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PENDUGAAN KEPEKAAN KAYU KARET TERHADAP SERANGAN KUMBANG AMBROSIA Paimin Sukartana
Jurnal Penelitian Hasil Hutan Vol 5, No 7 (1988): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.1988.5.7.417-419

An experiment to assess the susceptibility of rubber wood (Hevea brasiliensis) to ambrosia beetle infestations was conducted in a rural area, near a rubber plantation in Jasinga, Bogor. Fresh cut rubber wood, each of 75 cm in length 1:1 and of about 25 cm in diameter, were prepared for four treating conditions including freshly cut, debarked, and coated with flint kote, and (in a prepared bore hole made on the middle of test logs with 2.5 methanol 96%. The extent of the beetle infestations were then observed and recorded.The test results revealed that the degree of rubber log susceptibility to ambrosia beetle infestations was affected by the treatments. The debarked logs were highly infested by the beetles in less than nine days after the treatment while the un barked ones were still soundly left in the field for more than one month. Significant increase in log susceptibility due to the treatments with ethanol and flint kote was also recorded even though the beetle infestations were not so high then those on the debarked ones.

LAJU SERANGAN KUMBANG AMBROSIA XYLEBORUS SP. PADA DOLOK TUSAM (PINUS MERKUSII) Paimin Sukartana
Jurnal Penelitian Hasil Hutan Vol 12, No 1 (1994): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.1994.12.1.21-24

The effect af some treatments of freshly cut Sumaura pine logs (Pinus merkusii) on the rate of ambrosia beetle attack (Xylebarus sp.) was observed. The results showed that:l . Most of the tested logs were initially infested by the beetles about one week after felling.2.There was no significant difference among the susceptibility of any sections of the tree trumk, whether they were teaken from the bottom, middle or top portions.3. Debarked logs were more susceptible, at least in the first week. to the beetle attack.4. Keeping the logs in the shady areas. and also sprinkling with water, may lengthen the period of Jog freshness, but it also means praviding suitable host for the beetles continuausly.

DAYA TAHAN ALAMI 30 JENIS KAYU TERHADAP RA YAP TANAH Macrotermes gilvus (Hagen); SUATU UJI LAPANG YANG DIPERCEPAT Paimin Sukartana
Jurnal Penelitian Hasil Hutan Vol 13, No 2 (1995): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Two bundles of wood samples consisting of each thirty wood species were exposed to subterranean termite Macrotermes gilvus (Hagen) for 14 weeks (3.5 months) in a rural area of Cikampek and in an arboretum of the Centre for Forest and Natural Conservation Research and Development located in Janlapa, Bogor. To accelerate the termite attack, a piece of corru- gated paper was inserted in each layer of wood arrangements in the bundles. in Cikampek, the wood samples were directly exposed to an active colony of the termite species. Meanwhile, in Jalanpa such test method was not conducted because the experiment formerly was not designated to this termite species. Thus, the attack by this termite species was probably occured by chance only.the result of the experiment showed that, excepl the damage degree, there was no significant difference in the pauern of termite attack between the test samples exposed in the two locations. Here, most stake tests exposed in Cikampek were more severely infested than those in Jalanpa. From the two test sites, it can be concluded that aboui 37% (Aglaia versteeghii , Hopea odorata, Khaya anthothcca, Mimusop elingi, Neonauclea spec, Planchonia valida, Quercus turbinata, Eucalyptus urophylla, Eugenia lincata, E. polyantha, and Podocarpus blumei, 13% (Altingia excelsa, Castanopsis javanica, Shorea seminis, Swintonia glauca), 20% (Calophyllum inophyllum, Dacrydium becarii, Gluta walichii, Heritiera javanica, Peronema canescens, and Shorea platy- clados), 23 % (Agathis philippinensis, Anthocephalus cadamba, Anthocephalus spec., Eucalyptus alba, Gluta renghas, G, rostrata, Shorea meristopteryx.), and 7 % (Elaeocarpus sphaericus; Laplacea subintegerrima) might be respectively classified highly resistant, resistant, moderately resistant, less resistant, and perishable to the termite attack.

