Modeling egg distribution of Tinocallis kahawaluokalani (Kirkaldy) (Hemiptera: Aphididae) on Lagerstroemia indica L. (Lythraceae)

Abstract

Neotropical Entomology 35(6):762-768 (2006) ABSTRACT -This is the fi rst record of winter eggs of the holocyclic monoeceous crapemyrtle aphid Tinocallis kahawaluokalani (Kirkaldy) on Lagerstroemia indica L., in Brazil. The shiny black eggs were observed since early autumn, laid on small folds and crevices of the branches. In order to evaluate and model the egg abundance and distribution, four branches from the cardinal points of 10 plants of two age groups, 5-10 and 20-30 years-old, were collected randomly and cut in eight segments of 10 cm and the number of eggs was registered, in the winter 2001. The eggs were laid mainly on the middle portion of the branch, from 40 cm to 60 cm from the apex on the older trees (54%) and on 30 cm to 60 cm on younger ones (58%). The data fi t in a longitudinal regression model that expresses the tendency of the egg distribution on the branches. The number of eggs was greater on the 20-30 year-old plants (61%) than on younger ones (39%). The average number (± CI 95%) of eggs was 70.5 9.3 and 47.4 12.5, respectively, for the older and younger tree groups. There was no correlation between egg distribution and the cardinal positions of the branches.

The effects of temperature for development time, fecundity and reproduction on some ornamental aphid species

“…Sarucallis kahawaluokalani (Kirkaldy), Eucallipterus tiliae L., Capitophorus elaeagni del Guercio, Aphis nerii Boyer de Fonscolombe and Cinara cedri Mimeur have an almost cosmopolitan distribution (Blackman and Eastop, 1994;Pierce, et al, 1998;Dixon,1971;Ripka, 2001;Flurkiger and Braun, 1995;Mizell and Knox, 1993;Lazzari and Carvalho, 2006) and are present in Turkey (Toros, et al, 2002;Ünal and Özcan, 2005).…”