Mortality of Orius insidiosus by contact with spinosad in the laboratory as well as in the field and a perspective of these as controllers of Frankliniella occidentalis

Samuel Cruz-Esteban; Irais Brito-Bonifacio; David Estrada-Valencia; Edith Garay-Serrano

doi:10.1584/jpestics.D22-012

Mortality of Orius insidiosus by contact with spinosad in the laboratory as well as in the field and a perspective of these as controllers of Frankliniella occidentalis

J Pestic Sci. 2022 May 20;47(2):93-99. doi: 10.1584/jpestics.D22-012.

Authors

Samuel Cruz-Esteban^{1

2}, Irais Brito-Bonifacio¹, David Estrada-Valencia¹, Edith Garay-Serrano^{1

2}

Affiliations

¹ Instituto de Ecología, A.C. Red de Diversidad Biológica del Occidente Mexicano, Avenida Lázaro Cárdenas 253, 61600 Pátzcuaro, Michoacán, México.
² CONACyT, Avenida Insurgentes Sur 1582, 03940 Ciudad de México, México.

Abstract

Orius insidiosus, known as the pirate bug, is widely distributed throughout the Americas. It is employed for the biological control of Frankliniella occidentalis in organic berry crops in Mexico. In conventional crops, spinosad is the main control method for this pest. The LD₅₀ of spinosad on O. insidiosus was determined. In addition, we monitored the population density of F. occidentalis in blackberry crops under two types of management (biochemical+mass trapping, and biological control). The LD₅₀ was 225.65 ppm 3.8 times greater than the 60 ppm dose commonly used in blackberry crops. Both types of control are efficient; however, spinosad is less effective and should be combined with other environmentally friendly strategies. The possibility of combining chromatic traps+spinosad application and chromatic traps+strategic release of O. insidiosus to effectively control thrips without compromising fruit quality is discussed.

Keywords: biochemical control; biological control; mass trapping; toxicity.

© Pesticide Science Society of Japan 2022. This is an open access article distributed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) License (https://creativecommons.org/licenses/by-nc-nd/4.0/).