Download or read book Cotton Bollworm Heliocoverpa Zea and Beet Armyworm Spodoptera Exigua Development and Survival on Acala Glanded and Glandless Cotton in New Mexico written by Andrew Todd Garnett and published by . This book was released on 2014 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt: Commercial cotton cultivars have glands that produce gossypol, a natural chemical defense chemical against insect species-pests; this compound is absent in glandless cultivars. Glandless varieties were initially rejected for commercial production due to insect losses. Lower insect pressure in parts of New Mexico could potentially support production of glandless cotton varieties as a niche crop with added seed value as a potential food source for livestock and human consumption. In 20011 and 2012 trials were conducted at the New Mexico State University Agricultural Science Center in Artesia, NM, to evaluate the development and survival of cotton bollworm and beet armyworm in field to laboratory trials. In 2012 trials were conducted to determine the effects of nitrogen concentration on feeding preference and development on glanded compared to glandless cotton. Beet armyworm and bollworm survival was 12% and 22% higher, respectively, on glandless versus glanded cotton. Development to pupation was longer for larvae fed glanded cotton, requiring an average of two more days for beet armyworm and three more days for bollworm, compared to larvae fed glandless cotton. Beet armyworms fed glandless cotton were 65% heavier at 14 days compared to larvae fed glanded cotton. Mean bollworm weights at 10 days were 43% heavier in larvae fed glandless vs glanded cotton. Fourth instar dry larval weights were not significantly different between glanded and glandless treatments. High N plots had 200 lb N applied while low N plots had 100 lb N. Mean petiole N levels from, date to date, were significantly higher in high N treatment plots 5581 vs 1998 in low N treatments plots. Survival to pupation was affected by presence of glands, with five and eight times higher rates of survival on glandless cotton compared to glanded cotton, beet armyworm and bollworm respectively. Days to pupation were two days longer for beet armyworm and ten days longer for bollworm when fed glanded compared to glandless cotton. Bollworm fourth instar larval dry weights were twice as heavy when fed glandless cotton compared to those fed glanded cotton, but showed no significant difference in beet armyworm dry fourth instar larval weights. Bollworm pupae were 16% heavier on glandless compared to glanded cotton. Beet armyworm pupae weights were not significantly different between the glandless and glanded treatments. Field square damage was higher in glandless cotton plots compared to glanded plots, 7.2% damage compared to 3.4% damage respectively in 2012.
Download or read book The Cotton Bollworm written by Altus Lacy Quaintance and published by . This book was released on 1907 with total page 1384 pages. Available in PDF, EPUB and Kindle. Book excerpt: Brief summary of methods of getting rid of rats to prevent disease and damage.
Download or read book Growth and Development Food Utilization Oviposition and Field Studies of the Bollworm Heliothis Zea Boddie on Glanded and Glandless Cotton written by Billy Frank Oliver and published by . This book was released on 1968 with total page 75 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Microclimatic Factors Affecting Development and Survival of the Beet Armyworm Spodoptera Exigua Lib in Arizona written by Paul James Pinter and published by . This book was released on 1976 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Microclimatic Factors Affecting Development and Survival of the Beet Armyworm Spodoptera Exigua Hb in Arizona written by Paul James Pinter and published by . This book was released on 1976 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Egg Development of the Cotton Bollworm Heliothis Zea Boddie Under Various Static and Fluctuating Environment Regimes written by William Page Eubank and published by . This book was released on 1972 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Cotton Bollworm written by Altus Lacy Quaintance and published by . This book was released on 1904 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Cotton Bollworm Classic Reprint written by A. L. Quaintance and published by Forgotten Books. This book was released on 2018-03-17 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from The Cotton Bollworm During that year special attention was given to field work, though such laboratory investigations as were possible were conducted. The principal results of field work in 1903 have been, reported in Farmers'. Bulletin no. 191 of this Department. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Download or read book The Cotton Bollworm written by Altus Lacy Quaintance and published by Palala Press. This book was released on 2016-04-26 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work.This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Download or read book Effect of Glanded and Glandless Cotton on the Development and Mortality of Heliothis Zea lepidoptera Noctuidae written by Fanrong Zeng and published by . This book was released on 1989 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cotton Facts written by M. Rafiq Chaudhry and published by . This book was released on 2003 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cotton Breeding and Biotechnology written by Zulqurnain Khan and published by CRC Press. This book was released on 2022-03-14 with total page 533 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cotton Breeding and Biotechnology presents information on one of the most economically important crops of the world, cotton. This book contains chapters on the history of cotton; breeding approaches; technologies for increasing germination, crop growth and yield; and fiber quality issues. It emphasizes sustainable development in the cotton industry analysing the progress of breeding technologies under environmental adversity. The book explores the national and global status of cotton crop, including cotton production, possible impacts of climate change, and the vulnerability of cotton to pest infestations and disease attacks. Features Focuses on cotton breeding and biotechnology Proposes ideas, data, and strategies to mount breeding programs for enhancing cotton production Details strategies for cotton quality improvement against abiotic and biotic stresses Emphasizes the revival of cotton in Pakistan and South Asian region This book is useful to researchers, cotton breeders and growers, farmers, and the agriculture industry.
Download or read book Fiber Plants written by K.G. Ramawat and published by Springer. This book was released on 2016-10-27 with total page 263 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book assesses the potential effects of biotechnological approaches, particularly genetic modification, on the present state of fiber crop cultivation and sustainable production. Leading international researchers discuss and explain how biotechnology can affect and solve problems in connection with fiber crops. The topics covered include biology, biotechnology, genomics and applications of fiber crops like cotton, flax, jute and bamboo. Providing complete, comprehensive and broad subject-based reviews, the book offers a valuable resource for students, teachers, and researchers including agriculturists, biotechnologists and botanists, as well as industrialists and government agencies involved in the planning of fiber crop cultivation.
Download or read book Developments in Food Proteins written by B. J. F. Hudson and published by . This book was released on 1982 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Host Plant Resistance to Insects written by Niranjan Panda and published by Oxford University Press, USA. This book was released on 1995 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt: Historical overview of host plant resistance; Crop plant and insect diversity; Secondary plant metabolites for insect resistance; Insect - plant interactions; Host plant selection; Mechanisms of resistance; Factors affecting expression of resistance; Screening for insect resistance; Plant resistance and insect pest management; Genetics of resistance to insects; Breeding for resistance to insects.
Download or read book Brown Planthopper written by International Rice Research Institute and published by Int. Rice Res. Inst.. This book was released on 1979 with total page 377 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Insect Pests of Cotton written by G. A. Matthews and published by Oxford University Press, USA. This book was released on 1994 with total page 624 pages. Available in PDF, EPUB and Kindle. Book excerpt: The cotton plant; Insects and mites; Pest management.
