Endophytic fungi is a group fungi that can be developed as a biological control agent. of endophytic fungi of Potency for agricultural crop has been discovered widely rare for forest trees The study was conducted to find out the , but still. antagonistic groups agains pathogen Fusarium sp. Fusarium is a casual agent of dumping-off on sengon tree. The highest average of inhibition after seven day incubation shown by Trichoderma harzianum Bio1999, was s was 46.36% followed by isolates of Aspergillus sp.

The role of plantation forests will become more important in the future, along with the increasing demand for wood. However, pest infestation problems may represent significant obstacles to the development of sustainable forest plantations. Bagworms are one of the most important pests in Indonesian plantation forests. Outbreaks of bagworms have occurred in different tree species for wood or non-wood resources. This paper presents the first review of bagworms in Indonesian plantation forests. This review presents the diversity of bagworms, their pest status, and the factors affecting the outbreaks. More than 70 bagworm species were recorded in Indonesia, which is higher than the species richness recorded in neighboring countries. The subfamily Oiketicinae has the highest number of species, followed by Typhoniinae and Taleporiinae. The highest bagworm richness has been recorded in Western Indonesia, except for Papua, where many new species have recently been described. More than 10 species of bagworms have been reported as pests in Indonesian forest trees. Pteroma plagiophleps is currently considered the most important pest in the forestry sector because of the wide range of forest trees used as hosts. Bagworm outbreaks have been reported in forest trees since 1924. The first outbreak occurred only in pines in Sumatra. Currently, outbreaks occur in more host plants and on other islands. Bagworm outbreaks are influenced by multiple factors, such as the biology of the bagworms, their host plants and natural enemies, climate, and silvicultural practices.

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Sengon has become one of the preferred tree because it has many advantages over other commercial tree species. It was widely cultivated with a monoculture system, like agricultural cultivation. The consequence of monoculture planting system was the unstable microclimate environment, so the ecosystem was susceptible to the pest and disease explosion. As happens at the Ciater plantation site, sengon plants were attacked by pests and diseases. The purpose of research were to study the extent data and intensity of boktor pests and tumor rust disease, boktor pest and bioecological behavior causing tumor rust on sengon as a protective and shade plant. The percentage and intensity of attacks caused by boktor pests and tumor rust disease was relatively high. The lowest percentage of boktor attacks was 40% and the highest was 90%. It could be categorized as serious severity, even dead plants. The percentage and intensity of the attacks indicated that the pests living on sengon could thrive in suitable food sources. Likewise with the percentage and intensity of attacks caused by rust disease has reached 100%, so it could be categorized as the level of damage was high.Keywords: boktor pests, intensity of attack, percentage, sengon, tumor rust disease . ABSTRAK          Sengon salah satu pohon yang memiliki banyak keunggulan dibandingkan jenis pohon lainnya dan banyak dibudidayakan secara luas dengan sistem monokultur seperti budidaya pertanian. Konsekuensi sistem tanam monokultur adalah lingkungan mikroklimat yang tidak stabil, sehingga ekosistemnya rentan terhadap hama dan penyakit. Tujuan dari penelitian ini, untuk memperoleh data luas dan intensitas serangan hama boktor dan penyakit karat tumor, perilaku hama boktor dan bioekologi penyebab penyakit karat tumor pada sengon. Metode yang digunakan adalah pengamatan visual setiap tegakan yang terserang oleh hama boktor dan penyakit karat tumor. Persentase dan intensitas serangan akibat hama dan penyakit ini relatif tinggi, untuk hama boktor persentase dan intensitas terendah 40% yang tertinggi 90%, sehingga dapat dikategorikan tingkat keparahan berat, bahkan ada tanaman yang mati. Persentase dan intensitas serangan tersebut menunjukkan bahwa hama yang hidup pada tegakan sengon berkembang dengan sumber makanan yang cocok. Begitu juga dengan persentase dan intensitas serangan akibat penyakit karat tumor sudah mencapai 100%, sehingga dapat dikategorikan tingkat keparahan yang tergolong berat. Kata Kunci : boktor, intensitas serangan, karat tumor, persentase serangan, sengon.