Translator Disclaimer
1 January 2010 Density and Natural Enemies of the Asian Citrus Psyllid, Diaphorina citri (Hemiptera: Psyllidae), in the Residential Landscape of Southern Florida
Author Affiliations +
Abstract

This study was conducted to determine the density, the incidence of parasitism, and the generalist predator assemblage of the Asian citrus psyllid, Diaphorina citri Kuwayama (Hemiptera: Psyllidae), on orange jasmine plants [Murraya paniculata (L.) Jack] in the residential landscape of Miami-Dade County, Florida. Flush shoots (10 cm) were collected from ten orange jasmine hedges in each of the four communities (Doral, Coral Gables, Palmetto Bay, and Homestead). We did not detect any consistent pattern in the fluctuation of psyllid density over time in the four communities. The greatest densities of eggs (65.5 ± 36.3 eggs/shoot), early instars (first to third) (87.2 ± 47.8 nymphs/shoot), and late instars (fourth and fifth) (16.9 ± 9.3 nymphs/shoot) were detected on 24 May 2006 in Palmetto Bay (egg) and Doral (early and late instars). The density of adult psyllids remained below two individuals per flush shoot at all locations for the entire sampling period. There were no consistent correlations between environmental factors (temperature, relative humidity, precipitation, and wind speed) and the densities of nymphs and eggs. Percent parasitism by Tamarixia radiata (Waterston) averaged 18.5% in 2006, and no consistent patterns were observed among communities and sampling dates. Ladybeetles, syrphid flies, and spiders were the most common generalist predators observed on the psyllid-infested flush shoots.

Juang-Horng Chong, Amy L. Roda, and Catharine M. Mannion "Density and Natural Enemies of the Asian Citrus Psyllid, Diaphorina citri (Hemiptera: Psyllidae), in the Residential Landscape of Southern Florida," Journal of Agricultural and Urban Entomology 27(1), (1 January 2010). https://doi.org/10.3954/11-05.1
Accepted: 1 July 2011; Published: 1 January 2010
JOURNAL ARTICLE
17 PAGES


SHARE
ARTICLE IMPACT
RIGHTS & PERMISSIONS
Get copyright permission
Back to Top