Impact of fertilizing bell pepper, Capsicum annuum L., with various micronutrients on age-stage, two-sex life history of Myzus persicae (Sulzer) under greenhouse conditions
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عنوان دوره: سومین کنگره بین المللی حشره شناسی ایران
نویسندگان
Department of Plant Protection, College of Agriculture, Lorestan University, Khorramabad, Iran
چکیده
The green peach aphid, Myzus persicae (Sulzer) (Hem.: Aphididae), is a polyphagous and holocyclic aphid that causes chlorosis, necrosis, wilting, stunting and flower and fruit abortion on different crops. In the current study, influence of fertilizing bell pepper, Capsicum annuum L. with four micronutrients consisted of Manganese (Mn), Copper (Cu), Zinc (Zn) and Iron (Fe) treatments, as well as control were evaluated on life history parameters of M. persicae under greenhouse conditions at 25 ± 5 oC, 60 ± 5% relative humidity and 16:10 h L:D. Data were analyzed according to age-stage, two-sex life table theory using MSChart-Twosex software. Significant differences were found among development time of M. persicae on the fertilizer treatments. The shortest and the longest nymphal development time were recorded in the M. persicae reared on Zn and Fe treatments (6.38 and 7.18 days, respectively). The highest and the shortest adult longevity of the aphid were found on Fe (19.29 days) and Mn (15.07 days) treatments, respectively. The lowest and the highest total longevity of M. persicae were observed on Mn treatment and control (20.54 and 24.72 days, respectively). Similarly, the highest and the lowest reproductive period of the pest were recorded on Fe and Mn treatments (12.04 and 15.62 days, respectively). The lowest and the highest adult pre-reproductive period (APOP) were also observed on the Mn and Cu treatments (1.27 and 1.75 days, respectively). Moreover, total pre-reproductive period (TPOP) of M. persicae was recorded as 7.68 and 8.80 days on plants treated with Fe and Zn, respectively. Fecundity of M. persicae ranged between 48.83 and 65.49 offspring on Mn and Fe treatments, respectively. Results of the current study clearly showed the significant influences of green peach aphid life history fed on the plants grown under different micronutrient treatments that may be useful in improving sustainable management of this aphid
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