Agricultural Entomology

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                               Agricultural Entomology

8. AEN 201 - APPLIED ENTOMOLOGY-

Agricultural Entomology

The field of entomology may be divided into 2 major aspects.

1. Fundamental Entomology or General Entomology
2. Applied Entomology or Economic Entomology

Fundamental Entomology deals with the basic or academic aspects of the Science of
Entomology. It includes morphology, anatomy, physiology and taxonomy of the
insects. In this case we study the subject for gaining knowledge on Entomology
irrespective of whether it is useful or harmful.

Applied Entomology or Economic Entomology 
deals with the usefulness of the Science of Entomology for the benefit of mankind. Applied entomology covers the study of insects which are either beneficial or harmful to human beings. It
deals with the ways in which beneficial insects like predators, parasitoids,
pollinators or productive insects like honey bees, silkworm and lac insect can be
best exploited for our welfare. Applied entomology also studies the methods in
which harmful insects or pests can be managed without causing significant damage or loss to us.
 In fundamental entomology insects are classified based on their structure into
families and orders etc. in applied entomology insects can be classified based on
their economic importance i.e. whether they are useful or harmful.

 Economic classification of insects

Insects can be classified as follows based on their economic importance.
This classification us according to TVR Ayyar.
 Insects of no economic importance:-There are many insects found in forests, and agricultural lands which neither cause harm nor benefit us. They are classified under this category. Human beings
came into existence 1 million years ago. Insects which constitute 70-90% of all
animals present in this world came into existence 250- 500 million years ago.

Reference

TNAU - Tamilnadu Agriculture University, Coimbatore Materials And TNAU - Affiliated Private College Materials, TNAU Government College Materials, ICAR - Indian Council Of Agriculture Research, New Delhi Materials to Collected.



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