Attraction of Agonoscena pistaciae to Male or Female Psyllid in field condition
عنوان دوره: دومین کنگره بین المللی حشره شناسی ایران
نویسندگان
چکیده
The pistachio psyllid, Agonoscena pistaciae Burckhardt and Lauterer (Hemiptera: Aphalaridae), is the key pest of pistachio trees in Iran. The objective of this study was to field test, whether female or male of A. pistaciae attracted male or female pistachio psyllid in the fields. Sticky traps were used to assess whether traps with live male or female pistachio psyllid attract conspecific psyllid in the field. Sticky traps consisted of an inner cage that held the attractant (live female or male psyllid) and an outer screen designed (white-colored) to capture psyllid that came into contact with the trap. Traps contain 20 live females, traps contain 20 live males, or traps without male or female (control). The experiments were done during 3 years. In 2014, each of three treatments done 5 times with 3 replications, and in 2015 and 2016, 4 times with 4 replications. The treatments were placed at 1.5 height of tree canopy. Traps were left in the field for 4 days and after that, traps transferred to laboratory and the trapped males and females were counted in each trap. Pooled data of 3 years, were statistically analyzed. We used a signed-ranks test to analyze the paired differences. We compared the mean number of male or female psyllid to choose control or traps contain male or female. We showed that, males or females had a clear preference for sticky traps contain live females or males. Tarps contain live females attracted 40.94±3.29 males and 38.91±4.22 females and tarps contain live males attracted 42.60±6.74 males and 53.28±8.13 females. Control (traps without live male or female) attracted 35.98±3.93 males and 36.89±3.92 females. There was not significant preference between the numbers of males or females caught on control and also traps containing live females. But there was significant preference between the numbers of males or females caught on traps containing live males. More females chose traps containing live males. This results can be used for the development of more effective controlling methods such as mating disruption or lure and kill method.
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