ANTAGONISME ANTARA KUMBANG AMBROSIA XYLEBORUS SP. DAN JAMUR BIRU YANG MENYERANG DOLOK TUSAM (PINUS MERKUSII) Paimin Sukartana
Jurnal Penelitian Hasil Hutan Vol 12, No 4 (1994): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.1994.12.4.117-120

Freshly cut logs of tusam (Pinus merkusii) are very susceptible to the infestation of the ambrosia beetle Xyleborus sp. and blue stain fungi. An observation showed that both wood deteriorating organisms might infest a same log simultaneously, but they did not inhabit the same area. They have their own area which are separated from one to another. There is an indication that any parts of logs having been infested by the fungi will not be suitable any more for the beetle's host. It seems that the ambrosia beetle is deterred or repelled by the presence of the blue stain fungi infestation, or at least, the beetle responds unfavorably to the fungi.

EFEKTIVITAS PENULARAN BEBERAPA ISOLAT JAMUR PATOGEN SERANGGA Metarbizium anisopliae OLEH RAYAP PEKERJA Coptotermes curvignathus Neo Endra Lelana; Paimin Sukartana; Agus Ismanto; Rusti Rushelia
Jurnal Penelitian Hasil Hutan Vol 24, No 3 (2006): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Jamur patogen serangga Metarhizium anisopliae diketahui bersifat patogen terhadap banyak serangga termasuk rayap. Penularan terjadi melalui penyebaran spora. Efektivitas penularan oleh kasta rayap pekerja Coptotermes curvignathus yang telah terinfeksi spora jamur dari 6 isolat yang dikumpulkan dari berbagai lokasi di Jawa dievaluasi. Beberapa kelompok rayap yang terdiri dari campuran rayap pekerja yang terinfeksi spora dan yang sehat dimasukkan dalam botol kultur berisi media pasir steril yang lembab, diinkubasi dalam ruang gelap dan lembab pada suhu kamar selama 14 hari. Hasil penelitian menunjukkan bahwa persentase mortalitas rayap cenderung meningkat setelah inkubasi dibandingkan dengan sebelum inkubasi. Isolat dari Balai Penelitian Bioteknologi Perkebunan Bogor (BGR), Fakultas Pertanian Universitas Gajah Mada Yogyakarta (UGM)p dan Balai Proteksi Tanaman Perkebunan Semarang (SMG) menunjukkan efektivitas penularan yang tinggi, menyebabkan mortalitas rayap lebih dari 80% pada perlakuan rayap terinfeksi dengan konsentrasi 50%. Isolat dari Bogor tampaknya paling efektif untuk ditularkan oleh rayap pekerja ke dalam koloninya.

POLA PENYEBARAN SERANGAN RINTISAN KUMBANG AMBROSIA PLATYPUS TREPANATUS PADA DOLOK KAYU RAMIN Paimin Sukartana; A Martawijaya
Jurnal Penelitian Hasil Hutan Vol 4, No 4 (1987): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.1987.4.4.1-3

The distribution pattern of the initial attack of ambrosia beetles Platypus trepanatus Chap. (Coleoptera: Platypodidae) on ramin logs (Gonystylus bancanus Kurz.s ) was studied. Six fresh cut test logs, each of about 25 cm in diameter and 50 cm in length, were barked and horizontally kept in a row of 20 cm apart at about 75 cm above the ground on a pair of sleepers. The surface of each log was longitudinally divided into eight equal parts, i.e. two single ones of the top and bottom face and three paired others situated of the upper sides, sides, and lower sides.The result showed that the attacks were not equally scattered over the whole face of the logs. The most violent attack was found on both the upper side parts. The number of tunnels on these parts were significantly different than those on the others. The lighter infested parts were respectively recorded on the side, top, lower sides, and bottom face of the logs. More than 90% of the initial infestations were concentrated on the upper side and side parts, covering 50% of the surface area of a log.

SERANGAN KUMBANG AMBROSIA PLATYPUS TREPANATUS PADA DOLOK RAMIN Paimin Sukartana
Jurnal Penelitian Hasil Hutan Vol 5, No 2 (1988): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

The infestations of ambrosia beetle Platypus trepanatus Chap. (Coleoptera: Platypodidae) on felled ramin trees (Gonystylus bancanus Kurz.) were studied in a logging area of West Kalimantan. Three felled ramin trees, d.b.h, approximately 25 cm, were prepared for the beetle infestations on their felling sites for 20 days. Six sections of each trunk, each of 0.5 m length, which were consecutively arranged at intervals 2.0 m started from the basal, were observed. Number of the beetle tunnels on each trunk section were counted, and diameter, area of surface, and volume of the trunk sections, were measured.More tunnels were found on the larger diameter of trunk sections. However, analyses of the data showed no discernible trends for the intensity of the beetle attacks in different trunk sections and that the size as well. Those, the increasing number of the tunnels of the beetle is in lines with the increase of the host sizes.

