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An economic evaluation of biological control of rose-grain aphid in New Zealand

Lincoln College. Agribusiness & Economics Research Unit.
Publication Date
  • Biological Control
  • Cereal Pests
  • Aphids
  • Biology
  • Economics


The rose-grain aphid (RGA) is an introduced pest which attacks cereals and can cause considerable loss of yield. It is a pest of some economic concern in affected grain growing areas of New Zealand. In 1985 the DSIR introduced a parasitoid, Aphidius rhopalosiphi, in an effort to control RGA by biological means. This study aims to perform an economic evaluation of the biocontrol of RGA in New Zealand.

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