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Observasi dan identifikasi Penyakit Jamur Akar pada Tanaman Pala di Kabupaten Aceh Selatan Rita Harni; Iwa Mara Trisawa; Agus Wahyudi
Jurnal Tanaman Industri dan Penyegar Vol 2, No 3 (2011): Buletin Riset Tanaman Rempah dan Aneka Tanaman Industri
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

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Abstract

Nutmeg has important role to the national economiy because of export of the product. White root disease is the main constraint in nutmeg production. The objective of this research was observation and identification of the attack and intensity causes respectively. The research conducted in April to July 2011 on farmer’s farm and on phytopathology laboratory of Indonesian Spices and Industrial Crops Research Institute Sukabumi. Survey has been done in five sub-districts namely, Tapak Tuan (Air Berudang and Air Pinang village), Sawang (Simpang Tiga and Lhok Pawoh), Meukek (Alue Meutuah dan Blang Kuala), Labuan Haji Timur (Gunung Rotan dan Keumumu Hilir), and Kluet Utara (Gunung Pulo dan Krueng Batu). Observation was done on persentage of attacks, symptoms of pests and diseases, and soil condition. The samples were taken from the root, stem and soil then isolated and identified conventionaly and molecularly in laboratory. The results showed that cause of the death of nutmeg plant was white root fungus caused by Rigidoporus microporus with attcak intensity from 5% to 100%.
PENGELOLAAN SERANGGA-SERANGGA YANG BERASOSIASI DENGAN TANAMAN JAMBU METE Funny Soesanthy; Iwa Mara Trisawa
Jurnal Tanaman Industri dan Penyegar Vol 2, No 2 (2011): Buletin Riset Tanaman Rempah Dan Aneka Tanaman Industri
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

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Abstract

Several kinds of insects associated with cashew plant. These insects are grouped into phytophagous insects, natural enemies (parasitoids and predators) and pollinators. Phytophagous Insects such as Helopeltis spp., Sanurus indecora, Placoderus ferrugineus, Anastrepha fraterculus, and Cricula trifenestrata were reported become a constraint on the production of cashew in Indonesia and several other countries. The natural enemies are egg parasitoid like Mesocomis orientalis, Trichogramma sp. and Aphanomerus sp, pupae parasitoid like Brachymeria sp. and Tetrastichus sp. and adult parasitoids from family Epipyropidae, while predators like ants, Chilomenes lunata Sphodromantis lineola, Tarachodes afzelii, and Amorphoscelis sp. In addition to natural enemies, the presence of insect pollinators such as Apis mellifera and Centris tarsata are very important considering cashew require insect assistances for the formation of fruit. Knowledge of the complex associations between insects and cashews need to know to their management strategies in the fields. Phytophagous insect management are directed to efforts at suppression their population by maximizing the role of natural enemies. Cashew ecosystem manipulation techniques such as management of wild vegetation, pruning, and intercropping can be developed to encourage the role of natural enemies better. The technique is als o expected to attract pollinating insects visiting the cashew crop. In addition, actions that could disrupt the natural life such as the use of insecticides should be reduced. Insecticides are used only if the role of natural enemies was less successful and populations of phytophagous insects are at the level of adverse. Periodic monitoring of insects associated with cashew nuts to be an important key to making subsequent decisions. 
TEKNOLOGI PENGENDALIAN HAYATI HAMA PENGHISAP PUCUK DAN BUNGA PADA JAMBU METE Samsudin .; Iwa Mara Trisawa
Jurnal Tanaman Industri dan Penyegar Vol 2, No 2 (2011): Buletin Riset Tanaman Rempah Dan Aneka Tanaman Industri
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

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Abstract

The major pests of cashew plant (Anacardium occidentale L.) are Helopeltis spp.  and Sanurus spp. A number of cashew trees damaged be  attacked by the pest are increasing from year to year. Some research found on effectiveness technologies, environmentally friendly and easily adopted by farmers have been done. One kind of controlling technologies that provides great expectations to be developed by farmers was biological control by utilizing parasitoids, predators and pathogens. Development of rangrang ants (Oecophylla smaragdina) and the fungus Beauveria bassiana as biological agent of Helopeltis spp. on a large scale will suppress the population of the insects. Meanwhile, the egg parasitoid Aphanomerus sp., moth parasitoids Epieurybrachys nsp. and the fungus Synnematium sp. are potentially developed as a biological control agents for Sanurus spp. in the field. The results of these studies should be integrated as a technology package on which the farmers should be involved in implementation of the technology.