Abstract: A method of controlling or preventing damage to a plant, which comprises applying to the plant, part of a plant, plant organ, and/or plant propagation material thereof, or surrounding area thereof a combination comprising (I) abamectin, and (II) etoxazole, in any desired sequence or simultaneously.

Abstract: An acaricidal composition comprising as active ingredients(A) either .alpha.-cyano-3-phenoxybenzyl 2,2,3,3-tetramethylcyclopropanecarboxylate or .alpha.-cyano-3-phenoxybenzyl N-(2-chloro-.alpha.,.alpha.,.alpha.-trifluor o-p-tolyl)-valinate, and(B) O,O,O',O'-tetraethyl S,S'-methylene bis(phosphorodithioate), is very effectively applicable as a composition for controlling acarine pests such as two-spotted spider mite (Tetranychus urticae Koch), carmine spider mite (Tetranychus cinnabarinus Boisduval), Kanazawa spider mite (Tetranychus Kansawai Kishida), citrus red mite (Panonychus citri McGregor), European red mite (Panonychus ulmi Koch), broad mite (Polyphagotarsonemus latus Banks), etc. in areas cultivated with fruit trees, tea-plant, vegetables, flowering plants, etc.