Allsopp, P.G., & McGill, N.G. 1997 Variation in resistance to Eumargarodes laingi (Hemiptera: Margarodidae) in Australian sugarcane.. Journal of Economic Entomology 90: 1702-1709.

Notes: The responses of 24 commercial cultivars and one experimental clone of sugarcane to the margarodid Eumargarodes laingi Jakubski were evaluated in a field trial in southern Queensland. Although there were significant quantitative differences between clones in yields over the four crops, the rankings for yield components and for cyst numbers did not differ significantly between crops. Hence, clones could be selected for resistance to E. laingi on the basis of data from one or two years. However, clones that showed good antibiosis/antixenosis resistance to E. laingi showed poor resistance to the root pathogen Pachymetra chaunorhiza, which may provide a conflict in the breeding program. Combining cultivars should minimize the detrimental impact of E. laingi on sugar production.