Observations on some effects of population density on Dysdercus intermedius Distant (Heteroptera, Pyrrhocoridae)

RESP-575

Sampling and Preservation of Rice Insects

Rice is one of the most important food crops in West Africa. In many areas, insect pests cause severe damage to the growing rice plant. If the developing rice grains are attacked, pest damage also reduces the grain quality. For these reasons it is necessary to control pests. To be able to do this effectively, the types of insects causing the damage and their natural enemies must be identified. This information can be obtained by sampling in the rice fields. This training guide has been designed to provide essential information for a practical approach to sampling and preserving insects found in rice environments. The guide can also be used to train field assistants in sampling rice insects. In this case, it should be read before a training session to provide background information. It will also serve as reference material for research assistants training in crop pest research

The behaviour of a cotton stainer Dysdercus Intermedius ( Heteroptera, Pyrrhocoridae) in a temperature gradient and the effect of temperature on aggregation

RESP-578

The behaviour of a cotton stainer, Dysdercus intermedius, distant (Heteroptera, Pyrrhocoridae) towards models and its significance for aggregation

RESP-604

The reactions of Dysdercus intermedium (Heteroptera, Pyrrhocoridae) to moisture with special reference to aggregation

RESP-566