malaria-transmit ting mosquitoes, is a serious threat to public health in many nations. Agricultural productivity is jeopardized because of widespread resistance in crop and livestock pests. Serious resistance problems are also evident in pests of the urban environ ment, most notably cockroaches. Better understanding of pesticide resistance is needed to devise techniques for managing resistance (Le. , slowing, preventing, or reversing development of resistance in pests and promoting it in beneficial natural enemies). At the same time, resistance is a dramatic example of evolution. Knowledge of resistance can thus provide fundamental insights into evolution, genetics, physiology, and ecology. Resistance management can help to reduce the harmful effects of pesticides by decreasing rates of pesticide use and prolonging the efficacy of environmentally safe pesticides. In response to resistance problems, the concentration or frequency of pesticide applications is often increased. Effective resistance management would reduce this type of increased pesticide use. Improved monitoring of resis tance would also decrease the number of ineffective pesticide applications that are made when a resistance problem exists but has not been diagnosed. Resistance often leads to replacement of one pesticide with another that is more expensive and less compatible with alternative controls.
Download or read book Ecological Impacts of Toxic Chemicals written by Francisco Sánchez-Bayo, Paul J. van den Brink, Reinier M. Mann and published by Francisco Sanchez-Bayo. This book was released on 2011-09-09 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ecological Impacts of Toxic Chemicals presents a comprehensive, yet readable account of the known disturbances caused by all kinds of toxic chemicals on both aquatic and terrestrial ecosystems. Topics cover the sources of toxicants, their fate and distribution through the planet, their impacts on specific ecosystems, and their remediation by natural systems. Each chapter is written by well-known specialists in those areas, for the general public, students, and even scientists from outside this field. The book intends to raise awareness of the dangers of chemical pollution in a world dominated by industry and globalization of resources. Because the problems are widespread and far reaching, it is hoped that confronting the facts may prompt better management practices at industrial, agricultural and all levels of management, from local to governmental, so as to reduce the negative impacts of chemical contaminants on our planet.
Download or read book Entomology Abstracts written by and published by . This book was released on 1970 with total page 478 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Biodiversity and Pest Management in Agroecosystems written by Miguel Altieri and published by CRC Press. This book was released on 2018-10-03 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt: Explore the latest research on biological control! Completely updated for 2004, this new edition examines methods for making agricultural systems less susceptible to insect pests. Containing new findings and reports of strategies, Biodiversity and Pest Management in Agroecosystems, Second Edition will show you how pests can be managed by enhancing beneficial biodiversity using agroecological diversification methods. Biodiversity and Pest Management in Agroecosystems, Second Edition provides you with an essential overview of the role of biodiversity in agriculture and then gets specific, with new and updated information on: the agroecology of pest management plant diversity and pest outbreaks within agroecosystems diversification strategies for pest management how sustainable farming systems are designed You'll also explore: the role of plant diversity on the biology of beneficial insects insect regulation in diverse agroecosystems manipulation of plant diversity in agroecosystems ecological and socioeconomic implications The fact is, many modern agroecosystems are unstable as a consequence of constant human intervention in crop systems which ignore ecological principles. With case studies on a variety of crops and pests, Biodiversity and Pest Management in Agroecosystems, Second Edition explores entomological aspects of agriculture and analyzes the ecological basis for the maintenance of biodiversity. It will familiarize you with the theory and practice of enhancing biological pest control in agricultural systems by managing vegetational diversity via multiple cropping, cover cropping, rotations, and other spatial and temporal designs. With studies on intercropping, cover cropping, weed management, and crop-field border vegetation manipulation, this book covers the effects of these diverse systems on pest population density and the mechanisms underlying pest reduction in polycultures. Make it a part of your reference/teaching collection today!
Download or read book Natural Enemies written by Ann E. Hajek and published by Cambridge University Press. This book was released on 2004-02-12 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt: Publisher Description
Download or read book Ecological Effects of Pesticides on Non target Species written by David Pimentel and published by . This book was released on 1971 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Comparisons of Phytoseiid Predator Population in Sprayed and Unsprayed Apple Orchards in Cache Valley Utah written by Yeboa A. Dodoo and published by . This book was released on 1968 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A comparative study of phytoseiid populations was made of two well- cultivated and regularly sprayed apple orchards with two unsprayed orchards in Cache Valley, northern Utah. Two phytoseiid species, Typhlodromus mcgregori Chant and T. occidentalis Nesbitt were observed on the apple leaves, under the bark, and occasionally in the litter and soil. Amblyseius cucumeris (Oudemans) occurred in the soil and litter and occasionally under bark. T. mcgregori was dominant in the unsprayed orchards, and T. occidentalis in the sprayed. Of the phytophagous mites, which served as food for the phytoseiids, the two-spotted mite, Tetranychus urticae Koch was dominant. Other phytophagous mites were the brown mite, Bryobia rubrioculus (Scheuten), the European red mite, Panonychus ulmi (Koch), and the McDaniel mite, Tetranychus Mcdanieli McGregor. The study suggests Mcgregori to be a non-specific, facultative predator of phytophagous mites. Mcgregori was adversely affected by standard pesticide practices, but T. occidentalis survived in larger numbers. The phytoseiids seem well adjusted to the environment of the unsprayed orchards and to contribute to the low phytophagous mite populations in those orchards. In the sprayed orchards, the phytoseiids failed to control the high populations of phytophagous mites which developed. No statistical differences were found in the efficiencies of the mite brushing machine and Berlese funnels in removing either phytoseiid or phytophagous mites from apple leaves.
Download or read book Orchard Pest Management written by Elizabeth Hull Beers and published by . This book was released on 1993 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
