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Author: Matthew Peill
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
In 2012 there was an outbreak of strawberry decline disease (SDD) in Nova Scotia, resulting in crop failure. The disease was caused by Strawberry mild yellow edge virus (SMYEV) and Strawberry mottle virus (SMoV), and vectored by the aphid, Chaetosiphon fragaefolii. I nfected fields were tilled under and a provincial strawberry aphid and virusmonitoring program was implemented in Nova Scotia. New virus infections continued to occur leading to the hypothesis that there could be inoculum outside of infected fields. Fragaria and Potentilla species are known alternative host species of C. fragaefolii, and are suspected reservoirs of viruses. A new virus, Strawberry polerovirus 1 (SPV1), was identified during the outbreak. It is hypothesized that SPV1 aids in the transmission of SMYEV and vectored by C. fragaefolii. Aphid, alternative host, and virus surveys were conducted at six field sites throughout the Annapolis Valley of Nova Scotia, and worked related to the SPV1 transmission experiment was conducted in laboratory and greenhouse settings. Aphid surveys found C. fragaefolii was the dominant colonizing species in the field, but only represented a small minority of alate aphids collected from pan traps. We determined that pan traps samples are more representative of what aphid species are present in the surrounding environment, and leaf sampling is still necessary to determine what species are colonizing a host crop. From the alternative host study, Fragaria and Potentilla only had low numbers of C. fragaefolii, and wild Fragaria species were infected with SMYEV and SPV1, but no virus infections were found from Potentilla species. We determined that alternative hosts do not act as significant reservoirs of SDD. Implementing different production systems and shorter cropping cycles could significantly reduce the risks associated with SDD. The SPV1 transmission experiment was not completed due to continued issues with confirming virus infections in daughter plants produced from virus infected mother plants. Research still needs to be completed to experimentally demonstrate that SPV1 is transmitted by C. fragaefolii, and determine its role in the SDD complex.
Author: Matthew Peill
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
In 2012 there was an outbreak of strawberry decline disease (SDD) in Nova Scotia, resulting in crop failure. The disease was caused by Strawberry mild yellow edge virus (SMYEV) and Strawberry mottle virus (SMoV), and vectored by the aphid, Chaetosiphon fragaefolii. I nfected fields were tilled under and a provincial strawberry aphid and virusmonitoring program was implemented in Nova Scotia. New virus infections continued to occur leading to the hypothesis that there could be inoculum outside of infected fields. Fragaria and Potentilla species are known alternative host species of C. fragaefolii, and are suspected reservoirs of viruses. A new virus, Strawberry polerovirus 1 (SPV1), was identified during the outbreak. It is hypothesized that SPV1 aids in the transmission of SMYEV and vectored by C. fragaefolii. Aphid, alternative host, and virus surveys were conducted at six field sites throughout the Annapolis Valley of Nova Scotia, and worked related to the SPV1 transmission experiment was conducted in laboratory and greenhouse settings. Aphid surveys found C. fragaefolii was the dominant colonizing species in the field, but only represented a small minority of alate aphids collected from pan traps. We determined that pan traps samples are more representative of what aphid species are present in the surrounding environment, and leaf sampling is still necessary to determine what species are colonizing a host crop. From the alternative host study, Fragaria and Potentilla only had low numbers of C. fragaefolii, and wild Fragaria species were infected with SMYEV and SPV1, but no virus infections were found from Potentilla species. We determined that alternative hosts do not act as significant reservoirs of SDD. Implementing different production systems and shorter cropping cycles could significantly reduce the risks associated with SDD. The SPV1 transmission experiment was not completed due to continued issues with confirming virus infections in daughter plants produced from virus infected mother plants. Research still needs to be completed to experimentally demonstrate that SPV1 is transmitted by C. fragaefolii, and determine its role in the SDD complex.
