Evaluation of 10 insecticides against pink ground pearl Eumargarodes laingi Jakubski (Hemiptera: Margarodidae)

B.C. DominiakA, N.G. McGill and P.G. Allsopp, Bureau of Sugar Experiment Stations, PO Box 651, Bundaberg, Queensland 4670, Australia.

A Present address: NSW Agriculture, 161 Kite Street, Orange, New South Wales 2800, Australia.


Bioassays of alpha-cypermethrin at 0.01 g L-1 killed adult female of Eumargarodes laingi. Cadusafos was active at 1 g L-1, and malathion and tefluthrin were active at 10 g L-1. Variable results were obtained with thiodicarb; active at 0.01 and 10 g L-1, but not at 0.1 or 1 g L-1. Chlorpyrifos, fipronil, methidathion, carbofuran and bifenthrin were not active at 10 g L-1. A field trial of alpha-cypermethrin did not lower subsequent cyst populations significantly.


Plant Protection Quarterly (1996) 11 (4) 134-136.