Author :
Publisher : Food & Agriculture Org.
Page : 60 pages
File Size : 24,28 MB
Release :
Category :
ISBN : 9251385599
Author :
Publisher : Food & Agriculture Org.
Page : 60 pages
File Size : 24,28 MB
Release :
Category :
ISBN : 9251385599
Author : Paul Dangerfield
Publisher : CSIRO PUBLISHING
Page : 264 pages
File Size : 25,4 MB
Release : 2001-12-01
Category : Science
ISBN : 0643102442
Parasitic wasps of the genus Scelio play an important role in the regulation of orthopteran populations and are implicated in suppressing numbers of numerous pest locusts and grasshoppers. This landmark volume provides a full taxonomic treatment of the sixty species of Scelio found on the Australian continent and reviews in detail the biology and ecology and host relationships of Scelio on a worldwide basis. Taking an international perspective, the text outlines our current knowledge on topics such as host finding, population biology, and methods and techniques for collection and study in the field. The use of Scelio as biological control agents is discussed and comprehensive checklists document the recorded host relationships of each known species worldwide. There is a full taxonomic revision of all Australian species of Scelio, half of which are newly described. Each species description is complemented with high-quality line drawings, micrographs and distribution maps. In addition, an illustrated key to species enables easy identification of species by non-taxonomists. Biology, Ecology and Systematics of Australian Scelio provides wasp taxonomists, researchers of orthoptera and biological control workers with a basis for detailed studies elsewhere on this economically important group of insects.
Author : Dennis S. Hill
Publisher : Springer Science & Business Media
Page : 708 pages
File Size : 46,60 MB
Release : 2008-07-16
Category : Science
ISBN : 1402067380
This is a textbook providing basic data about the crop pests and the damage they inflict throughout the tropics and sub-tropics. Each major pest is illustrated by either a line drawing or a photograph, and sometimes the damage can also be seen. A world distribution map is provided for each species. Control measures tend to be general rather than very specific. Most of the pests are insects and mites, but some nematodes, molluscs, birds and mammals are included.
Author : Lyman Entomological Museum and Research Laboratory
Publisher :
Page : 306 pages
File Size : 38,12 MB
Release : 1990
Category : Entomology
ISBN :
Author : Dennis S. Hill
Publisher : Cambridge University Press
Page : 764 pages
File Size : 33,72 MB
Release : 1987-10-22
Category : Technology & Engineering
ISBN : 9780521288675
Author : D. S. Hill
Publisher : CUP Archive
Page : 682 pages
File Size : 26,97 MB
Release : 1987-05-28
Category : Science
ISBN : 9780521240130
This handbook is a companion to Agricultural Insect Pests of the Tropics and their Control (2nd Edition 1983) and, like the earlier book, it is designed as a source of reference about most of the major insect and mite pests of agricultural crops. These two volumes by the same author now present a world-wide coverage of the economically important insect pests of tropical and temperate agriculture. Students taking courses in entomology, agriculture, crop pest biology and crop protection, and professional workers concerned with identification and control of insect pests, will find this comprehensive account an indispensable handbook and source of reference.
Author : United States. Department of Commerce. Office of Technical Services
Publisher :
Page : 216 pages
File Size : 26,81 MB
Release : 1978
Category :
ISBN :
Author : Boris Petrovich Uvarov
Publisher :
Page : 632 pages
File Size : 12,85 MB
Release : 1966
Category : Grasshoppers
ISBN :
Author :
Publisher :
Page : 708 pages
File Size : 36,2 MB
Release : 1990
Category : Entomology
ISBN :
Author : Jenifer Huang McBeath
Publisher : Springer Science & Business Media
Page : 316 pages
File Size : 42,38 MB
Release : 2010-03-25
Category : Technology & Engineering
ISBN : 140209180X
Abstract This chapter defines food security as the condition reached when a nation’s population has access to sufficient, safe, and nutritious food to meet its dietary needs and food preferences. It stresses China’s importance to global food security because of its population size. The chapter introduces the contents of the volume and then treats briefly food security in ancient and dynastic (211 bc–1912) China. It examines environmental stressors, such as population growth, natural disasters, and insect pests as well as imperial responses (for example, irrigation, flood control, storage and transportation systems). The chapter also briefly int- duces the Republican era (1912–1949) and compares environmental stressors and government responses then to those of the imperial period. Keywords Food system • Food security • Food production regions • Environmental stressors (Population growth • Natural disasters • Insect pests and Plant diseases • Deforestation • Climate change) • Irrigation systems • Flood control • Grand Canal 1. 1 The Problem of Food Security and Environmental Change Food is the material basis to human survival, and in each nation-state, providing a system for the development, production, and distribution of food and its security is a primary national objective. Many forces have influenced the food security of peoples since ancient times, with particular challenges from natural disasters (floods, famines, drought, and pestilence) and growing populations globally.