The Wheat Curl Mite, Aceria Tulipae Keifer, in Relation to Epidemiology and Control of Wheat Streak Mosaic PDF Download

Author: Harry W. Somsen
Publisher:
ISBN:
Category : Agricultural research
Languages : en
Pages : 24

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Author: Edmon Jacob Kantack
Publisher:
ISBN:
Category :
Languages : en
Pages : 166

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Author: Camila F. de Oliveira
Publisher:
ISBN:
Category : Wheat
Languages : en
Pages : 82

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Book Description
The wheat curl mite (WCM), Aceria tosichella Keifer, transmits a complex of viruses, Wheat streak mosaic virus (WSMV), Triticum mosaic virus (TriMV) and Wheat mosaic virus (WMoV), to wheat, Triticum aestivum, in the Great Plains. Co-infection of wheat by these viruses is frequently observed, increasing disease severity and yield loss. Current genetic work classifies WCM populations into two genotypes, Type 1 and Type 2. It has been shown that different mite genotypes are able to transmit viruses at varying rates. WCM-virus relations are very specific and can impact vector biology. In this study, the primary objective was to determine if co-infection of wheat by WSMV+ TriMV has an impact on each virus transmission rate by the WCM Type 1 and Type 2. An additional objective was to establish the impact of double viral infections on the biology of the mites and virus dispersal in the field. Using a series of transmission studies, it was determined that Type 1 WCMs do not transmit TriMV even in the presence of WSMV. Type 2 WCMs feeding on wheat infected with both viruses, have reduced WSMV transmission when compared to mites feeding on singly inoculated plants. However, TriMV transmission is increased when mites feed on wheat infected by both viruses. Mite counts from the field indicated that mites feeding on WSMV infected plants had the highest populations, followed by the control, WSMV+TriMV and TriMV. In field conditions, WSMV incidence was reduced when Type 2 WCM were exposed to source plants with WSMV+TriMV. TriMV incidence was not different between mites feeding on single or double infected plants. These findings enhance the understanding of WCM virus complex epidemiology.

Author: Maria Salome Escanilla del Rosario
Publisher:
ISBN:
Category :
Languages : en
Pages : 286

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Author: Jorge E. Peña
Publisher: CABI
ISBN: 1845938291
Category : Technology & Engineering
Languages : en
Pages : 460

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Book Description
Invasive arthropods cause significant damage in agricultural crops and natural environments across the globe. Potentially threatened regions need to be prepared to prevent new pests from becoming established. Therefore, information on pest identity, host range, geographical distribution, biology, tools for detection and identification are all essential to researchers and regulatory personnel. This book focuses on the most recent invasive pests of agricultural crops in temperate subtropical and tropical areas and on potential invaders, discussing their spread, biology and control.

Author: Christopher William Brey
Publisher:
ISBN:
Category : Grasses
Languages : en
Pages : 278

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Author: Karl Maramorosch
Publisher: CRC Press
ISBN: 1000304582
Category : Science
Languages : en
Pages : 200

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The adverse impact of plant diseases is felt around the world. In this book, the contributors analyze the nature and origins of pathogens that affect some economically important food and fiber crops.

Author: Peter A. Edde
Publisher: Academic Press
ISBN: 0128196998
Category : Technology & Engineering
Languages : en
Pages : 1004

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Book Description
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

Author: Benjawan Siriwetwiwat
Publisher:
ISBN: 9780542908736
Category : Virus-vector relationships
Languages : en
Pages :

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Author: R.G. Milne
Publisher: Springer Science & Business Media
ISBN: 1468470388
Category : Science
Languages : en
Pages : 431

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Book Description
The original aim of this book was to cover different aspects of the tradi tionally "filamentous" potex-, carla-, poty-, clostero-, and capilloviruses. The title The Filamentous Plant Viruses seemed the only suitable one, but it has led us to discuss also the quite different filamentous viruses of the rice stripe group-recently officially named the tenuivirus group which otherwise, indeed, might not have been conveniently covered in any volume of this series. The question must be asked: What is there new that justifies the presentation of a book of this kind? An outline of the answer may be Among the traditional filamentous viruses, much pro given as follows. gress has been made in elucidating the physical structure of potexvirus particles, and this work serves as an excellent model for discussion of and future experiments on the poty-, carla-, clostero-, and capilloviruses, which have comparable structures, although they are more difficult to manipulate. Work on the structure and strategy of the genomes of poty viruses is, however, relatively advanced and at a very interesting stage. The helper component that assists the aphid transmission of potyviruses has also recently received considerable attention, although the more we know about that, the less seems clear about the aphid transmission of the carlaviruses and closteroviruses, which apparently neither possess nor require a helper component.