An inhibitor for tobacco axillary bud growth said inhibitor comprising as the active ingredient one or more kinds of ultra long chain fatty acid synthesis inhibitors such as a chloroacetamide based herbicide fentrazamide cafenstrole or indanofan an inhibitor for tobacco axillary bud growth said inhibitor comprising the aforesaid ultra long chain fatty acid synthesis inhibitor together with clorthal dimethyl or an aliphatic alcohol having 6 to 20 carbon atoms and a method for inhibiting tobacco axillary bud growth which comprises applying said inhibitor for tobacco axillary bud growth. This inhibitor for tobacco axillary bud growth shows sustained drug efficacy at a low concentration induces neither chemical injury nor disease and can contribute to the improvement in labor productivity.
