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Field studies of a Schizaphis on pangola grass in North Queensland

Franzmann, B.A. (1973) Field studies of a Schizaphis on pangola grass in North Queensland. Queensland Journal of Agricultural and Animal Sciences, 30 (1). pp. 85-89.



Studies were conducted in 1971 and 1972 on the aphid Schizaphis sp. of the graminum group attacking pangola grass (Digitaria decumbens) on the wet tropical coast of North Queensland. In a small plot trial, populations of the aphid were found to significantly reduce yields of pangola grass. A screening trial showed that dimethoate, omethoate and methidathion applied at 280 g a.c./ha and demeton-s-methyl at 140 g a.c./ha were effective treatments. Diaizinon, maldison and carbaryl at 280 g a.c./ha were much less effective. A comparison of aphid numbers on six pasture grasses showed that pangola grass carried the largest populations.

Item Type:Article
Corporate Creators:Department of Agriculture and Fisheries, Queensland
Subjects:Plant pests and diseases > Pest control and treatment of diseases. Plant protection > Pesticides
Animal culture > Rangelands. Range management. Grazing
Live Archive:09 Apr 2024 06:50
Last Modified:09 Apr 2024 06:50

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