Abstract
The objectives of this study, dealing with the relationships of insects between the natural forest and the open agricultural land, were to: (a) record insects at sites of the forest interior, the forest margin and agricultural land, using modified Malaise traps, in order to identify species that occur in the forest as well as in the open country, (b) determine the movement patterns of selected species based on their abundances at the different habitats, (c) find out whether major pest species of the cultivated crops show any relationship to the adjacent natural forest and (d) find out whether species originating from the forest (non-pest species) are able to colonize open country. The results indicate that the habitat of the pest species considered is limited to cultivated land and does not include the forest. None of the non-pest species recorded in this study would be able to exist permanently in the agricultural area. They all depend on a closed forest habitat and therefore will become extinct as the forest disappears with proceeding slash and burn agriculture. However, some but not all of the pest and non-pest species were regularly recorded from the forest margin.
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