introduction history of plant pathology 6 insect pest control 4 methodology 4 agricultural entomology 3 applied control 3 biological control 3 cultural control 3 historical 3 insect classification 3 bioecology of mango shoot gall psylid 2 culture media 2 distribution 2 forest entomology 2 historical background 2 household,veterinary and medical entomology 2 methods in microbiology 2 methods of studying microorganisms 2 nature and extent of damage 2 pest management tactics 2 phylum arthropoda 2 plant metabolism 2 preface 2 review of literature 2 social stratification 2 A-Z of houseplants 1 FAQs on group discussiions 1 Planing of an orchard 1 Sree Moolam Tirunal -early life 1 WTO agrrement on agriculture 1