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Author: Sarwan Kumar
Publisher:
ISBN:
Category : Electronic books
Languages : en
Pages : 0
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Book Description
Aphids are important herbivores and important pest of many field and forest crops. They have specialized long and flexible stylets which are adapted to feeding on phloem sap. To establish successful feeding on host plant, they need to counter a range of both physical and chemical defenses. The defenses employed by plants can have direct effect on the aphid species through difficulty in establishing successful feeding due to the presence of trichomes, thick cell wall, etc. or effect on their biology with lethal consequences in extreme cases (direct defenses). In contrast to this, plants can attract natural enemies of aphids through the release of volatile compounds (the so-called ,Äúcry or call for help,Äù) (indirect defense). The information on different defense strategies employed by plants can be utilized to enhance the level of resistance (R) to develop sustainable pest management strategies.
Author: Sarwan Kumar
Publisher:
ISBN:
Category : Electronic books
Languages : en
Pages : 0
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Book Description
Aphids are important herbivores and important pest of many field and forest crops. They have specialized long and flexible stylets which are adapted to feeding on phloem sap. To establish successful feeding on host plant, they need to counter a range of both physical and chemical defenses. The defenses employed by plants can have direct effect on the aphid species through difficulty in establishing successful feeding due to the presence of trichomes, thick cell wall, etc. or effect on their biology with lethal consequences in extreme cases (direct defenses). In contrast to this, plants can attract natural enemies of aphids through the release of volatile compounds (the so-called ,Äúcry or call for help,Äù) (indirect defense). The information on different defense strategies employed by plants can be utilized to enhance the level of resistance (R) to develop sustainable pest management strategies.
Author: Ernesto Prado C.
Publisher:
ISBN: 9789054857563
Category : Aphididae
Languages : en
Pages : 111
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Book Description
Author: Kerry F. Harris
Publisher: Elsevier
ISBN: 1483273881
Category : Nature
Languages : en
Pages : 576
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Book Description
Aphids as Virus Vectors focuses on aphids as vectors of plant viruses and the fundamentals of their relationship with virus and host. The mouthparts and feeding mechanism of aphids are discussed, along with aphid penetration of plant tissues and the transmission mechanisms of aphids as virus vectors. The intrinsic properties and taxonomy of aphid-borne viruses are also examined. Comprised of 22 chapters, this book begins with an overview of the importance of aphids as vectors, their biology, and the properties of the viruses they transmit. These introductory chapters prepare the reader for later ones on aphid-virus-plant interactions. The next section deals with transmission mechanisms, with emphasis on several novel alternatives to many of the traditionally held concepts of how aphids transmit viruses. Accessory factors in non-persistent virus transmission are considered. Subsequent chapters focus on technological advances in aphid-virus research, including the use of aphid cell culturing, radioisotope methodology, membrane feeding, and electrical measurement systems. The most promising frontiers in epidemiological and control-oriented research are discussed in the last two sections. This monograph will be a useful resource for researchers from such varied sciences as entomology, plant science, and virology, as well as for graduate students taking entomology and plant pathology courses on insects in relation to plant diseases.
Author: Russell K. Campbell
Publisher: Elsevier Publishing Company
ISBN:
Category : Science
Languages : en
Pages : 396
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Book Description
The great majority of the contributions to be found in this volume result from oral presentations given at a symposium during the XVIII International Congress of Entomology entitled Mechanisms of Aphid-Plant Genotype Interactions, which was held in Vancouver, Canada in July, 1988. Aphids represent a vast and diverse assemblage of insects. Among these are many of great economic importance by virtue of their detrimental effects to important crop or ornamental plants. Even those aphids having little or no economic impact, or that cause no damage to their hosts except nutrient removal, may yet be of great theoretical interest in that their often intimate association with their hosts provides excellent systems for the study of the evolution of adaptation. Other factors, such as environmental influences, and associations with pathogenic, saprophytic, or symbiotic microorganisms, may play an influential role in modifying the ultimate outcome of aphid-plant interactions. Substantive future progress towards the elucidation of these processes can only be expected if much greater understanding is obtained of the interactions of all the organisms involved in the plant based community.
Author: Andreas Vilcinskas
Publisher: CRC Press
ISBN: 1482236788
Category : Nature
Languages : en
Pages : 282
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Book Description
Most people know of aphids as garden pests, infesting the soft green tissues of plants in vast numbers and killing them by sucking out the sap. Indeed, among the 4000 or so known species of aphids about 250 are pests, and in temperate regions several are economically important agricultural pests that damage crops directly during feeding or act as v
Author: Clare Elizabeth Couldridge
Publisher:
ISBN:
Category :
Languages : en
Pages : 284
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Book Description
Author: Helmut F van Emden
Publisher: CABI
ISBN: 1780647093
Category : Technology & Engineering
Languages : en
Pages : 716
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Book Description
Aphids are among the major global pest groups, causing serious economic damage to many food and commodity crops in most parts of the world. This revision and update of the well-received first edition published ten years ago reflects the expansion of research in genomics, endosymbionts and semiochemicals, as well as the shift from control of aphids with insecticides to a more integrated approach imposed by increasing resistance in the aphids and government restrictions on pesticides. The book remains a comprehensive and up-to-date reference work on the biology of aphids, the various methods of controlling them and the progress of integrated pest management as illustrated by ten case histories.
Author: A. K. Minks
Publisher:
ISBN:
Category : Aphididae
Languages : en
Pages : 336
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Book Description
Author: D.C. Peters
Publisher:
ISBN:
Category :
Languages : en
Pages : 335
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Book Description
Author:
Publisher:
ISBN:
Category : Aphididae
Languages : en
Pages : 335
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Book Description
