It is evident that our environment has been flooded with pesticides and that some of these have had effects other than those intended. There is no doubt that indiscriminate use of pesticides has the potential to upset temporarily many ecological patterns. Whether this is significant in the long run remains to be seen.

It is sincerely hoped that the experience of the past (especially in the first world) will ensure wiser use of the pesticides in the future (primarily in the third world). It is likely that new pesticides will be developed and that they will bring new problems. Some of these problems may have far-reaching environmental implications in terms of their potential benefits and their propensity for damage. These problems will be compounded by residues of pesticides and a host of other contaminants already present. Therefore, it should and must be everyone's responsibility that the potential benefits from pesticides are maximised. However, such maximisation will be realised only if the environmental implications of their use is understood, and if they are applied with discretion to minimise their side effects.