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Varietial Resistance in Onions to Thrips123
47
Citations
0
References
1979
Year
EngineeringBotanyEntomologyPlant PathologySticky-card TrapsDrug ResistancePublic HealthMorphological CharactersVarietial ResistancePlant-insect InteractionPlant ProtectionPest ManagementIntegrated Plant ProtectionBiologyDamage RatingPesticide ResistanceCrop ProtectionInduced ResistancePest Control
The onion cultivar ‘Nebuka’ had 48, 72, and 67% fewer adult onion thrips, Thrips tabaci Lindeman, caught on sticky-card traps than cultivars ‘Texas Early Grano 502’ and ‘951,’ and ‘Creole,’ respectively. Number of larval thrips per plant was a better indicator of hostplant resistance than number of adults on sticky-cards or taken from foliage, or the total number of thrips per plant. Damage rating for Nebuka was 5.0 compared with 9.0, 8.9, and 8.5 for Texas Early Grano 502, Texas Early Grano 951, and Creole respectively. Morphological characters of Nebuka described over 40 yr ago as factors regulating thrips populations in onions were still effective in reducing damage by thrips.