The use of chemical medicine in agriculture caused both the increase of food production and the eliminated of numerous insects there are in the world. For this reason, there are opinions about the form of agriculture should be changed immediately. In my opinion, since the powerful reproduction skills of insects and the demand of food supplying, the drugs should be used in agricultural industry.
Cemical sprays in agriculture, indeed, has impact in ecosystem. Any artifitial production will affect nature in some perspectives, because it will be great poisoness for them. Industry besides river and sea polluted water resource with chemical element, the disease itai-itai disease in Japan for instance, is come from the pollution of chemicals. Thus, using medicine will damaged the living of insects.
However, the reproduction of insects are able to prevent or cover such a problem. Evolution made them available to produce a huge amount of eggs to bear with chemical impact which affected them, Even an enormous number of insects been killed by drugs, the strong reproduction will recover the problem.
Moreover, the demand of food supplying need to do so. Although the number of production shows growth trends, population also continues to increase. While the preserve of nature should been proceed, the maintain of population also should to. Therefore, we should not stop spraying our productions, to make food supplying be stable.
In conclusion, uses of medicine in agriculture indeed has impact with the ecosystem of insects. However, the strong reproduction will save them from the danger of exsistence. Since stablising food supply is more important for humanity, I do not agree with the stop of drug uses.