Compound insecticide, made with nano-dispersant developed by the Pyongyang Natural Perfume Institute, has been introduced to growing fruit trees.

The insecticide is more efficacious against insects than the existing chemicals and effective in preventing environmental pollution.

The introduction of amino acid micronutrient compound fertilizer also makes it possible to increase fruit output with less consumption of chemical fertilizers. And newly developed sulfur-compound germicide has proved more effective than the existing ones.