Chemical Control of White Mold in Peanuts and Lesser Cornstalk Borer Evaluation (1980). PDF Download
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Author: J.R. Weeks
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author: J.R. Weeks
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Author: J.R. Weeks
Publisher:
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Category :
Languages : en
Pages :
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Author: Rodney Lee Sams
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Category : Insecticides
Languages : en
Pages : 10
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Author: John Carlton French
Publisher:
ISBN:
Category :
Languages : en
Pages : 80
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Book Description
A study was conducted in Georgia between April 1968, and Septermber 1970, to determine the magnitude and scope of the lesser cornstalk borer, Elasmopalpus lignosellus (Zeller), problem on peanuts in Georgia, the relationship of moisture to the problem, and to develop a chemical control. A survey was conducted among country agents to elicit information on the importance of the insect as a pest of peanuts in 1967 and 1968. Field observations were made during earch of the three production seasons covered by this study to determine types of damage and environmental conditions related to damaging infestations. A laboratory study was conducted to determine the effect of air dried, wilting percent and field capacity soil moisture levels on the duration of the larval-pupal stages. Five chemical control test were conducted; two were artificially infested, and three were conducted against naturally occurring populations. The survey revealed that the lesser cornstalk borer was usually ranked as one of the three most important pests of peanuts by county agents. In 1967, damage to peanuts by the insect was estimated at almost 5 million dollars and in l968, the estimated loss was 8.5 million dollars. Field observations revealed that all parts of the peanut plant were fed upon by the borer, but pag and damage were apparently of greatest economic importance. Damaging infestations were always associated with periods of moisture deficity and were most often found on light, sandy soils. Rearing the insect on soil.....................
Author: Walter Holland Cunningham
Publisher:
ISBN:
Category :
Languages : en
Pages : 94
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Author: University of Florida. College of Engineering
Publisher:
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Category : Engineering
Languages : en
Pages : 592
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Category : Forest nurseries
Languages : en
Pages : 198
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Author: N. Kokalis-Burelle
Publisher: American Phytopathological Society
ISBN:
Category : Science
Languages : en
Pages : 130
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Book Description
Compendium of Peanut Diseases, Second Edition is a guide to the identification, diagnosis, and control of peanut diseases and disorders. Bringing together color photographs and authoritative information in a single volume, this convenient compendium is a valuable resource for peanut growers and crop consultants around the world.This compendium has become a standard guidebook for the peanut industry. The contributors are an international group that includes 50 peanut experts from the United States, India, The Peoples Republic of China, Malawi, Australia, Israel, and South Africa. They offer advice on diseases and disorders found in each of the world's major peanut-growing regions.Detailed descriptions of 55 peanut diseases are the core of the book. Covering diseases caused by fungi, bacteria, nematodes, and viruses, these descriptions present detailed information on symptoms, causal organisms, disease cycle, control, host range, transmission, detection, and epidemiology. In addition to diseases, the compendium also describes peanut disorders caused by environmental stress, insects and arthropods, and parasitic flowering plants. Other sections of the compendium cover beneficial organisms, organisms with an undetermined relationship to peanuts, disease management strategies, genetic modification, and a listing of disease and insect resistant cultivars currently available for use by growers and breeders.
Author: Lukman Abdulra'Uf
Publisher: BoD – Books on Demand
ISBN: 9535134574
Category : Science
Languages : en
Pages : 292
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Aflatoxins are a group of highly toxic and carcinogenic substances, which occur naturally, and can be found in food substances. Aflatoxins are secondary metabolites of certain strains of the fungi Aspergillus flavus and A. parasiticus and the less common A. nomius. Aflatoxins B1, B2, G1, and G2 are the most important members, which can be categorized into two groups according to the chemical structure. As a result of the adverse health effects of mycotoxins, their levels have been strictly regulated especially in food and feed samples. Therefore, their accurate identification and determination remain a Herculean task due to their presence in complex food matrices. The great public concern and the strict legislation incited the development of reliable, specific, selective, and sensitive analytical methods for pesticide monitoring that are discussed in this book.
Author: M. Kogan
Publisher: Springer Science & Business Media
ISBN: 1461299985
Category : Science
Languages : en
Pages : 597
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Book Description
Insects as a group occupy a middle ground in the biosphere between bacteria and viruses at one extreme, amphibians and mammals at the other. The size and gen eral nature of insects present special problems to the student of entomology. For example, many commercially available instruments are geared to measure in grams, while the forces commonly encountered in studying insects are in the mil ligram range. Therefore, techniques developed in the study of insects or in those fields concerned with the control of insect pests are often unique. Methods for measuring things are common to all sciences. Advances sometimes depend more on how something was done than on what was measured; indeed a given field often progresses from one technique to another as new methods are discovered, developed, and modified. Just as often, some of these techniques fmd their way into the classroom when the problems involved have been suffici ently ironed out to permit students to master the manipulations in a few labo ratory periods. Many specialized techniques are confined to one specific research laboratory. Although methods may be considered commonplace where they are used, in another context even the simplest procedures may save considerable time. It is the purpose of this series (1) to report new developments in methodology, (2) to reveal sources of groups who have dealt with and solved particular entomological problems, and (3) to describe experiments which might be applicable for use in biology laboratory courses.
