The response may be more effi- cient when timely vector control measures are imple- mented after the immediate detection of an infected mosquito from the GOS trap. The situation is exacerbated due to a long or delayed re- sponse time for fogging and ULV space spraying after a case has been reported. High dengue transmission rates across Southeast Asian countries with extensive diversity in population density, climate, and geology may be explained by the in- fectiousness of asymptomatic cases to Ae. For a start the strategy provides early warning system where swift action can be taken by public health workers to reduce dengue out- breaks. This study has shown that the use of GOS traps and NS1 kit represents one possible way forward to forewarn and reduce dengue outbreaks which are increasing yearly and projecting a global disease burden. Studies of the per- formance of MosquiTrap in Belo Horizonte and in Rio de Janeiro also indicated the superior capacity of ovitrap in detecting the presence of mosquitos. aegypti, independent of the number of AedesTraps utilized. At all sites, ovitraps were concomitantly in- stalled and shown to be more sensitive than AedesTraps in detecting the presence of A. The results of the present study demonstrated that there is a strong relationship between the number of AedesTrap available and the capacity to detect mosquito infestation at sites. aegypti per site than sites with 1 and 2 traps. According to these authors, sites with 4, 6, and 8 sticky traps captured significantly more A. The increase in capture rates (0.8 to 2.6 mos- quitoes/premise) due to the number of available AedesTraps is similar to results obtained by Wiliams et al. The larger number of traps in the field significantly improved AedesTrap performance in collecting A. However, further experiments on dot size, color and distribution are needed to improve trap efficiency. By adding the red dots to the yellow sticky trap, we tried to combine these two stimuli. pomonella, yellow panels were found to be more suitable for capturing R. While fruit-mimicking spherical traps are superior for attracting R. Dark-colored spheres are preferred, because they stand out in the strongest contrast against the background. Observations by Wiesmann indicate that flies detect the location of host fruit solely through vision. showed that the combination of yellow surfaces with either cherry-sized discs or hemispheres did not significantly increase the attractiveness of traps. Haisch and Forster, however, demonstrated that dots of 1 cm in diameter increased captures on yellow traps, whereas dots with larger diameters had no influence, and Russ et al. He also assumed that flies detect spheres solely on the basis of circular silhouette. cerasi was determined to be 2.5 cm in diameter by Prokopy. Red spheres of 7.5 cm in diameter are used as traps for the apple maggot fly, Rhagoletis pomonella. Mating and oviposition site-type stimuli.
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