Academic literature on the topic 'Dasynus piperis China'

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Journal articles on the topic "Dasynus piperis China"

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Apriyadi, Rion, and Tri Lestari. "Pengaruh Teknik Pengendalian Gulma dan Frekuensi Aplikasi Insektisida terhadap Kelimpahan Populasi dan Intensitas Serangan Hama Utama pada Tanaman Lada (Piper nigrum L.)." AGROSAINSTEK: Jurnal Ilmu dan Teknologi Pertanian 5, no. 1 (June 30, 2021): 64–71. http://dx.doi.org/10.33019/agrosainstek.v5i1.241.

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Pengendalian penggerek batang lada Lophobaris piperis Marsh (Coleoptera: Curculionidae) dan penghisap buah lada Dasynus piperis China (Hemiptera: Coreidae) dapat dilakukan dengan menggunakan teknik aplikasi insektisida dan pengendalian secara kultur teknis. Penelitian ini bertujuan untuk mengetahui pengaruh teknik frekuensi aplikasi insektisida kimia dan teknik pengendalian gulma terhadap kelimpahan dan intensitas kerusakan yang diakibatkan oleh hama Lophobaris piperis Marsh and Dasynus piperis China pada tanaman lada. Penelitian dilaksanakan di kebun petani lokal dengan kriteria kebun yang dipilih berupa kombinasi antara teknik pengendalian gulma dengan metode penyiangan, herbisida dan tanaman penutup Arachis pintoi Krap. & Greg. serta frekuensi aplikasi insektisida sebanyak 2 kali dan 4 kali setahun. Hasil penelitian mendapatkan bahwa kelimpahan hama tertinggi terdapat pada kebun lada yang menerapkan teknik pengendalian gulma menggunakan penyiangan dan aplikasi herbisida yang dikombinasikan dengan aplikasi insektisida sebanyak 4 kali setahun. Intensitas kerusakan mutlak dan intensitas kerusakan relatif tertinggi ditemukan pada kebun lada dengan aplikasi insektisida sebanyak 2 kali setahun. Intensitas kerusakan cenderung menurun pada kebun lada yang menerapkan teknik pengendalian gulma menggunakan tanaman A. pintoi.
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2

TRISAWA, IM, AUNU RAUF, and UTOMO KARTOSUWONDO. "Biologi Parasitoid Anastatus dasyni Ferr (Hymenoptera: Eupelmidae) pada Telur Dasynus piperis China (Hemiptera: Coreidae)." HAYATI Journal of Biosciences 14, no. 3 (September 2007): 81–86. http://dx.doi.org/10.4308/hjb.14.3.81.

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3

TRISAWA, IWA M., A. RAUF, U. KARTOSUWONDO, N. MARYANA, and A. NURMANSYAH. "KESESUAIAN TELUR KEPIK KEDELAI UNTUK PEMBIAKAN MASSAL Anastatus dasyni FERR. (HYMENOPTERA: EUPELMIDAE), PARASITOID TELUR KEPIK LADA." Jurnal Penelitian Tanaman Industri 16, no. 3 (June 19, 2020): 119. http://dx.doi.org/10.21082/jlittri.v16n3.2010.119-125.

