AENT 5111 – Fundamentals of Entomology – I

AENT 5111 Fundamentals of Entomology

Theory

Part – I

1 Introduction to phylum Arthropoda.

2 Importance of class Insecta. Insect dominance.

3 History of entomology in India, Importance of entomology in different fields. Definition, division, and scope of entomology.

4 Comparative account of external morphonology-types of mouthparts, antennae, legs, wings, and genitalia.

5 Structure, the function of cuticle & molting, and body segmentation

6 Anatomy of Digestive, Circulatory, Sensory, Respiratory, Glandular, Excretory, Nervous and Reproductive systems of insects.

7 Types of reproduction. Postembryonic development-eclosion. Metamorphosis. Types of e.g. larvae and pupa.

8 Classification of insects up to orders, sub-order, and families of economic importance and their distinguished characters. Plant mites-morphological features, important families with examples

Part – ll & lII

 

1 Insect Ecology: Introduction, Environment and its components.

2 Effect of abiotic factors such as – temperature, moisture, humidity, rainfall, light, atmospheric pressure, and air currents. Effects of biotic factors food competition, natural, and environmental resistance.

3 Categories of pests. Concept of IPM (Integrated Pest Management), Practices, scope, and limitations of IPM.

4 Classification of insecticides, the toxicity of insecticides, and formulations of insecticides. Chemical control-importance, hazards, and limitations 6 Recent methods of pest control, repellents, antifeedants, hormones, attractants, gamma radiation. -2

7 Insecticides Act 1968-Important provisions.

8 Application techniques of spray fluids. Symptoms of poisoning, first aid and antidotes.

Part IV

 

1 Systematics: Taxonomy and its importance, history, and development, and binomial nomenclature. Definition of Biotype, Sub-species, Species, Genus, Family, and Order.

2 Classification of class Insecta up to Orders, basic groups of present-day insects with special emphasis to orders and families of Agricultural importance like Orthoptera: Acrididae, Tettigoniidae, Gryllidae, Gryllotalpidae; Dictyoptera: Mantidae, Blattidae; Odonata; Isoptera: Termitidae; Thysanoptera: Thripidae; Hemiptera: Pentatomidae, Coreidae, Cimicidae, Pyrrhocoridae, Lygaeidae, Cicadellidae, Delphacidae, Aphididae, Coccidae, Lophophidae, leurodidae, Pseudococcidae; Neuroptera: Chrysopidae; Lepidoptera: Pieridae, Papiloinidae, Noctuidae, Sphingidae, Pyralidae, Gelechiidae, Arctiidae, Saturniidae, Bombycidae; Coleoptera: Coccinellidae, Chrysomelidae, Cerambycidae, Curculionidae, Bruchidae, Scarabaeidae; Hymenoptera: Tenthridinidae, Apidae. Trichogrammatidae, Ichneumonidae, Braconidae, Chalcididae; Diptera: Cecidomyiidae, Tachinidae, Agromyziidae, Culicidae, Muscidae, Tephritidae.

 

Practical

1 Insect collection and preservation.

2 Identification of important insects

3 General body organization of insects.

4 Study on the morphology of grasshopper or cockroach.

5 Preparation of permanent mounts of mouthparts, antennae, legs, and wings.

6 Dissection of grasshopper and caterpillar for the study of internal morphology.

7 Observations on metamorphosis of larvae and pupae. Dissection of cockroaches.