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Epidemiology and Fungicide Sensitivity of Grape Late Season Bunch Rots in the Mid-Atlantic.

紀錄類型:	書目-語言資料,手稿 : Monograph/item
正題名/作者:	Epidemiology and Fungicide Sensitivity of Grape Late Season Bunch Rots in the Mid-Atlantic./
作者:	Cosseboom, Scott David.
面頁冊數:	1 online resource (194 pages)
附註:	Source: Dissertations Abstracts International, Volume: 84-03, Section: B.
Contained By:	Dissertations Abstracts International84-03B.
標題:	Agronomy. -
電子資源:	click for full text (PQDT)
ISBN:	9798351450087

Epidemiology and Fungicide Sensitivity of Grape Late Season Bunch Rots in the Mid-Atlantic.
Cosseboom, Scott David.

Epidemiology and Fungicide Sensitivity of Grape Late Season Bunch Rots in the Mid-Atlantic. - 1 online resource (194 pages)

Source: Dissertations Abstracts International, Volume: 84-03, Section: B.

Thesis (Ph.D.)--University of Maryland, College Park, 2022.

Includes bibliographical references

This project aims to improve the management of late season bunch rots of grape (LSBR) which can be caused by a wide range of fungal pathogens. LSBR collectively have been an increasing issue in Mid-Atlantic vineyards, severely affecting grape yield and quality. Despite intensive fungicide spray programs and cultural practices, severe LSBR epidemics threaten the budding Mid-Atlantic wine industry. The basic plant pathological variables of host, pathogen, and environment were investigated to improve knowledge of the diseases involved, and therefore improve management strategies. The most common causal agents of LSBR in the Mid-Atlantic were found to be Botrytis cinerea and Colletotrichum spp. and the species identity of less common fungi was also investigated. The next most prevalent fungi associated with LSBR, Alternaria alternata, Aspergillus uvarum, and Neopestalotiopsis rosae were evaluated for pathogenicity in field experiments through the artificial inoculation of grape clusters. Second, the sensitivity of A. uvarum, B. cinerea, and N. rosae to commonly used chemical classes of fungicides was tested. Lastly, the optimal infection conditions and timing for Colletotrichum spp. were evaluated in laboratory, field, and greenhouse experiments, resulting in a quantitative inoculum tracking technique and a disease prediction model. These experiments were focused on solving practical and important disease management issues experienced by local grape growers, while conducting novel research that was applicable to the broader science community. Beyond the increased knowledge of the etiology and epidemiology of LSBR, the conclusions of this research could lead to reformed LSBR management strategies with the elimination of unnecessary and ineffective fungicide applications, increased accuracy and timing of management efforts, and increased marketable grape yield.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2024

Mode of access: World Wide Web

ISBN: 9798351450087Subjects--Topical Terms:

1027735
Agronomy.
Subjects--Index Terms:

BotrytisIndex Terms--Genre/Form:

554714
Electronic books.

Epidemiology and Fungicide Sensitivity of Grape Late Season Bunch Rots in the Mid-Atlantic.
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