Increasing effectiveness of visual traps for the caribbean fruit fly, anastrepha suspensa (diptera: tephritidae), by use of fluorescent colors
1978
GREANY, P.D. | BURDITT, A.K. JR. | AGEE, H.R. | CHAMBERS, D.L.
Fluorescent orange sticky traps (15 times 20 cm) reflecting maximally at 590 nm captured significantly more Caribbean fruit flies than nonfluorescent orange traps. Fluorescent traps with reflectance peaks at 510 and 610 nm also tended to capture more flies than the plain orange traps. Fly capture rates were directly related to the proportion of total light reflected in the 580-590 nm region and to the intensity of light of this hue. The fluorescent orange paint combined these features (optimal hue and high-intensity emission). A disproportionate number of the captured flies were females (70%), as only ca. 50% of the adults reared from field-infested fruit were females. Most (80%) of the captured females were reproductively mature. These data support previous indications that responses to orange panels represent fruit-seeking rather than foliage-seeking behavior. The relevance of these findings is discussed in relation to fruit fly detection programs.
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