Studies on the economic importance of the blossom thrips, Frankliniella insularis (Thripidae, Thysanoptera) on pigeon pea, Cajanus cajan, in Trinidad

Authors

  • G.V. Pollard Department of Biological Sciences, The University of the West Indies, St. Augustine, Trinidad
  • A. Guiseppi-Elie Department of Biological Sciences, The University of the West Indies, St. Augustine, Trinidad

Abstract

Data suggest that the flower thrips, F. insularis, could reduce the yield of pigeon pea, Cajanus cajan, cv. UW 17. Yield (pod-set) per plant differed by 47·25 per cent in thrips-free plants as compared with thrips-infested plants. Evidence also suggested the likely importance of cross-pollinators with a possible contribution of 42 per cent towards the final yield per plant.

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Issue

Volume 58 Number 3

Section

Research Papers