Tomato (Solanum lycopersicum L.) plants have developed or adapted over time efficient defense mechanisms against insect attack. Because the mechanisms often fail to be effective enough, alternatives are needed to help counteract attacks by pests. Sodium menadione bisulfite (MBS), a compound derived from vitamin K3, possesses insecticidal properties. In this work, bioassays were done to verify insecticidal effect of MBS on Bactericera cockerelli (Sulc) and Bemisia tabaci (Gennadius). MBS killed more than 80 and 60% of the insects evaluated, with LC50 of 54.79 and 521.72 ppm, respectively. MBS also deformed B. cockerelli adults hatched from nymphs exposed to concentrations of MBS tested under in vitro conditions. Therefore, menadione can be considered an alternative for integrated management of B. cockerelli and B. tabaci.
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24 March 2022
Insecticidal Effect of Menadione on Whitefly, Bemisia tabaci, and Tomato Psyllid, Bactericera cockerelli
Juan Carlos Delgado Ortiz,
Alberto Roque Enriquez,
Mariana Beltrán Beache,
Yisa María Ochoa Fuentes,
Ernesto Cerna Chávez,
Rocío de Jesús Díaz Aguilar,
Jerónimo Landeros Flores
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Southwestern Entomologist
Vol. 47 • No. 1
March 2022
Vol. 47 • No. 1
March 2022
