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首页> 外文期刊>Munis Entomology Zoology >Bionomics of aak weevil, Paramecops farinosa (Wiedemann) (Coleoptera: Curculionidae), a pest of Calotropis procera (Ait.) R. Br. in Jammu Division of J & K State (India)
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Bionomics of aak weevil, Paramecops farinosa (Wiedemann) (Coleoptera: Curculionidae), a pest of Calotropis procera (Ait.) R. Br. in Jammu Division of J & K State (India)

机译：Aak象鼻虫的生物学特性，Paramecops farinosa（Wiedemann）（鞘翅目：Curculionidae），Calotropis procera（Ait。）的害虫。在J＆K State（印度）的查mu分部

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 The bionomics of Aak weevil Paramecops farinosa (Wiedemann) has been studied on Calotropis procera (Ait.) R. Br. in Jammu, Reasi and Rajouri Districts of Jammu region of J & K State. This is the first report from India as well as the world. P. farinosa has been observed as a major pest of C. procera, an important medicinal plant which is grown only in restricted patches in Jammu region of J & K State. Adults feed externally on the tender leaves and flowers whereas larvae feed internally with in the developing seed pods causing heavy damage. Mating usually occurs during night or early morning hours. Copulation lasts for 30 to 45 minutes and females oviposit in the pericarp of seed pods and lay 6 to 12 eggs per clutch. Eggs are oval with both ends rounded, creamish to dull yellow. Larvae are apodous, soft, and cylindrical with dark brown head and pass through five larval instars. Egg, larval and pupal periods is 6.20±0.66, 22.50±1.55 and18.00±1.47 respectively. The total period from egg to adult takes about 46.70±3.75 days. Adults emerge from the infested seed pods from June to November without any interruption and remain actively feeding on host plants till the beginning of next fruiting stage. The pests breed throughout the year and do not undergo winter rest. At least two generations are observed from June to November.
机译：Aak象鼻虫Paramecops farinosa（Wiedemann）的生物学特性已在Calotropis procera（Ait。）R. Br。 J＆K State查Jam地区的查mu，Reasi和Rajouri区。这是印度乃至全世界的第一份报告。观察到P. farinosa是C. procera的主要害虫，C。procera是一种重要的药用植物，仅在J＆K州查mu地区的受限斑块中生长。成虫以嫩叶和花朵为外食，而幼虫以发育中的种子荚为食，从而造成严重损害。交配通常发生在晚上或清晨。交配持续30至45分钟，雌性在种荚的果皮中产卵，每窝产卵6至12个卵。卵卵圆形，两端圆形，淡黄色至暗黄色。幼虫具足，柔软，圆柱形，头黑褐色，可通过五只幼虫。卵，幼虫和and期分别为6.20±0.66、22.50±1.55和18.00±1.47。从卵到成虫的总时间约为46.70±3.75天。成虫从6月到11月从受侵染的种子荚中出来，没有受到任何干扰，并继续以寄主植物为食，直到下一个结果阶段开始。有害生物全年繁殖，不进行冬季休息。从六月到十一月，至少观察到了两代。

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