Cassava Mealybug Interactions
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Author | : Paul-André Calatayud |
Publisher | : IRD Editions |
Total Pages | : 116 |
Release | : 2006 |
Genre | : Cassava |
ISBN | : 9782709916141 |
Most basic information on plant-mealybug interactions during the last decade has come from research on the cassava Manihot esculenta Crantz (Euphorbiaceae) system with two mealybug species, namely Phenacoccus manihoti Matile-Ferrero and Phenacoccus herreni Cox and Williams (Sternorrhyncha: Pseudococcidae). Both these insects cause severe damage to cassava in Africa and South America, respectively. This book reviews these interactions (plant selection by the insects, nutritional requirements
Author | : Fritz Schulthess |
Publisher | : |
Total Pages | : 136 |
Release | : 1987 |
Genre | : |
ISBN | : |
Author | : F. Schulthess |
Publisher | : |
Total Pages | : 136 |
Release | : 1987 |
Genre | : |
ISBN | : |
Author | : International Institute of Tropical Agriculture |
Publisher | : IITA |
Total Pages | : 184 |
Release | : 1990 |
Genre | : Cassava |
ISBN | : 9781310413 |
Intended as both an instructional and a reference tool, the volume covers the production and postharvest treatment of cassava. The first part describes production constraints including pests , diseases, weeds, soils agronomic factors, and socioeconomic considerations. In part two, plant morphology, plant physiology and plant breeding are related to yields and diseases resistance. Part three covers postharvest treatment and part four describes cassava research. A bibliography of recommended reading is included.
Author | : Isaac Ishaaya |
Publisher | : Springer Science & Business Media |
Total Pages | : 412 |
Release | : 2009-08-28 |
Genre | : Science |
ISBN | : 904812316X |
For nearly 50 years, pest control was mostly based on broad-spectrum conv- tional insecticides such as organochlorines, organophosphates, carbamates and pyrethroids. However, the severe adverse effects of pesticides on the environment, problems of resistance reaching crisis proportions and public protests led to stricter regulations and legislation aimed at reducing their use. Ways to reduce the use of synthetic pesticides in plant protection and to use more alternative and novel me- ods for pest control or biorational control are the challenges of pest control for the twenty-first century. The term biorational (biological + rational) pesticides can be defined as the use of specific and selective chemicals, often with a unique modes of action, that are compatible with natural enemies and the environment, with minimal effect on n- target organisms. Biorational control is based on a diversity of chemical, biological and physical approaches for controlling insect pests which results in minimum risk to man and the environment.
Author | : Jacques Brodeur |
Publisher | : Springer Science & Business Media |
Total Pages | : 257 |
Release | : 2007-06-03 |
Genre | : Science |
ISBN | : 1402047673 |
This volume explores modern concepts of trophic and guild interactions among natural enemies in natural and agricultural ecosystems - a field that has become a hot topic in ecology and biological control over the past decade. It is the first book on trophic and guild interactions to make the link to biological control, and is compiled by internationally recognized scientists who have combined their expertise.
Author | : Baozhong Meng |
Publisher | : Springer |
Total Pages | : 688 |
Release | : 2017-07-05 |
Genre | : Science |
ISBN | : 3319577069 |
The 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 | : Ann E. Hajek |
Publisher | : Cambridge University Press |
Total Pages | : 396 |
Release | : 2004-02-12 |
Genre | : Gardening |
ISBN | : 9780521653855 |
Author | : Paula Tennant |
Publisher | : CABI |
Total Pages | : 265 |
Release | : 2015-12-17 |
Genre | : Science |
ISBN | : 1780644264 |
This book describes interactions of plant viruses with hosts and transmission vectors in an agricultural context. Starting with an overview of virus biology, economics and management, chapters then address economically significant plant diseases of tropical and subtropical crops. For each disease, symptoms, distribution, economic impact, causative virus, taxonomy, host range, transmission, diagnostic methods and management strategies are discussed.
Author | : Douglas John Williams |
Publisher | : Oxford University Press, USA |
Total Pages | : 652 |
Release | : 1992 |
Genre | : Nature |
ISBN | : |
History (Background to the studey, scope of the work and collections studied); Economic importance; Morphology; Systematics (relationshisp and classification, definition of the family Pseudococcidae).