Methods For Large Scale Rearing Of Tobacco Budworm
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Methods For Large Scale Rearing Of The Tobacco Budworm
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Author : J. R. Raulston
language : en
Publisher:
Release Date : 1972
Methods For Large Scale Rearing Of The Tobacco Budworm written by J. R. Raulston and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1972 with Heliothis zea categories.
Methods For Large Scale Rearing Of The Tobacco Budworm Classic Reprint
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Author : J. R. Raulston
language : en
Publisher: Forgotten Books
Release Date : 2018-03-18
Methods For Large Scale Rearing Of The Tobacco Budworm Classic Reprint written by J. R. Raulston and has been published by Forgotten Books this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-03-18 with Science categories.
Excerpt from Methods for Large-Scale Rearing of the Tobacco Budworm Although Heliothis spp. Have been reared in the laboratory for many years, few attempts have been made to produce them on a large scale. The most notable work on this has been that of Burton Burton and Cox and Burton and Harrell (4) 2 These researchers de scribed methods whereby procedures normally used for maintaining small laboratory cultures were automated to increase production. 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.
Methods For Large Scale Rearing Of Tobacco Budworm
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Author :
language : en
Publisher:
Release Date : 1972
Methods For Large Scale Rearing Of Tobacco Budworm written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1972 with Heliothis zea categories.
Methods For Large Scale Rearing Of The Tobacco Budworm
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Author : J. R. Raulston
language : en
Publisher:
Release Date : 1972
Methods For Large Scale Rearing Of The Tobacco Budworm written by J. R. Raulston and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1972 with Heliothis zea categories.
Large Scale Shipping Techniques For Tobacco Budworm Pupae
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Author :
language : en
Publisher:
Release Date : 1976
Large Scale Shipping Techniques For Tobacco Budworm Pupae written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1976 with Heliothis zea categories.
Large Scale Shipping Techniques For Tobacco Budworm Pupae
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Author : J. R. Raulston
language : en
Publisher:
Release Date : 1976
Large Scale Shipping Techniques For Tobacco Budworm Pupae written by J. R. Raulston and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1976 with Heliothis zea categories.
A Mass Rearing Technique And Dosage Mortality Data On The Bollworm Heliothis Zea And The Tobacco Budworm Heliothis Virescens In Oklahoma
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Author : Peter Delano Lingren
language : en
Publisher:
Release Date : 1964
A Mass Rearing Technique And Dosage Mortality Data On The Bollworm Heliothis Zea And The Tobacco Budworm Heliothis Virescens In Oklahoma written by Peter Delano Lingren and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1964 with categories.
Production Research Report
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Author :
language : en
Publisher:
Release Date : 1970
Production Research Report written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1970 with Agriculture categories.
Technical Bulletin
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Author :
language : en
Publisher:
Release Date : 1981
Technical Bulletin written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1981 with Agricultural extension work categories.
Techniques For Efficient Mass Rearing And Infestation In Screening For Host Plant Resistance To Corn Earworm Heliothis Zea
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Author : John A. Mihm
language : en
Publisher:
Release Date : 1982
Techniques For Efficient Mass Rearing And Infestation In Screening For Host Plant Resistance To Corn Earworm Heliothis Zea written by John A. Mihm and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1982 with Corn categories.
The practice of growing varieties, lines or hybrids resistant to attack by insects, and their subsequenty effectiveness in reducing pest populations and corresponding crop losses, is well documented for several agricultural crops and pest species. The development of many of these resitant cultivars has resulted from or been facilitated by many years of study of the insect pests, the development of techniques to mass rear the insects, artificially infest the crop species, and screen the germplasm of the species (or their wild relatives) for resistance, and the successful application of appropriate breending procedures for improvement of the resistance characteristic over succeeding cycles or generations of population improvement (Guthrie, 1974, 1980). The basic components necessary to identify or developed germaplasm with resitance, or with higher levels of resistance than present cultivars utilized by farmer/producers, include: (1) A colony of the insect species, which exhibits the vigor and vitality of the damaging pest population within the geographical area that is affected. (2) The capability to efficiently mass culture the species, including the rearing facility, trained personnel, natural, meridic, or defined diets, and rearing procedures and containers. (3) Germaplasm resources that area representative of the genetic variation within the crop and/or its closely related species. (4) Methods for uniform artificial infestation. (5) Methods for assessing resultant damage, or lack of damage, to the plants subjected to deliberate infestation (rating scales to determine classes or categories of resistance or susceptibility). (6) Screening to determine whether adequate levels of resistance exist within suitable agronomic types (equivalent or better than currently grown cultivars), and effective selection/breeding scheme established to improve either the resistance levels or agronomic characteristics of the "improved" materials.