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Author: Kristen Erik Tollerup
Publisher:
Published: 2007
Total Pages: 282
ISBN-13:
DOWNLOAD EBOOKAuthor: Kris E. Godfrey
Publisher: UCANR Publications
Published: 2002-06-01
Total Pages: 20
ISBN-13: 9781601073624
DOWNLOAD EBOOKThis booklet contains detailed descriptions to help you identify the mealybugs found in your vineyard. You'll learn how they cause damage and how to take action with suggested biological, cultural, and chemical controls for each species.
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Publisher:
Published: 2008
Total Pages: 1006
ISBN-13:
DOWNLOAD EBOOKAuthor: Noubar J. Bostanian
Publisher: Springer Science & Business Media
Published: 2012-06-26
Total Pages: 511
ISBN-13: 9400740328
DOWNLOAD EBOOKProvides a state-of-the-science overview of arthropods affecting grape production around the world. Vineyard pest management is a dynamic and evolving field, and the contributed chapters provide insights into arthropods that limit this important crop and its products. Written by international experts from the major grape-growing regions, it provides a global overview of arthropods affecting vines and the novel strategies being used to prevent economic losses, including invasive pests affecting viticulture. The book contains reviews of the theoretical basis of integrated pest management, multiple chapters on biological control, current status of chemical control, as well as in-depth and well-illustrated reviews of the major arthropod pests affecting grape production and how they are being managed worldwide. This text will serve as a primary resource for applied entomologists, students, growers, and consultants with interests at the intersection of viticulture and applied entomology.
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Published: 1983*
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DOWNLOAD EBOOKAuthor: Vaughn Martin Walton
Publisher:
Published: 2003
Total Pages: 254
ISBN-13:
DOWNLOAD EBOOKAuthor: Jonathan Scott O'Hearn
Publisher:
Published: 2020
Total Pages: 85
ISBN-13:
DOWNLOAD EBOOKGrapevine leafroll disease (GLD) is the most economically important viral disease in wine grapes (Vitis vinifera L.). In Washington State vineyards, the grape mealybug, Pseudococcus maritimus (Ehrhorn; Hemiptera: Pseudococcidae), is the primary vector of Grapevine Leafroll associated Viruses (GLRaVs) which are the causal agents of GLD. While grape mealybug is a known vector, it was unknown how efficient this vector was at spreading GLD.Rearing laboratory colonies of grape mealybug has proven difficult. Several host plants were tested to determine their suitability for use as an alternate host plants for laboratory colonies of grape mealybug. Of the plants tested, colonies of grape mealybug were successful on pumpkin (Cucurbita pepo cv 'Connecticut field') leaves and vines. Mealybugs were able to develop from the crawler stage, through developmental instars, and adults were able to reproduce viable offspring.In greenhouse transmission bioassays we tested infestations of five and one GLRaV-3 infected grape mealybug crawlers per grapevine (cv. 'Chardonnay') to see if transmission occurred. The five grape mealybug per vine treatment had transmission occurred in six out of the twenty recipient vines by year two. The one grape mealybug per vine treatment had transmission occurred in two out of the twenty recipient vines in both the first and second year tested. Our experiment confirmed an earlier predicted estimate that feeding by a single GLRaV-3 infected grape mealybug had the probability of transmission of 0.10 ℗ł 0.003.Current control recommendations for slowing the spread of GLRaVs include one to two applications of insecticides to reduce vector populations. Systemic insecticides require the insect to feed before death or paralysis occurs. It was unknown if systemic insecticides could paralyze or kill grape mealybug quickly enough to reduce their ability to vector GLRaVs. Hence, we tested imidacloprid, spirotetramat, and flupyradifurone to see if these insecticides would have any effect on grape mealybug's efficiency to vector GLRaV-3 on treated grapevines. We conclude that these systemic insecticides do not convey any additional protection to grapevines. However, these insecticides are still useful for reducing vector populations and indirectly reduce the potential spread of GLRaVs among vines in vineyards.
Author: Baozhong Meng
Publisher: Springer
Published: 2017-07-05
Total Pages: 688
ISBN-13: 3319577069
DOWNLOAD EBOOKThe domestication of grapes dates back five thousand years ago and has spread to nearly all continents. In recent years, grape acreage has increased dramatically in new regions, including the United States of America, Chile, Asia (China and India), and Turkey. A major limiting factor to the sustained production of premium grapes and wines is infections by viruses. The advent of powerful molecular and metagenomics technologies, such as molecular cloning and next generation sequencing, allowed the discovery of new viruses from grapes. To date, grapevine is susceptible to 64 viruses that belong to highly diverse taxonomic groups. The most damaging diseases include: (1) infectious degeneration; (2) leafroll disease complex; and (3) rugose wood complex. Recently, two new disease syndromes have been recognized: Syrah decline and red blotch. Losses due to fanleaf degeneration are estimated at $1 billion annually in France alone. Other diseases including leafroll, rugose wood, Syrah de cline and red blotch can result in total crop loss several years post-infection. This situation is further exacerbated by mixed infections with multiple viruses and other biotic as well as adverse abiotic environmental conditions, such as drought and winter damage, causing even greater destruction. The book builds upon the last handbook (written over twenty years ago) on the part of diagnostics and extensively expands its scope by inclusion of molecular biology aspects of select viruses that are widespread and economically most important. This includes most current information on the biology, transmission, genome replication, transcription, subcellular localization, as well as virus-host interactions. It also touches on several novel areas of scientific inquiry. It also contains suggested directions for future research in the field of grapevine virology.
Author: Omkar Ph.D.
Publisher: Academic Press
Published: 2016-02-03
Total Pages: 764
ISBN-13: 0128032669
DOWNLOAD EBOOKEcofriendly Pest Management for Food Security explores the broad range of opportunity and challenges afforded by Integrated Pest Management systems. The book focuses on the insect resistance that has developed as a result of pest control chemicals, and how new methods of environmentally complementary pest control can be used to suppress harmful organisms while protecting the soil, plants, and air around them. As the world's population continues its rapid increase, this book addresses the production of cereals, vegetables, fruits, and other foods and their subsequent demand increase. Traditional means of food crop production face proven limitations and increasing research is turning to alternative means of crop growth and protection. - Addresses environmentally focused pest control with specific attention to its role in food security and sustainability. - Includes a range of pest management methods, from natural enemies to biomolecules. - Written by experts with extensive real-world experience.
