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ENT 505  PRINCIPLES OF BIOLOGICAL CONTROL                                                                                 (2L+1P) I

Objective

  To train the students with theory and practice of biological control, mass production techniques and field evaluation of various biological control agents like parasitoids, predators and various entomopathogenic microorganisms.

Theory

UNIT I
  History, principles and scope of biological control; important groups of parasitoids, predators and pathogens; principles of classical biological control-importation, augmentation and conservation.

UNIT II
  Biology, adaptation, host seeking behaviour of predatory and parasitic groups of insects. Role of insect pathogenic nematodes, viruses, bacteria, fungi, protozoa, etc. Biological control of weeds using insects.

UNIT III
  Mass production techniques of quality bio-control agents and economics.

UNIT IV
  Methods of natural enemy colonization, recovery, evaluation and conservation. Pest-natural enemy ratios; biological control of important crop pests and weeds.

UNIT V
  Establishment of biocontrol laboratories and related infrastructure.

UNIT VI
  Successful biological control projects, analysis, trends and future possibilities of biological control; importation of natural enemies-quarantine regulations; biotechnology in biological control; and semiochemicals in biological control.

Practicals
  Identification of common natural enemies of crop pests (parasitoids, predators, and microbes), and weed killers. Visits (only where logistically feasible) to bio-control laboratories to learn rearing and mass production of  egg, egg-larval, larval, larval-pupal and pupal parasitoids; common predators; microbes and their laboratory hosts; and phytophagous natural enemies of weeds. Field collection of  parasitoids and predators. Hands-on training in culturing, and identification of common insect pathogens. Quality control and registration standards for biocontrol agents.

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