The World's Worst Weeds


Book Description

For each of the important weed species we have attempted in these pages to present a summary of the world distribution, the known biology, and the agricultural importance. A line drawing and a description is included for each species, as well as a list of common names used in the countries where the weed is troublesome.







The World's Worst Weeds


Book Description

In 1990, while Vince Smith was working as a senior keeper at Chester Zoo, a newborn chimpanzee in his care was abandoned by her mother. Named Sophie, the baby chimp was taken home and hand-reared by Vince and his wife. Six months later another new baby arrived: Oliver, their son.




World Weeds


Book Description

Responsible for a high proportion of the world's crop losses, weedstake away food that the world badly needs. They decrease thequality and quantity of vegetable fibers, wool, and hides, andinterfere with fishing, irrigation, hydroelectric power production,and the movement of shipping vessels. In order to recognize thetrue magnitude of the weed problem, and to be better equipped todesign effective weed control methods, it is vital to identify andlearn as much as possible about the many different species of thisdestructive agricultural predator. The culmination of four decades of global research, World Weedspresents comprehensive and up-to-date information on over 100weeds--addressing recent changes in such areas as crop tillagemethods, herbicide use, and agricultural runoff. This monumentalwork, featuring a wealth of original data from the authors,provides extensive coverage of the known biology of each species.Each entry contains a full botanical description, plus importantdetails on habitat requirements and distribution, seed production,ecology, physiology, crop impact, and more. Generously suppliedwith dozens of unique illustrations and species distribution mapscovering over 100 countries, this definitive resource boasts anextensive multilingual index of common names, and a massivebibliography with over 3,000 references to facilitate furtherreading and research. World Weeds is a truly masterful referencethat will be celebrated by weed and crop scientists, botanists, andothers for years to come.




Worlds' Worst Weed (salvinia)


Book Description

Distribution of Salvinia; depletion of water resources and hindrance to water use by Salvinia; Environmental impact of Salvinia; control of Salvinia; Utilisation of Salvinia; Anaerobic digestion; Feasibility studies on Salvinia for energy production; Effect of weed: Water ratio on bio-gas production from Salvinia; Effect of temperature On biogas production from aquatic fern Salvinia; Bio-energy potential of eight common aquatic weeds; Survivability and growth of Salvinia molesta (Mitchell) over water treated with heavy metals and subsequent utilisation of the harvested weeds for energy (Bio-mass) production; Use of aquatic weed Salvinia As full/ partial feed in commercial bio-gas disasters; Design and performance elevation of a fern shredder; Studies on multiphase Anaerobic digestion of aquatic weed Salvinia; Productivity (Net primary production) in natural waters.










Biology and Management of Problematic Crop Weed Species


Book Description

Weeds are the main biological constraint to crop production throughout the year. Uncontrolled weeds could cause 100% yield loss. In Australia, the overall cost of weeds to Australian grain growers was estimated at AU$ 3.3 billion annually. In terms of yield losses, weeds amounted to 2.7 million tonnes of grains at a national level. In the USA, weeds cost US$ 33 billion in lost crop production annually. In India, these costs were estimated to be much higher (US$ 11 billion). These studies from different economies suggest that weeds cause substantial yield and economic loss. Biology and Management of Problematic Weed Species details the biology of key weed species, providing vital information on seed germination and production, as well as factors affecting weed growth. These species include Chenopodium album, Chloris truncata and C. virgate, Conyza bonariensis and C. canadensis, Cyperus rotundus, and many more. This information is crucial for researchers and growers to develop integrated weed management (IWM) strategies. Written by leading experts across the globe, this book is an essential read to plant biologists and ecologists, crop scientists, and students and researchers interested in weed science. Provides detailed information on the biology of different key weed species Covers weed seed germination and emergence Presents the factors affecting weed growth and seed production




Weeds in My Garden


Book Description

"The weeds are arranged by family because the author, a retired botany professor, cannot resist trying to turn other people into botanists, and it helps to know something about a plant's relatives. In the mode of his sixteenth-century forebear John Gerard, Charles Heiser discusses each weed according to The Name, common and scientific, The Time and Place, of flowering, and from where the plant originally came, The Description, and The Virtues, in which he relates fascinating weedy tales in a witty, conversational style.".




Handbook of Weed Management Systems


Book Description

This work provides the fundamental information necessary for the development of weed management strategies for all the major US crops using concepts that can be applied worldwide. Weed management systems are provided for cotton, peanut, soybean, wheat, barley, oat, sorghum, rice, fruits, nut crops, and more. The dynamics involved in creating the best management approaches for specific types of crops are explained.