Treatment levels for citrus thrips, Scirtothrips aurantii (Thysanoptera: Thripidae), in mango orchards
Date
2000
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Abstract
ENGLISH ABSTRACT: Field work was carried out at three different sites in the Mpumalanga Province of South Africa to determine the correlation between the numbers of citrus thrips, Scirtothrlps aurantii, and the damage caused on mango. Adults of S. aurantiiwere monitored weekly by means of yellow sticky traps, while fruit was inspected visually and the number of adults and larvae recorded. Percentage fruit unacceptable lor export was determined at harvesting. Cumulative insect-days computed for S. aurantii on the traps and fruit were correlated with the percentage fruit showing lesions exceeding the level acceptable for export. The relationship between the number of S. aurantiion traps (cumulative insect-days) and the percentage fruit culled was described by Y 0 + 0.OO2X, while the number on fruit was described by Y = 0 + 0.21 Ox. To maintain the percentage culled fruit at a 5 % or lower level, producers should implement chemical intervention when the number of S. aurantii exceeds 2326 cumulative insect-days on traps, or 24 days on fruit.
Description
CITATION: Grove, T., Giliomee, J. H. & Pringle, K. L. 2000. Treatment levels for citrus thrips, Scirtothrips aurantii (Thysanoptera: Thripidae), in mango orchards. African Plant Protection, 61).
The original publication is available at https://journals.co.za/doi/abs/10.10520/AJA10233121_125
The original publication is available at https://journals.co.za/doi/abs/10.10520/AJA10233121_125
Keywords
Citation
African Plant Protection