Greenhouse Evaluation of Conventional and Biorational Insecticides for Managing the Invasive <i>Thrips parvispinus</i> (Karny) (Thysanoptera: Thripidae)

Two insecticide applications were made, a curative, treating an existing infestation, and a prophylactic, treating a plant prior to the thrips release. In curative application, ten larvae and ten adults were released two weeks prior to treatment. Three leaves from the upper, middle, and lower canopy were collected 24 h, 7- and 14-days post-treatment to assess thrips mortality. In the prophylactic application, plants were first sprayed with insecticides, and thrips were introduced 24 hours later, but followed the same sampling method.