Download or read book New Strategies in Locust Control written by S. Krall and published by Birkhäuser. This book was released on 2012-12-06 with total page 487 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the late eighties large-scale control operations were carried out to control a major desert locust upsurge in Africa. For the first time since the banning of organochlorine pesticides these operations relied mainly on non-persistent pesticides such as organophosphates and pyrethroids. The amount of pesticides sprayed and the area covered were probably the highest in the history of locust control and raised criticism with respect to efficacy, economic viability and environmental impact. As a consequence, applied research into the problem was intensified, both at the national and the international level, with the goal of finding new and environmentally sound approaches and solutions to locust and grasshopper control. Emphasis was laid on developing new control agents and techniques.

Download or read book How to Control the Grasshoppers written by Elmer Darwin Ball and published by . This book was released on 1915 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book How to Control Locusts Or Grasshoppers written by Arthur Gibson and published by . This book was released on 1919 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book How to Control Locusts Or Grasshoppers microform written by Canada. Division of Entomology and published by . This book was released on 1918 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Grasshoppers and Their Control written by Harvey Charles Severin and published by . This book was released on 1917 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Plague of Locusts written by and published by . This book was released on 1990 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Locusts and Grasshoppers written by Boris Petrovich Uvarov and published by . This book was released on 1928 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Biological Control of Locusts and Grasshoppers written by C. J. Lomer and published by . This book was released on 1992 with total page 414 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Pat Welsh s Southern California Organic Gardening written by Pat Welsh and published by Chronicle Books. This book was released on 2010-07-01 with total page 457 pages. Available in PDF, EPUB and Kindle. Book excerpt: “Here is the southern California gardener’s calendar laid out with clarity and zest; no weasel words, no ifs and buts.” —Pacific Horticulture In this completely revised and updated classic, beloved garden expert Pat Welsh shares how to garden the organic way. This edition includes forty color photographs; a simple month-by-month format that shows gardeners exactly what to do throughout the year; terrific advice on gardening with drought-tolerant and fire-resistant plants; and plenty of fresh information on organic soils, fertilizers, and pest control. Useful for newbies and seasoned green thumbs alike, Pat Welsh’s Southern California Organic Gardening is the indispensable guide for every Southern California gardener.

Download or read book How to Control Locusts or Grasshoppers written by Norman Criddle and published by . This book was released on 1918 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Grasshoppers and Grassland Health written by Jeffrey A. Lockwood and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt: Acridids (grasshoppers and locusts) can range from being rare curiosities to abundant menaces. Some are threatened with extinction and become subjects of intensive conservation efforts, while others are devastating pests and become the objects of massive control programmes. Even within a species, there are times when the animal is so abundant that its crushed masses cause the wheels of trains to skid (the Rocky Mountain grasshopper, Melanoplus spretus Walsh in western North America in the 1860s and I 870s), while at other times the animal is alarmingly scarce (the Rocky Mountain grasshopper went extinct in the early 1900s). Why are there these extremes in one insect family, and even in a single species? The NATO workshop examined this paradox and its implications for Environmental Security, which must address both the elements of land use (agricultural production and pest management) and conservation of biodiversity. The reconciliation of these objectives clearly demands a critical assessment of current knowledge and policies, identification of future research, and close working relationships among scientists. Insects can present two clear faces, as well as the intervening gradation. These extremes require us to respond in two ways: conservation of scarce species and suppression of abundant (harmful) species. But perhaps most important, these opposite poles also provide the opportunity for an exchange of information and insight.

Download or read book How to Control Locusts Or Grasshoppers written by Canada. Dept. of Agriculture. Entomological Branch and published by . This book was released on 1918 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Environmental Side effects of Locust and Grasshopper Control written by and published by . This book was released on 1997 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Grasshopper Control written by and published by . This book was released on 1964 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Locust Plague in the United States written by Charles Valentine Riley and published by Chicago : Rand, McNally. This book was released on 1877 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Grasshoppers Locusts written by John Rowley and published by . This book was released on 1993 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book New Strategies in Locust Control written by S. Krall and published by . This book was released on 1997-12-01 with total page 552 pages. Available in PDF, EPUB and Kindle. Book excerpt: