INVENTARISASI HAMA KELAPA SAWIT ( Elaeis guineensis Jacq.) PADA DAERAH ENDEMIK SERANGAN DI KABUPATEN DHARMASRAYA

Suatu daerah dikatakan endemik apabila terdapat laporan serangan OPT tertentu dalam skala besar. Daerah endemik serangan hama kelapa sawit dapat menjadi pedoman dalam mempelajari tingkat serangan hama di daerah tertentu. Ketinggian serangan hama pada daerah tertentu dapat menjadi acuan dalam menentukan teknik pengendalian yang tepat. Penelitian ini bertujuan untuk mengetahui jenis hama yang menyerang tanaman kelapa sawit di daerah endemik Kabupaten Dharmasraya. Metode yang digunakan adalah purposive random sampling. Sedangkan untuk pengambilan sampel dilakukan dengan koleksi langsung menggunakan tangan. Hasil penelitian ini didapatkan sebanyak 353 individu serangga dari 4 ordo, 9 famili dan 14 spesies. Jumlah individu tertinggi berasal dari Coptotermes sp sedangkan yang terendah spesies Setora nitens. Berdasarkan hasil penelitian dapat disimpulkan bahwa keanekaragaman serangga endemik kelapa sawit menyerang sangat tinggi dengan total spesies yang ditemukan sebanyak 14 spesies.

Uji Kemampuan Pemangsaan Predator Eocanthecona furcellata Asal Riau pada Mangsa Ulat Api Setora nitens di Laboratorium

Oil palm is a major agricultural product and a mainstay sector as a source of income for people in Riau Province. Oil palm cultivation is inseparable from the pest attack Setora nitens. Control measures generally use synthetic insecticides. There needs to be an alternative in the control caterpillar pests fire Setora niten such as using the predator Eocanthecona furcellata. The objectives of this research were to obtain the predation rate and predation power of the predator Eocanthecona furcellata from Riau in control caterpillar pests fire Setora nitens at oil palm cultivation. The research was conducted in the laboratory of Plant Pest, Faculty of Agriculture, Riau University. This study consisted of 5 treatments with 5 replications so obtained 25 experimental units were placed in a completely randomized design (CRD). The treatments were A: 1 male, B: 1 female, C: 1 pair, D: 2 pairs, and E: 3 pairs of predator Eocanthecona furcellata. The results showed that the duration of prey handling of one caterpillar larva fire Setora nitens by predator Eocanthecona furcellata occurred for 3.18-6.24 hours. The treatment of three pairs of imago predators Eocanthecona furcellata is the best treatment, with a faster rate of predation and can prey on 66.00% of caterpillar fire.

ESTIMASI KEPADATAN ULAT API MELALUI METODE SAMPLING JARAK

Many types of pests which is found in oil palm plantations such as rats, bees and the caterpillars. Caterpillar and the bagworm, including a caterpillar eaters leaves oil palm plantations. This Research focuses on a caterpillar type Setora nitens at oil palm plantations Karya Tanah Subur in West Aceh. Many ways that has been done to overcome pests caterpillar in oil palm plantations from early monitoring and extermination caterpillar. To know the density caterpillar can be done by counting directly individual caterpillar or with other methods that in this research, the density caterpillar in the estimation through distance sampling techniques. Distance sampling is one of the methods used to estimate the density and the spread population. The sampling distance, a series point or lines are placed randomly on the districts census and measured the distance between individuals who were detected in handcuffs or this point. Ordered Distance, Point Quarter and Variable Area Transect the distance sampling method that used in the research. Based on the explanation, an extensive microinsurance is focused on the estimation density caterpillar using the distance sampling methods.Keywords: Setora nitens, Distance Sampling, Order Distance, Point Quarter, VariableArea Transect.

JENIS-JENIS HYMENOPTERA PARASITOID DAN PERSENTASE PARASITASI TERHADAP BERBAGAI ULAT PEMAKAN DAUN KELAPA SAWIT DI KEBUN CIKASUNGKA PTPN VIII, CINDALI, BOGOR

Minyak kelapa sawit adalah salah satu komoditas perkebunan diIndonesia dan telah tersebar luas di Indonesia. Salah satu hama yang menyerang kelapa sawit adalah serangga, dan hama yang paling merusak biasanya dari Lepidoptera. Tujuan dari penelitian ini adalah untuk menentukan parasitoid yang memparasitisasi hama pemakan daun kelapa sawit di perkebunan kelapa sawit PTPN VIII Cindali, Bogor. Penelitian dilakukan di 6 blok perkebunan kelapa sawit PTPN VIII Cindali dari September 2014 -Juni 2015 dengan pengamatan sebulan sekali. Sampel diambil dengan cara masing-masingblok diambil 5 tanaman di setiap plot secara acak untuk diamati dan serangga pemakan daun palem diambil untuk disimpan sampai parasitoid muncul. Parasitoid yang keluar kemudian dihitung dan diidentifikasi. Hasil penelitian menemukan 6 spesies hama pemakandaun palem dan 5 spesies Hymenoptera parasitoid yang memparasit hama ini. Hama yang ditemukan adalah Setora nitens, Amatissa sp., Birthosea bisura, Mahasena corbetti, Metisa plana dan Pseudococcus sp. Sedangkan parasitoid yang ditemukan adalah Spinaria spinator, Charops bicolor, Telenomus podisi, Aphanogmus sp. dan Acerophagus sp.

Setora nitens. [Distribution map].

A new distribution map is provided for Setora nitens Walker. Lepidoptera: Limacodidae (nettle caterpillar, stinging caterpillar). Attacks coconut, tea, oil palm. Information is given on the geographical distribution in Asia, Indonesia, Java, Sumatra, Malaysia, Singapore.

Setora nitens. [Distribution map].

A new distribution map is provided for Setora nitens (Wlk.) (Lep., Limacodidae). Host Plants: Coconut, Tea, etc. Information is given on the geographical distribution in ASIA, Brunei, Burma, China, India, Indonesia, Malaya, Sabah, Sarawak, Singapore, Vietnam, AUSTRALASIA and PACIFIC ISLANDS, Irian Jaya.