The outbreak of pests or so-called harmful insects and diseases is now a very serous problem in agricultural practice. Though farmers have been using chemical pesticides to control them, the problems have not been solved, or rather, the situation has been getting worse in a vicious cycle. Why is this happening?

First, agricultural research has been emphasizing how to control the pest problem when it appears, not understanding the root causes of the problem. No problem can be solved without considering the root causes. Second it is man’s lack of understanding of the fact that in a health environment, plants grow well, and pests do not attack plants easily. Even if pests do attack, damage is minimal.

We need to break out of the vicious cycle of pest problems and discover a permanent solution.

In addition, we need to reconsider weeds which are regarded by many as a pest.