Populasi Parasitoid Larva Pada Masa Tanam Berbeda di Lahan Tebu Kebun Tandem Hulu PTPN II Sei Semayang

Population Parasitoid of Larva in Different Planting Period in Tandem Hulu Plantation Land of PTPN II Sei Semayang

  • Elfrida Sari Sinaga Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Sumatera Utara, Medan 20155, Indonesia
  • Maryani Cyccu Tobing Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Sumatera Utara, Medan 20155, Indonesia
  • Lisnawita Program Studi Agroekoteknologi, Fakultas Pertanian, Universitas Sumatera Utara, Medan 20155, Indonesia
Keywords: parasitoid, Apantheles flavipes, planting period, sugarcane, masa tanam, tebu

Abstract

Parasitoids have been introduced in PTPN II Sei Semayang to control various pests that attack the crops.This research aims to determine the diversity of parasitoid species in sugarcane fields. This research was carried out at Central research and Development of Sugarcane Crop Sei Semayang PTPN II. The method of this research used Randomized Block Design non factorial which consists of 6 planting periods (block):early April (block I), early May (block II), early June (block III), end of April (IV), end of May (V),and end of June (VI) with eight replications.The results showed that Apanthales flavipes was a parasitoid found in the field with different amounts at each block. Block I was 212 populatios, block II was 218 populations, block II was 266 populations, block IV was 187 populations, block V 194 populations, and block VI 348 populations. The highest percentage of a A. flavipes parasilization was found in block VI 1.25% and lowest percentage in block I 0.75%. The sex ratio of parasitoids : 406 males and 1,019 females.

Berbagai parasitoid telah diintroduksi di PTPN II Sei Semayang untuk mengendalikan berbagai macam hama yang menyerang tanaman. Penelitian ini dilaksanakan di Balai Riset dan Pengembangan Tanaman Tebu PTPN II Sei Semayang. Metode yang digunakan adalah Rancangan Acak Kelompok (RAK) non faktorial yang terdiri dari 6 masa tanam (blok) yaitu masa tanam awal april (I), masa tanam awal mei (II), masa tanam awal juni (III), masa tanam akhir april (IV), masa tanam akhir mei (V) dan masa tanam akhir juni (VI) dengan 8 ulangan.Hasil penelitian menunjukkan bahwa Apanthelesflavipes merupakan parasitoid yang ditemukan di lapangan dengan jumlah berbeda pada setiap blok. Blok I sebanyak 212 ekor, blok II sebanyak 218 ekor, blok III sebanyak 266 ekor, blok IV sebanyak 187 ekor, blok V sebanyak 194 ekor, dan blok VI sebanyak 348 ekor. Persentase parasitisasi A.flavipes tertinggi terdapat pada VIblok yaitu sebesar 1,25 % dan persentasi terendah pada blok I yaitu 0,75%. Nisbah kelamin parasitoid yang diperoleh : 406 jantan dan 1.019 betina.

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Published
2019-06-27