Resumo

RUIZ-GALVAN, Isabel; BAUTISTA-MARTINEZ, Néstor; SANCHEZ-ARROYO, Hussein  e  VALENZUELA ESCOBOZA, Fernando Alberto. Chemical control of Diaphorina citri (Kuwayama) (Hemiptera: Liviidae) in persian lime. Acta Zool. Mex [online]. 2015, vol.31, n.1, pp.41-47. ISSN 2448-8445.

The effects of six commercial insecticide formulas for the control of the different stages of Diaphorina citri (Kuwayama) on Persian lime were evaluated under greenhouse conditions and in the laboratory. The studied insecticides were: imidacloprid+betacyflutrin, spirotetramat, imidacloprid, thiametoxam+ lambda cyhalothrin, imidacloprid+ lambda cyhalothrin, petroleum paraffin oil (mineral oil), and an untreated control. The specimens used were from a strain of D. citri brought from Cuitlahuac, Veracruz in January, 2012. They were established on Persian lime plants that had a year without insecticide applications. The evaluated parameters were insecticide toxicity on eggs, nymphs, and adults. The essays were set up in a totally random design, with 10 replicates for each treatment. The data were subject to a variance analysis (ANOVA) and Tukey's mean separation method (P = 0.05). Petroleum paraffin oil caused mortality in eggs; although, imidacloprid delayed egg emergence more than the other insecticides. Nymphs were susceptible to all the evaluated insecticides, with a higher mortality resulting from imidacloprid and imidacloprid+betacyflut rin. Mortality was greater in adults than in nymphs. At different dates after application, 100% mortality rates were registered for these two biologic stages.

Palavras-chave : Insecticides; egg; nymph; adult; Asian citrus psyllid.