The Use of Pheromone Traps for Leafroller Action Thresholds in Pipfruit

Abstract

In orchards using New Zealand Integrated Fruit Production for pipfruit (NZIFP-P), the decision to treat for leafroller (Lepidoptera: Tortricidae) results from sampling of 200 fruit clusters or 200 shoots. This required a large time commitment by the grower, was subject to misidentification and was a poor predictor of damage at harvest. In 1996-97… (More)

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