Althought relatively dense concentration of T. collaris have been mentioned in the past, it is actually in recent years that it seems to have occurred a sustained increased of the populations, particularly in the Northwest of Cordoba, Southeast of Catamarca, and East of La Rioja provinces. Considerable damages have been observed on olive trees and “jojoba”, cultivations that have been largely increased in area in recent years in Northwestern Argentina.

Although considered a polyphagous species, the adults of T. collaris preferred the foliage of trees and shrubs with hard leaves, such as Aspidosperma sp., Schinopsis sp., Prosopis sp., and Zizyphus mistol. Among cultivated plants, sugar cane, cotton, olive trees, several forestal and ornamental trees and shrubs.