Download or read book The Stem Sawflies of Florida Hymenoptera Cephidae written by Lionel Alvin Stange and published by . This book was released on 1997 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Stem Sawflies of Economic Importance in Grain Crops in the United States written by Lew E. Wallace and published by . This book was released on 1966 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Wheat Stem Sawfly Hymenoptera Cephidae Revisited written by Michael J. Weiss and published by . This book was released on 1992 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book On the Geographic Origin of the Wheat Stem Sawfly Hymenoptera Cephidae written by Michael A. Ivie and published by . This book was released on 2001 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Disperal and Sampling of the Wheat Stem Sawfly Cephus Cictus Norton Hymenoptera Cephidae written by Christopher T. McCullough and published by . This book was released on 2016 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt: The wheat stem sawfly, Cephus cinctus Norton (Hymenoptera: Cephidae), is a serious insect pest of wheat, Triticum aestivum L., in the northern central Great Plains. The sawfly has been a pest of wheat in Montana, North Dakota, and Canada since the early 20th century. It was first detected in Nebraska winter wheat in the early 1990s, in Scotts Bluff County. The sawfly has since spread throughout the Nebraska Panhandle region and become a pest of serious concern. To gain a better understanding of the sawfly in Nebraska, investigations on the emergence, dispersal, and sampling of the sawfly were conducted. Observations on the emergence and dispersal of the adult sawfly were made in 2014 and 2015 in three winter wheat fields in the Nebraska Panhandle by using emergence cages, sticky traps, and sweep net sampling. Adult sawflies begin emerging in mid-May and are no longer found by the end of June. Adult sawfly densities decreased the farther into the wheat that was sampled. This edge effect was observed for both sexes of the sawfly, but it is more apparent with male sawflies. The adult sawfly has an aggregated distribution when described by Taylor's Power Law. By using Taylor's Power Law, the number of sweep net samples required to maintain a desired precision level was determined. When sampling at early wheat heading, five, 20-sweep sweep net samples are needed to maintain a 20% precision level. These sampling data were correlated to larval infestation rates and used to develop a sampling plan that predicts larval infestation rates based upon stem density and the number of adults sampled. Sampling adults gives wheat growers ample time to take management action, such as swathing, during the current growing season. It also allows time for growers to change their wheat variety to a more resistant, solid stem wheat variety, for the next growing season.
Download or read book Tri ology Technical Report written by and published by . This book was released on 1997 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book IPM and Biological Control of Plant Pests written by Jayne T. MacLean and published by . This book was released on 1990 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Food Safety and Sanitation Audiovisuals written by Natalie Updegrove Partridge and published by . This book was released on 1990 with total page 558 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Field Crop Arthropod Pests of Economic Importance written by Peter A. Edde and published by Academic Press. This book was released on 2021-08-21 with total page 1004 pages. Available in PDF, EPUB and Kindle. Book excerpt: Field Crop Arthropod Pests of Economic Importance presents detailed descriptions of the biology and ecology of important arthropod pest of selected global field crops. Standard management options for insect pest control on crops include biological, non-chemical, and chemical approaches. However, because agricultural crops face a wide range of insect pests throughout the year, it can prove difficult to find a simple solution to insect pest control in many, if not most, cropping systems. A whole-farm or integrated pest management approach combines cultural, natural, and chemical controls to maintain insect pest populations below levels that cause economic damage to the crop. This practice requires accurate species identification and thorough knowledge of the biology and ecology of the target organism. Integration and effective use of various control components is often enhanced when the target organism is correctly identified, and its biology and ecology are known. This book provides a key resource toward that identification and understanding. Students and professionals in agronomy, insect detection and survey, and economic entomology will find the book a valuable learning aid and resource tool. Includes insect synonyms, common names, and geographic distribution Provides information on natural enemies Is thoroughly referenced for future research
Download or read book Florida Public Documents written by and published by . This book was released on 1998-10 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Quick Bibliography Series written by and published by . This book was released on 1990 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Impact of Harvest Operations on Parasitism of the Wheat Stem Sawfly Cephus Cinctus Norton Hymenoptera Cephidae written by Scott Byron Meers and published by . This book was released on 2005 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is what should be left standing because it protects critical overwintering habitat. Removing only the wheat heads at harvest resulted in maximum parasitoid conservation. Special efforts to conserve parasitoids in solid stem wheat should be concentrated in areas of each field supporting above average crop growth because these high biomass areas harbor more overwintering cocoons. In hollow stem wheat the area 7.5 to 30 meters from the field margin is the most critical to conserve. If the hollow stem wheat has lower levels of infestation (less than 60% infested) the area to be conserved should extend to the field margin. These recommendations should be incorporated with other management practices that encourage sawfly parasitoids such as: solid stem wheat varieties, avoiding the use of insecticide during parasitoid flight, larger block fields, minimum tillage and chemical fallow. The improvement of parasitoid activity should further be incorporated into a complete integrated pest management approach including solid stem wheat, crop rotation, larger block fields and trap strips.
Download or read book Division of Plant Industry Biennial Report written by Florida. Division of Plant Industry and published by . This book was released on 1992 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Biennial Report written by Florida. Division of Plant Industry and published by . This book was released on 1996 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Macroevolutionary Theory on Macroecological Patterns written by Peter W. Price and published by Cambridge University Press. This book was released on 2003 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt: Table of contents
Download or read book Encyclopedia of Entomology written by John L. Capinera and published by Springer Science & Business Media. This book was released on 2008-08-11 with total page 4346 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text brings together fundamental information on insect taxa, morphology, ecology, behavior, physiology, and genetics. Close relatives of insects, such as spiders and mites, are included.
Download or read book Bibliography of Agriculture written by and published by . This book was released on 1972 with total page 876 pages. Available in PDF, EPUB and Kindle. Book excerpt:
