| 摘要 |
PURPOSE:The titled substance or agricultural chemical capable of releasing continuously for a long time at a constant rate without loss, cousing no environmertal pollution, and having resistance to wind and rain, obtained by processing a sexual pheromone substance or agricultural chemical into microcapsules using a cellulose derivative containing a carboxyl group. CONSTITUTION:A sexual pheromone substance or agricultural chemical is processed into microcapsules using a carboxyl group-containing cellulose derivative (e.g., hydroxypropyl methyl cellulose acetate succinate, hydroxypropyl methyl cellulose phthalate, etc.), to give a sexual pheromone or agricultural chemical processed into microcapsules. The cellulose derivative is soluble in an alkali aqueous solution but insoluble in an acid or neutral water. Soluble in an organic solvent such as ethylene glycol monoethyl ether, etc. The pheromone substance or agricultural chemical is suspended in water, and a small amount of the organic solvent is added to the suspension. The suspension is applied to crops, and the agent to form capsules is well attached to the crops. |
