Arshad Jamal Md. – författare

Pests are species that attack some resource we want to protect, and do it well enough that they cause losses or are a major annoyance. Pests are only a tiny fraction of the insect species around us. Many pest species only occasionally do real damage. Natural enemies play an important role in limiting potential pest populations. We have seen what happens when pesticides devastate the natural enemies of potential pests. Insects that were of little economic importance can become damaging pests. When a non-toxic control method is used, natural enemies are more likely to survive and reduce the numbers and damage of potential pest species. This valuable reference guide emphasizes the biological control of insects but biological control of weeds and plant diseases. Natural enemies of insect pests, also known as biological control agents, include predators, parasitoids, and pathogens. Biological control of weeds includes insects and pathogens. Biological control agents of plant diseases are most often referred to as antagonists. This book will be a useful resource to entomologists, agronomists, horticulturists, and environmental scientists.

Biodiversity or Biological diversity is a term that describes the variety of living beings on earth. In short, it is described as degree of variation of life. Biological diversity encompasses microorganism, plants, animals and ecosystems such as coral reefs, forests, rainforests, deserts etc. Biodiversity also refers to the number, or abundance of different species living within a particular region. In biodiversity, each species, no matter how big or small has an important role to play in ecosystem. Various plant and animal species depend on each other for what each offers and these diverse species ensures natural sustainability for all life forms. A healthy and solid biodiversity can recover itself from variety of disasters. At present, loss of specific species, groups of species (extinction) or decrease in number of particular organisms (endangerment) are taking place in different parts of the world at a rapid pace. These losses are often manifestations of degradation or destruction in the ecosystem or habitat. This book will be of enormous interest and value to the students and teachers of colleges and universities, scientists of research centres and institutes, and professional as well as amateur wildlife biologists, ecologists, conservationists.