Judul: Pengaruh Instar Larva Hyposidra talaca Walker dan Hari Panen Polihedra Pascainokulasi terhadap Produksi Polihedra Nucleopolyhedrovirus
Abstrak: Tea looper (Hyposidra talaca) is one of the most important pests of tea and causes significant yield losses. Population of H. talaca in the field is affected by the presence of Nucleopolyhedrovirus (NPV). Nucleopolyhedrovirus is an entomovirus that infects caterpillar and causes polyhedrosis. Hence, it can be used as a biological agent for controlling tea looper caterpillar population. The objective of this research is to study the effect of instar and harvesting time of polyhedra on the production of polyhedra. The HtNPV concentration used was 1.59 x 107 PIBs/ml as an initial inoculum. Third, fourth, and fifth instar H. talaca larvae were inoculated and reared in room temperature, and harvested on the 4th, 5th, and 6th day after inoculation. Then polyhedra from different H. talaca instars and harvesting time were extracted and purified using differential centrifugations resulting in the partially purified polyhedra. The concentration of polyhedra from different instars and harvesting time was counted using Neubauer haemocytometer. Mortality rates on 3rd instar larvae were the highest because 3rd instar larvae were more susceptible to NPV compared to 4th and 5th instars. The concentration of polyhedra harvested from 4th instar larvae on the 6th day after inoculation was the highest. There was a signifigant effect of larval instars and polyhedra harvesting time on polyhedra production
Keyword: tea, polyhedra, Nucleopolyhedrovirus, Hyposidra talaca, HtNPV

Judul: Pengelolaan Kebun dan Upaya Pengendalian Hama Ulat Jengkal (Hypiosidra talaca) dengan Aplikasi Hyposidra talaca Nucleopolyhedrovirus pada Tanaman Teh di PT Perkebunan .Nusantara VIII Gunung Mas Bogor, Jawa Barat.
Abstrak: The objectives of this study is to understand the management of plant maintenance of tea plantation at PT Perkebunan Nusantara VIII Gunung Mas and to propose an alternative pest control for tea looper (Hyposidra talaca) utilizing Hyposidra talaca Nucleopolyhedrovirus (HtNPV). The methods used were interviews, observation in the field, and the field efficacy test of HtNPV directly on tea plants. Tea plant maintenance activities include trimming, fertilizing, plucking, weed control, and pests-diseases management. Poor sanitary condition of tea plantation and the low human resources became limiting factors in the field. The most important pest at PT Perkebunan Nusantara VIII Gunung Mas is tea looper (Hyposidra talaca) that feed on tea shoots and may reduce production to more than 40%. Alternative control measure for H. talaca using HtNPV can be carried out by spraying HtNPV suspension. Effective application of HtNPV was applied twice per week and were able to reduce the population of H. talaca to more than 50% within 7 days, and can reduce the population up to 100% within 11 days.
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Judul: Pilihan antara Membangun Fasilitas Sendiri secara Mandiri atau Membangun Kerjasama dengan Pihak Lain
Abstrak: Dengan lepasnya Banten dari propinsi Jawa Barat, Pelabuhan Cirebon merupakan satu-satunya pelabuhan laut yang dimiliki Jawa Barat, sehingga mendapat prioritas utama untuk dikembangkan.
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