SERANGAN SERANGGA PERUSAK PADA CONTOH KAYU DI GUDANG PUSAT PENELITIAN DAN PENGEMBANGAN HASIL HUTAN DAN SOSIAL EKONOMI KEHUTANAN BOGOR Paimin Sukartana
Jurnal Penelitian Hasil Hutan Vol 13, No 3 (1995): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Since establishment in around 1920, Forest Products and Forestry Socio-economics Research and Development Centre (FPFSRDC) Bogor, Indonesia continuosly collects various wood samples from throughout the country's forest for experimental purposes. Some wood specimens were kept in xylarium as xylotheca, and some others, the rest of experimental samples, were kept in storeroom.An observation was conducted to evaluate deterioration of the wood samples kept in storeroom caused by dry-wood termites, powder-post beetles and pin-hole borers. Of the 464 pieces of wood samples representing 84 wood species, number of samples attacked by dry- wood termites and pin-hole borers was much higher than that by powder-post beetles. Evaluation of the deteriorating grade of the wood samples having been mostly stored for more than 30 years caused by the termites infestation showed that about 37 and 45 %, each represents 38 and 24 wood species, of the wood samples could be respectively categorized into very resistant and resistant, the rest, about 10, 5 and 1 %, each of 15, 6 and 2 species, were classified as moderate, not resistant and very not resistant. Among the highly resistant wood group, 27 species were uninfested at all.Deteriorating grade caused by the pin-hole borers beetles was not recorded, but it seems to be not so important than that caused by the other pests. Even though powder-post beetles only infested a small number of the wood species, they caused heavy damage to their hosts.

MORFOLOGI LUBANG GEREK DAN PERKEMBANGAN KUMBANG AMBROSIA XYLEBORUS SP. YANG DIPELIHARA PADA MEDIA BUATAN Paimin Sukartana
Jurnal Penelitian Hasil Hutan Vol 6, No 4 (1989): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Females of ambrosia beetle Xyleborus sp., one of the most destructive wood boring insects on lone logs (Pinus merkusii), were reared on rubberwood sawdust base media. The media were frepared in test tubes and one famale pertube was then introduced. These cultures were maintained in a dark room at 28°C and 70 % RH for 40 days. Observations were made for number of branches and length of galleries system through the tube walls, and number of progenies produced by the beetles after the media were dissected.It was shown that of the 22 culture tubes, 18 tubes were developed. Most of the beetles extensively tunneled to and fro criss-cross within the media. Mean branch number and gallery length were 16. 7 junction and 46.4 cm tracks ranging 0 - 33 and 0 - 52 respectively. The average of progeny number was 47.9 per tube with one male for about 14. 7 females. It seemed that both number of branches and length of galleries system indicatively correspond to the level of the beetle fecundity.

ESTIMATING THE DETBBIORATION OF RAMIN LOGS GAUSED BY THE AMEROSIA BEEILE PLATYPUS TREPANATUB CHAP. (COLEOPTERA: PLATYPODIDAR)ⁱ Paimin sukartana
Jurnal Penelitian Hasil Hutan Vol 9, No 2 (1991): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Kerusakan dolok karena serangan kumbang ambrosia Platypus trepanatus Chap. (Coleoptera:’Platy pedidas) termasuk masalah terpenting dalam usaha penebangan pohon ramin (Gonystylus baneanus kurs.) selama ini penentuan derajatkerusakan karena serangan kumbang penggerek tersebut hanya dihitung berdasarkan jumlah lubang gerak yang terdapat pada permukaan dolok. Tampa memperhatikan perkembangan serangan di dalamny.Suatu metode penelitian dihembangkan perkembangan untuk menentukan tingkat kerusakan kayu berdasarkan pols penembusan lubang gerek serangan kumbang di dalam dolok. Dalam penelitian ini dilalukan penghitungan jumlah lubang gerak yang menembus dolok pada berbagai tingkat kedalaman.hasil analisis menunjukkan bahwa persamaan regrasi Y = 97,91+ 26,53X 10,51X2+0, 71X3dimana: Y =nisbah jumlah lubang gerek pada tiap tingkat kedalaman terhadap jumlah lubang pada permukaandolok (%) X= kedalaman bagian kayu dari permukaan dolok (cm)dapat digunakan sebagai dasar perhitungan tingkat kerusakan atau renderaen dolok ramin yang diserang oleh kumbang penggerek tersebut.

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