期刊名称：Journal of Natural Resources and Environmental Management
印刷版ISSN：2086-4639
电子版ISSN：2460-5824
出版年度：2020
卷号：10
期号：4
页码：660-667
DOI：10.29244/jpsl.10.4.660-667
语种：Indonesian
出版社：Bogor Agricultural University
摘要：Pineapple is one of important fruit crops in Indonesia. One of important problems in pineapple production is pest infestation. This study aimed to investigate the biology, demography, and life cycle of Dolichotetranychus floridanus Banks on two pineapple cultivars (Queen and Cayenne). Observation of mite development (eggs-adults) were conducted every 6 hours. Adults were observed every day to record the fecundity. The life table was constructed from the survivor and fecundity of D. floridanus. Based on this table, the variables of population growth, including gross reproduction rate (GRR), net reproductive rate (R0), mean generation time (T) and increase intrinsic rate (r) were determined. The results showed that the development time of larvae and protonymph on Queen cultivar (2.30 and 2.09 days) was shorter than on Cayenne cultivar (2.91 and 3.34 days). On the Queen cultivar, the value of GRR (34.92), R0 (18.66), and r (0.18) of D. floridanus were higher than Cayenne cultivar (31.38, 16.43, 0.14), respectively. The generation time (T) value of this mite on the Queen cultivar (16.64) was shorter than on Cayenne cultivar (20.16). The results showed that Queen is more suitable for D. floridanus than Cayenne cultivar.
其他摘要：Nanas merupakan salah satu tanaman buah yang penting di Indonesia. Salah satu permasalahan penting pada budidaya nanas adalah serangan hama. Penelitian ini bertujuan untuk mendapat informasi mengenai biologi, demografi dan siklus hidup dari Dolichotetranychus floridanus Banks pada dua kultivar nanas (Queen dan Cayenne). Pengamatan perkembangan tungau (telur-imago) dilakukan setiap 6 jam. Pengamatan terhadap imago dilakukan setiap hari yang muncul untuk mengamati keperidian. Neraca kehidupan disusun berdasarkan kesintasan dan keperidian D. floridanus. Berdasarkan tabel tersebut dilakukan penghitungan berbagai variabel pertambahan pertumbuhan populasi, yaitu laju reproduksi kotor, laju reproduksi bersih, rata-rata waktu generasi dan laju pertumbuhan intrinsik. Nilai variable pertumbuhan populasi menunjukkan kultivar Queen lebih sesuai untuk D. floridanus dibandingkan kultivar Cayenne.
