Furthermore, amitraz is especially effective against insects such as spider mites and ticks in their juvenile and resistant forms.[7] For agricultural purposes amitraz is primarily used to control the pear psylla (Cacopsylla pyricola) on Oregon pear crops and whiteflies and mites on cotton or pear crops.[2] It's also applied to pome fruit, citrus fruit, cotton, stone fruit, bush fruit, strawberries, hops, cucurbits, aubergines, capsicums, tomatoes and ornamental plants to control all stages of tetranychid and eriophyid mites, pear suckers, scale insects, mealybugs, whiteflies, aphids and eggs and first instar larvae of lepidoptera.[3] To apply amitraz, various techniques can be used such as an airblast and concentrate spray to pears or by ground boom and aircraft to cotton.[8] Territorial differences in amitraz use depend on the species of mites that infest the crops/trees/etc., the local practice, and the number and size of the pear trees. An infestation e.g. by Tetranychus spp requires higher rates of amitraz. Taking those factors into consideration the application volumes of amitraz have been standardized in terms of maximum spray concentration and in the rate of amitraz per hectare.[6]