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<p>ABSTRAK</p><p>Anastatus dasyni Ferr. adalah parasitoid telur kepik lada, Dasynuspiperis China. Penelitian bertujuan mengkaji kesesuaian telur kepikkedelai Riptortus linearis dan Nezara viridula sebagai inang untukpembiakan massal parasitoid A. dasyni. Imago parasitoid A. dasyni yangberasal dari lapangan dipelihara secara terpisah pada telur dari kedua jeniskepik kedelai. Pengamatan dilakukan terhadap biologi A. dasyni yangmeliputi masa perkembangan pradewasa dan berbagai parameter kehi-dupan imago betina. Selain itu, dilakukan analisis neraca hayati denganmenggabungkan data perkembangan dan sintasan pradewasa, masa hidupimago dan reproduksi, serta nisbah kelamin. Hasil penelitian menunjukkanbahwa masa perkembangan larva dan pupa A dasyni pada telur N. viridulalebih singkat serta laju peneluran lebih tinggi dibandingkan pada telur R.linearis. Imago betina A. dasyni yang keluar dari telur N. viridula hanya1,81%, sedangkan dari telur R. linearis sebanyak 70,20%. Oleh karena itu,parameter neraca hayati hanya dapat dihitung dari parasitoid yangdipelihara pada telur R. linearis. Laju pertambahan intrinsik parasitoidadalah (r) 0,1870, masa generasi (T) 27,51 hari, reproduksi bersih (Ro)84,29, laju pertambahan terbatas (λ) 1,21, dan nilai reproduksi (RVx)402,51. Proporsi persebaran usia stabil (px) adalah 17,06% telur, 50,41%larva, 26,53% pupa, dan 6,02% imago. Telur kepik kedelai R. linearisdapat digunakan untuk pembiakan massal A. dasyni.</p><p>Kata kunci : Anastatus dasyni, Dasynus piperis, Riptortus linearis,Nezara viridula, parasitoid, pembiakan massal</p><p>ABSTRACT</p><p>Suitability of soybean bug eggs for mass rearing ofAnastatus dasyni Ferr. (Hymenoptera: Eupelmidae), anegg parasitoid of pepper bug</p><p>Anastatus dasyni Ferr. is an important egg parasitoid of pepper bug,Dasynus piperis China. Research was conducted with the objectives tostudy the suitability of eggs of soybean bugs Riptortus linearis and Nezaraviridula for mass rearing of A. dasyni. Adults of A. dasyni collected fromthe field were inoculated separately on eggs of two species of soybeanbugs. Biological parameters such as immature development and adultlongevity were observed daily. Lifetable parameters were calculated on thebasis of development and survival of immature, reproduction, and sexratio. Our studies revealed that parasitoid developing on Nezara viridulaeggs had shorter larval and pupal development and higher in ovipositionrate than those on Riptortus linearis eggs. However, parasitoids emergedfrom N. viridula eggs only 1.81% were females, while from R. lineariseggs were 70.20%. Therefore, lifetable parameters can only be generatedfrom parasitoid reared on R. linearis eggs. The intrinsic rate of increase (r)mean generation time (T) 0.1870, 27.51 days, 84.29, 1.21, and 402.51respectively net reproductive rate (Ro), finite rate of increase (λ), andreproductive value (RVx). The stable stage distribution (px) were 17,06%eggs, 50,41% larvae, 26,53% pupae, and 6,02% adults. Eggs of soybeanbug R. linearis can be used for mass rearing of parasitoid A. dasyni.</p><p>Key words : Anastatus dasyni, Dasynus piperis, Riptortus linearis,Nezara viridula, parasitoid, mass rearing</p>
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Laba, I. Wayan, D. Kilin, and Iwa Mara Trisawa. "Tingkat kerusakan dan serangan hama buah lada, Dasynus piperis china pada pertanaman lada di bangka." Jurnal Entomologi Indonesia 1, no. 1 (February 23, 2017): 34. http://dx.doi.org/10.5994/jei.1.1.34.

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Berry sucker insect pest, Dasynus piperis china (coreidae; Hemiptera) is one of the major insect pest on pepper. D. piperis to attack fruit of pepper with suck of fruit liquid and the final effect is empty to fruit and damaged. To find out of the level of damage and destruction caused by D. piperis have been done at 6 districts of Bangka Island namely Mendo Barat, Sungai Selan, Sungai Liat, Belinyu, Koba and Toboali since January to December 2002. For each district were observed 5 farmers field of estate crops. Every farmer field were observed tens plant of pepper in connection with fluctuation population and level of fruit damage. The observation have been done on the flower season of pepper, after flower season and after harvest. The result showed that fluctuation population and infested level of D. piperis at each observation almost the same, while among district were variated. The highest infestation was found in Sungai Selan, followed by Belinyu, and Mendo Barat namely 36.82;32.03 and 29.48 % respectively. The infestation level on Sungai Liat, Toboali and Koba were low namely 14;79.58 and 20.98 % respectively. The level of damage in Mendo Barat was highest than an other location namely 8.66; 8.07; 6.67; 5.71;4.89 and 3.09 % in Mendo Barat, Sungai Selan, Belinyu, Koba, Toboali and Sungai Liat respectively.
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5

ALWI, ASNIMAR, and DECIYANTO SOETOPO. "BIOLOGI Ooencyrtus malayensis Ferr. PARASITOID TELUR Dasynus piperis China, PADA INANG ALTERNATIF Nezara viridula L." Jurnal Penelitian Tanaman Industri 6, no. 3 (July 15, 2020): 61. http://dx.doi.org/10.21082/jlittri.v6n3.2000.61-65.

