COLORED STICKY TRAPS FOR MONITORING FRANKLINIELLA-BISPINOSA (MORGAN) (THYSANOPTERA, THRIPIDAE) DURING FLOWERING CYCLES IN CITRUS

Colored stich traps were tested in citrus groves in Lee, Hendry: and P olk counties, Florida, for attraction of Frankliniella bispinosa (Morg an) adults. White was superior to yellow, red, or orange in attracting F. bispinosa and had a higher spectral reflectance at wavelengths bel ow 500 nm. Kromecote white was superior to Olson white or Chromolux me tallic mother-of-pearl and comparable to Chromolux and Duo-Tang blues. Kromecote white, Chromolux blue, and Duo-Tang blue had 30-50% reflect ance values in the range of 400-450 nm wavelengths, and their spectral reflectance curves were similar to those of 'Valencia' and navel oran ge petals. White trap catches of F. bispinosa increased from 24 to 72 h, whereas yellow traps did not. Corresponding trap catches of adult F . bispinosa using a Mark V Krome Kote trap were not significantly diff erent at 24-h intervals over 4-d periods. Weathering did not adversely affect trap catch between 24- and 96-h exposures. Use of disposable t raps reduces degradation of color from sunlight. Mark V white, Chromol ux blue, and Duo-Tang blue disposable cards have potential for use in assessing population activity off bispinosa in the field.