Judul: Fluktuasi suhu Sarang Rayap Tanah Coptotermes curvignathus Holmgren (Blattodea: Rhinotermitidae).
Abstrak: Termites were cryptobiotik and would create a tunnel for protecting their life. One of the external factors that influence the survival of termites is the temperature. Termites would always try to maintain the temperature of the nest in order to survive. The purpose of this study was to determine the insulating power of subterranean termites nest C. curvignathus to ambient temperature. This research was conducted at the Laboratory of Forest Products Termite Bogor Agricultural University. The research analyzed light intensity, the temperature inside subterranean termites nest, inside and outside temperature of laboratory. Data were processed by Microsoft Excel. The observation showed that temperature alteration at each termite nest is relatively more stable than temperature alteration inside and outside the laboratory. It was determine based on value of the amplitude. The value of amplitude inside and outside laboratory respectively ranged from 0.084-1.011 and 0.187-16.512, while in the nest A ranged from 0-0.344 and nest B ranged from 0.01-1.072. One of the factors that affect the value of the ambient temperatur is the light intensity. Termites are able to maintain the temperature of the nest when the outside temperature was fluctuates. It showed the insulating power of subterranean termites nest to ambient temperature. The nest temperature was warmer, between 30.56 °C to 33.18 ° C.
Keyword: Coptotermes curvignathus, hygrotermometer, light intensity, nest, temperature

Judul: Efikasi Nematoda Entomopatogen Heterorhabditis sp. dan Steinernema sp. Isolat Bogor Sebagai Bioinsektisida Terhadap Rayap Tanah Coptothermes curvignathus Holmgren (Isoptera : Rhinotermitidae)
Abstrak: The subterranean termite, Coptotermes curvignathus Holmgren (Isoptera: Rhinotermitidae) is the most important wood destroying termites in many regions in Indonesia. Their infestation on buildings, agricultural crops, and forest trees has caused significant economic loses. Meanwhile termite control technology still depend on termiticide application, which cause negative effect to environment. On the other hand, entomopathogenic nematodes is one of agents potential bio-control in controlling subterranean termites without negative effect to environment. A research was conducted to evaluate the effectiveness of the entomopathogenic nematodes Heterorhabditis sp and Steinernema sp as a biological control agents against subterranean termites Coptotermes curvignathus Holmgren in field test. Procedures of the research included the rearing of the entomopathogenic nematodes, both in-vivo and in-vitro, the evaluation of the nematodes toxicity against subterranean termites (LC50 and LT50) and field evaluation of entomopahogenic nematodes against subterranean termite at field. The mortality of termites was analysis with Completed Randomized Design and Tukey's Test. The effective deusity 600 IJ/ml of entomopathogenic nematodes Heterorhabditis sp and Steinernema sp caused 100% mortality of subterranean termites C. curvignathus. The LC50 value for the population of subterranean termites C. curvignathus for Steinernema sp was 322 IJ/ml and Heterorhabditis sp was 355 IJ/ml. The LT50 value for the population of subterranean termites C. curvignathus was 33,94 hours for Steinernema sp and was 34,90 hours Heterorhabditis sp. For the efficacy test, the mortality value of subterranean termites C. curvignathus caused by Steinernema sp and Heterorhabditis sp were 90,23 % and 85,65 % respectively. In field testing the mortality value of subterranean termites C. curvignathus caused by Steinernema sp and Heterorhabditis sp were 79,51 % and 94,40 % respectively. It is conclued that Steinernema sp and Heterorhabditis sp can be used as biological control against C. curvignathus.
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Judul: Kiat sukses usaha industri jamu dan minuman PD. Budi Lestari Jakarta
Abstrak: PD. Budi Lestari merupakan industri kecil minuman yang dikelola secara sederhana dengan bermodalkan Rp. 15.000.000,-. pada tahun 1996, keberadaan usaha ini dikelola oleh Bapak Amir Utama yang memiliki pengalaman 11 tahun pada industri sejenis.
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