Crop Loss Assessment In Rice

Crop loss assessment: background, rationale, and concepts; Component technology for crop loss assessment; Applications of pest and loss assessment technology to pest management.

Rationale and concepts of crop loss assessment for improving pest management and crop protection. Measurement of disease and pathogens. Measurement of insect pest populations and injury. Modeling of crop growth and yield for loss assessment. Disease progress curves, their mathematical description and analysis to formulate predictors for loss equations. Sampling theory and protocol for insects. Methods of field data collection and recording in experiments and surveys. Generating the database for disease-loss modeling. Methods of generating different levels of disease epidemics in loss experiments. Methods of studying the relation between different insect population levels, damage and yield in experiments and surveys. Quantifying the relationship between disease intensity and yield loss. Quantifying the relationship between insect populations, damage, yield and economic thresholds. Empirical models for predicting yield loss caused by a single disease. Empirical models for predicting yield loss caused by one type of insect: the stem borers. The use of principal components analysis and cluster analysis in crop loss assessment. A mechanistic approach to yield loss assessment based on crop physiology. The systems approach to pest management. The concept of thresholds: warning, action and damage thresholds. The role of predictive systems in disease management. Economics of integrated pest control. Analysis of decision making in pest management. Pest surveiliance systems in the USA - a case study using the Michigan State crop monitoring system (CCMS). Crop loss assessment in a practical integrated pest control program for tropical Asian rice. A computer-based decision aid for managing bean rust. The siratac system for cotton pest management in Australia.

Introduction and overview of conclusions; Pest-related yield losses in rice: reality and perceptions; Crop protection technologies; A profile of pesticide use for rice; Choice of crop protection technologies under risk: an expected utility maximization framework; Pesticide exposure, farmers' health, and choice of pest control technologies; IPM implementation in the Philippines: a policy overview; Regulating pesticide use in Philippine agricultural production: some policy considerations.

Crop losses today, profit tomorrow: an approach to quantifying production constraints and to measuring progress; Structural components of a crop loss programme; Crop loss terminology.

Due to the worldwide importance of rice as a crop plant, the biology of rice pests is of great interest to agricultural research. This timely book brings together contributions from the fields of entomology, agronomy, population ecology, and biostatistics to provide a comprehensive survey of rice-insect interaction. Among the topics discussed are - crop loss assessment - economic thresholds and injury levels for incest pests - mosquito leafhoppers and planthoppers population dynamics - pheromone utilization - techniques for predator evaluation - chemical based for insect resistance - applications of tissue culture - systems analysis and - rice pestmanagement. With its emphasis on experimental techniques of pest analysis and control, Rice Insects: Management Strategies will be a valuable reference for researchers and practitioners alike.

Of the global population of more than 7 billion people, some 800 million do not have enough to eat today. By 2050, the population is expected to exceed 9 billion. It has been estimated that some 15% of food production is lost to plant diseases; in developing countries losses may be much higher. Historically, plant diseases have had catastrophic impact on food production. For example: potato blight caused the Irish famine in 1845; brown spot of rice caused the Great Bengal Famine of 1943; southern corn leaf blight caused a devastating epidemic on the US corn crop in 1970. Food security is threatened by an ongoing sequence of plant diseases, some persistent for decades or centuries, others more opportunistic. Wheat blast and banana xanthomonas wilt are two contrasting examples of many that currently threaten food production. Other emerging diseases will follow. The proposed title aims to provide a synthesis of expert knowledge to address this central challenge to food security for the 21st century. Chapters [5] and [11] are available open access under a Creative Commons Attribution 4.0 International License via link.springer.com.