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<p><strong>Biology of egg parasitoid ('Ooencyrtus malayensis Ferr.) ofpepper bug on alternate egg host (Nezara viridula L)</strong></p><p>Pepper bug (Dasynus piperis China) is an important pest of pepper. The pest widely spread in most pepper plantations of Indonesia. The level of the pest attack varied depended on crop cultivation treatment. Ooencyrtus malayensis is one of natural enemies which is able to control the population of pepper bug in plantation. The objective of this research was to study some aspects of the egg parasitoid biology by using eggs of Nezara viridula as the alternate host. This research was designed in a completely randomized block with four replicates. Dasynus piperis was collected from Bangka island and reared in Laboratory of the Research Institute for Spice and Medicinal Crops (RISMC ). Nezara viridula was fed with cowpea bean. This reascarch was conducted from July 1998 to February 1999. Experiment was divided into seven steps such as oviposition. pre adult period, production of parasitoid per host egg. egg preference, infestation period effect of cold storage (4°C) and parasitoid population. Research results showed that there were 85.5 parasitoid produced during its life time. Pre adult period lasted from 12 to 16 days, alternate host produced 3 parasitoids. The parasitoid pefeed the host of 0-2 days old. The eggs could be stored for 25 days in a efrigenerator (4°C). The longer the infestation and the larger number of parsitoid infested the larger numbers of parasitoid produced.</p>
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Pribadi, Ekwasita Rini, I. Wayan Laba, Rohimatun Rohimatun, Kiki Yolanda, and Mahrita Willis. "KELAYAKAN EKONOMI PENGENDALIAN HAMA PENGISAP BUAH LADA (Dasynus piperis China) DENGAN INSEKTISIDA NABATI BERBAHAN AKTIF MINYAK SERAIWANGI DAN CENGKEH." Buletin Penelitian Tanaman Rempah dan Obat 26, no. 2 (June 20, 2016): 155. http://dx.doi.org/10.21082/bullittro.v26n2.2015.155-164.

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<p class="IsiabstrakIndonesia">Pengisap buah lada (<em>Dasynus piperis</em> China) merupakan salah satu hama utama lada, yang dapat dikendalikan dengan pestisida. Penelitian bertujuan untuk mengetahui kelayakan teknis dan ekonomi penggunaan minyak seraiwangi dan cengkeh dipadukan dengan pestisida sintetik untuk mengendalikan hama penghisap buah lada. Penelitian dilaksanakan di kebun petani di di desa Petaling, kecamatan Mendo Barat, Bangka pada lada berumur 4 tahun, sejak Pebruari sampai Oktober 2014. Penelitian menggunakan rancangan acak kelompok, terdiri dari lima perlakuan dan lima ulangan (1) minyak seraiwangi konsentrasi 2,5 ml l<sup>-1</sup> + minyak cengkeh 2,5 ml l<sup>-1</sup>; (2) minyak seraiwangi 2,5 ml l<sup>-1</sup> + fenil organophosphat (OF) 500 EC 1 ml l<sup>-1</sup>; (3) minyak cengkeh 2,5 ml l<sup>-1</sup> + fenil organophosphat (OF) 500 EC 1 ml<sup>-1</sup>; (4) fenil organophosphat (OF) 500 EC 2 ml l<sup>-1</sup>; (5) Kontrol. Masing-masing perlakuan diujikan pada lahan seluas 0,25 ha (1.250 tanaman). Data yang dikumpulkan adalah input-output usahatani, harga masukan dan keluaran berdasarkan harga pada saat penelitian dilakukan. Efisiensi teknis diukur berdasarkan produksi buah lada putih kering ha<sup>-1</sup> dan kelayakan ekonomi diukur berdasarkan <em>Net Present Value</em> (NPV), <em>Internal Rate of Return</em> (IRR), <em>Benefit Cost Ratio</em> (B/C). Hasil penelitian menunjukkan penggunaan pestisida sintetik OF menghasilkan kelayakan ekonomi yang terbesar ditunjukkan oleh B/C rasio 1,87 dan NPV Rp 281.357.916,- dan IRR sebesar 63%. Petani menyadari penggunaan insektisida nabati aman bagi lingkungan, tetapi mereka berpendapat kurang efektif dalam pengendalian hama lada. Hal tersebut karena cara aplikasi, perolehan insektisida nabati dan pengendalian dengan cara ini adalah sesuatu yang baru bagi petani lada di Bangka. Oleh karena itu pengembangan lebih lanjut perlu disertai dengan pelatihan cara pembuatan dan teknik aplikasi di lapang.</p>
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