Author: Matthew Peill
Publisher:
ISBN:
Category : Strawberries
Languages : en
Pages : 0
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Book Description
![Examination of the Resistance in the Wild Beach Strawberry, Fragaria Chiloensis (L.) to the Stawberry [i.e. Strawberry] Aphid, Chaetosiphon Fragaefolii (Cockerell) PDF](https://books.google.com/books/content/images/frontcover/VkiLNwAACAAJ?fife=w80-h100)
Author: Patricia Anne McKay
Publisher:
ISBN:
Category : Aphids
Languages : en
Pages : 134
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Book Description
Author: George Albert Schaefers
Publisher:
ISBN:
Category : Pentatricopus fragaefolii
Languages : en
Pages : 400
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Book Description
Author: John Edward Crock
Publisher:
ISBN:
Category : Aphids
Languages : en
Pages : 134
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Book Description
Author: George A. Schaefers
Publisher:
ISBN:
Category : Aphids
Languages : en
Pages : 39
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Book Description
Author: Roger H. Broadley
Publisher:
ISBN:
Category : Gardening
Languages : en
Pages : 76
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Book Description
" ... An illustrated guide to identifying and managing these strawberry pests in Queensland."--Back cover
Author: Jamin Ali
Publisher: CRC Press
ISBN: 1000996778
Category : Nature
Languages : en
Pages : 156
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Book Description
Considered as economically significant pests with worldwide distribution, aphids feed on hundreds of cultivated and ornamental plants and cause considerable economic loss on a global scale. The peach-potato aphid, Myzus persicae, is one of the most severe model aphid pests and successfully colonizes hundreds of plant species from 40 different families. It is a complex aphid pest known for its high reproductive rate, biotype formation, suppression of plant defenses, and wide range of host plants. This book covers ecological aspects - including life cycle, damage, and host range - which make aphids an economically important pest. A wide range of topics are covered, including ecological aspects of M. persicae; challenges with management approaches; damage; suppression of plant defenses; evolution; the mechanism of resistance against major classes of insecticides; the potential of biological control and natural plant-derived compounds (plant defense elicitors) as an alternative to the use of synthetic chemical insecticides to control M. persicae; and integrated pest management for M. persicae. As the peach-potato aphid is a model aphid pest, studying it helps to develop control strategies against the entire group of aphids. Written for professionals, as well as students, teachers, and researchers in the fields of entomology, ecology, and bioscience, this book is an enriching new addition to its field.
Author: H. Eric L. Maw
Publisher: NRC Research Press
ISBN: 9780660181653
Category : Science
Languages : en
Pages : 234
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Book Description
Toutes les espèces d'hémiptères (y compris les homoptères) signalées au Canada et en Alaska sont recensées dans cette publication. L'information comprend aussi des données de répartition par territoire politique.
Author: David V. Alford
Publisher: CRC Press
ISBN: 1482262614
Category : Nature
Languages : en
Pages : 256
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Book Description
CHOICE Highly recommended 2020 Insects are key components of life on our planet, and their presence is essential for maintaining balanced terrestrial ecosystems. Without insects humans would struggle to survive, and on a world scale food production would be severely compromised. Many plants and animals depend directly or indirectly on insects for their very survival, and this is particularly so in the case of insectivorous birds and other such creatures. The beneficial role of insects is often overlooked or misunderstood, and in farming circles their very presence on crops is often seen to be unwelcome. In reality, however, many insects are genuinely beneficial, as in the case of parasitic and predacious species. The use of chemical pesticides to control crop pests is becoming more tightly regulated and environmentally undesirable, and low-input farming, in which natural enemies of pests are encouraged to survive or increase, is becoming far more prevalent. Accordingly, Integrated Pest Management (IPM) and Integrated Pest Management (ICM) strategies are increasingly being developed, advocated and adopted. Features: Highlights information on many groups of insects and mites that act as natural enemies or biological control agents of phytophagous insects and mites, including plant pests. Profusely illustrated with high-quality colour photographs. Focuses mainly on insects and mites as natural enemies of plant pests, including parasitic and predacious species that have been accidentally or deliberately introduced in classical biological control programmes. Reviews the role of phytophagous European insects and mites in controlling or managing European plants that have become invasive weeds in other parts of the world, notably North America, Australia and New Zealand.
