DESCRIPTION OF COURSES

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SST 517 SEED ENTOMOLOGY                                                                                 (1L + 1P) III

Objective
To apprise about the role of insects in seed production and their effect on seed quality during storage.

Theory

UNIT I
Principles of seed entomology; pollinator insects, insect pests and their classification based on mode of infestation etc.

UNIT II
Principles of insect pollination, role of pollinators in seed Production. Augmenting quality seed production through honeybee pollination in crucifers and forage legumes. Plant protection measures in bee pollinated crops. Management of pollinators for hybrid seed production.

UNIT III
Major insect pests of principal crops and their management practices. Methods of insect pest control. Classes of pesticides, their handling and safe use on seed crops.

UNIT IV
Storage insect pests infecting seeds, their development and economic importance. Storage losses due to pests, control of storage pests, Management of storage insects pests, mites and rodents, seed sampling and loss estimation.

UNIT IV
Principles of  fumigation and their use, effect of  different fumigants; preservatives and seed protectants on seed quality; Type of storage structures – domestic and commercial.

Practicals
Collection and identification of insect-pollinators, collection and identification of important pests of stored seeds. Detection and estimation of pest infestation vis- a- vis loss of seed quality. Safe handing and use of fumigants and insecticides; safety measures in fumigating and disinfecting, exposure period, aeration etc. the storage structures. Plant protection equipments, their operation and maintenance. Pesticides, its dose determination, preparation of solution and its application.

Suggested Readings