PROBLEM TO BE SOLVED: To provide a new insecticidal miticide for agricultural and horticultural use that is effective against even pests having resistance to existing drugs (reduced sensitivity, and developed cross resistance and/or multiple drug resistant).SOLUTION: An insecticidal miticide for agricultural and horticultural use contains only doramectin as an insecticidal miticidal component. There is also provided a method for controlling agricultural and horticultural pests and mites, particularly, pests and mites having resistance to emamectin and/or milbemectin, by using the insecticidal miticide for agricultural and horticultural use.SELECTED DRAWING: NoneCOPYRIGHT: (C)2020,JPO&INPIT【課題】既存剤に対する抵抗性(感受性低下、交差耐性および/または多剤耐性の発達)害虫の発生に対しても有効な、新たな農園芸用殺虫殺ダニ剤を提供すること。【解決手段】殺虫殺ダニ成分としてドラメクチンのみを含有する農園芸用殺虫殺ダニ剤および、この農園芸用殺虫殺ダニ剤を使用して、農園芸害虫やダニ、特に、エマメクチンおよび/またはミルベメクチンに抵抗性を有する害虫やダニを防除する方法を提供する。【選択図】なし