نوع مقاله : مقاله پژوهشی
نویسندگان
1 دانشجوی سابق کارشناسی ارشد حشره‌شناسی کشاورزی، گروه گیاه پزشکی، دانشکده کشاورزی، دانشگاه بوعلی سینا، همدان
2 استادیار، گروه گیاه پزشکی، دانشکده کشاورزی، دانشگاه بوعلی سینا، همدان
3 دانشیار، گروه گیاهپزشکی، پردیس کشاورزی و منابع طبیعی دانشگاه تهران، کرج
چکیده
کلیدواژه‌ها
عنوان مقاله [English]
نویسندگان [English]
In this study, the possible effects of host plant resistance on some demographic parameters and predation rate of Hippodamia variegata Goeze life stages have been investigated. Demographic data and predation rate have been analyzed by the age-stage two-sex life table and consumption rate program. Obtained results showed that preadult diuration and total preoviposition period (TPOP) of ladybirds that fed by Omid (resistant cultivar) originated aphids were significantly shorter (14.99±0.04 and 16.96±0.09 respectively). Additionally, time from egg to death (54.09±3.2), adult longevity (48.67±2.8) and oviposition period (24.24±1.42) of these lady beetles were significantly longer. The average predation rate of first, second, third, fourth larval stages and male and females feeding on Omid cultivar were 30.37±1.77, 50.51±2.57, 83.39±4.39, 259.52±6.05, 4965.47±241.35 and 8516.62±406.67 and for Sardari were 28.1±1.16, 39.37±2.53, 86±4.12, 210±6.66,4750±376.11 and 6971.04±29, respectively.
کلیدواژه‌ها [English]
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