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6

[[underlined]]INVERTEBRATES[[//underlined]]-cont.

6. Study detailed life history of important species and experiment with controles by biological, chemical or other means including vegetation control.

7. Study species and populations important in litter decomposition and soil development.  Determine their exact role.

8. Determine abundance of the various pest species in relation to residual insecticides.  Study genetics or resistant species.

9. Initiate studies if the parasites of the economically important species, and experiment with their effective use.

10. Study external parasites of the higher birds and mammals and in cooperation with medical authorities determine their effectiveness ascarriers or vectors of viral agents infective to man.