Trapping Efficacy of Different Attractants on Bactrocera Dorsalis Hendel in Red Meat Honey Pomelo Orchards

The comparison in field trapping efficacy on B.dorsalis was carried out for zhenfengkexing sticky-trap and 3attractants such as Yi′brand Herbal aromatic attractant (Yi′brand) , Haotianyuan′physical induced adhesive (Haotianyuan′) and Methyl eugenol, in red meat honey pomelo orchard.The results showed that the numbers of B. dorsalis attracted by Haotianyuan′was maximal in overall trial (30d) and single-day for (114.8±27.7) and (15.0 ±3.9) head·bottler-1, respectively, which were significantly higher than those of‘Yi'brand, Methyl eugenol and Zhenfengkexing sticky-trap.The differences in field trapping efficacy of 4attracts were remarkable for various trapping time schedule as showed in following: (1) the highest trapping number of B.dorsalis was obtained by Haotianyuan′in two time phases of the 1-5dand 6-10dafter treatment; (2) during the 20-25dafter treatment, the trapping number was significantly lower in Haotianyuan′than in Yi′brand; (3) there was no significant difference in attracting quantity between Yi′brand and Methyl eugenol during entire trial period.Because of the shortest in function time, the quantity of attracted B.dorsalis by zhenfengkexing sticky-trap was the lowest one with no significant difference to the blank control.The results suggest that, by quick function, Haotianyuan′ could be used while the population of B.dorsalis reached in hazard peak to reduce the density of male adult quickly; Yi′brand and Methyl eugenol could be used in monitoring and long-term prevention for controlling of B.dorsalis.