Fuad Nurdiansyah
Plant Protection, Jambi University, Mandalo Indah, Jambi, 36361, Indonesia

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Quality Control of Mass Rearing of Egg Parasitoids of Yellow Rice Stem Borer Scirpophaga Incertulas Walker Wilyus, Wilyus; Nurdiansyah, Fuad; Herlinda, Siti; Irsan, Chandra; Pujiastuti, Yulia
International Journal on Advanced Science, Engineering and Information Technology Vol 3, No 1 (2013)
Publisher : International Journal on Advanced Science, Engineering and Information Technology

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Abstract

The study was conducted to find out: suitability of eggs of Corcyra cephlalonica Stainton as a factitious host of S. incertulas egg parasitoids and techniques of parasitoid stock provision, serially conducted from February 2011 to December 2011. The researches were carried out in four laboratory experiments, consisting of the study of ultraviolet (UV) irradiation on C. cephalonica eggs; suitability of C. cephlalonica eggs as a factitious host of Telenomus rowani Gahan, Trichogramma japonicum Ashmead and Tetrastichus schoenobii Ferriere; storage method of C. cephalonica eggs; and storage method of parasitoids. The research design was suited to the research needs. The results showed that; The C. cephalonica eggs irradiated by the minimum of 28.48 minute 15 watt ultraviolet (UV) at a distance +15 cm between the lamp and the eggs could suppress the hatching eggs to zero (no emerged larvae). Among the three species of egg parasitoids of S. incertulas found in Jambi Province, only T. japonicum could be rearing on C. cephalonica eggs. The relationship between storage duration of C. cephalonica eggs irradiated by the 30 minutes 15 watts UV at 5oC and the emerged T. japonicum wasps was expressed by the equation of y = 31.04-1.151x, R²=0.865, P=0.000. The storage of T. japonicum pupae for six weeks at 5°C did not reduce the number of emerged T. japonicum wasps. The emerged wasps reduced significantly if the storage duration of T. japonicum pupae was increased to seven weeks or more.
POTENSI PARASITOID TELUR PENGGEREK BATANG PADI KUNING Scirpophaga incertulas Walker PADA BEBERAPA TIPOLOGI LAHAN DI PROVINSI JAMBI Wilyus, .; Nurdiansyah, Fuad; Herlinda, Siti; Irsan, Chandra; Pujiastuti, Yulia
JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA Vol 12, No 1 (2012): Maret, Jurnal Hama dan Penyakit Tumbuhan Tropika
Publisher : Universitas Lampung

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Abstract

The research was conducted to analyze the diversity, dispersal and domination of the egg parasitoid species of the yellow rice stem borer Scirpophaga incertulas Walker on several land typologies in Jambi Province.  The study was conducted by survey method, from December 2010 until June 2011.  Samples of egg parasitoids of S. incertulas were collected by baiting parasitoids with eggs of S. incertulas.  The results of the research showed that there were three spesies of the egg parasitoids of S. incertulas found in Jambi Province, the most dominant was Telenomus rowani Gahan, followed by Trichogramma japonicum Ashmead and Tetrastichus schoenobii Ferriere. T. rowani and T. japonicum were found in all wetland ecosystems in Jambi Province (tidal swamp, swampy area, rainfed lowland, lowland technical irrigation, and upland technical irrigation), while T. schoenobii was found only in tidal swamp, swampy area, and lowland technical irrigation.  The highest species diversity of egg parasitoid of S. incertulas was found on tidal swamp (Shannon index 1.047), followed by swampy area, lowland technical irrigation, rainfed and upland technical irrigation area.  The average of proportion of egg masses parasitized by T. rowani, T. japonicum and T. Schoenobii were 22.58, 6.18 and 2.68% respectively. The average of individual eggs parasitized by T. rowani, T. schoenobii, and T. japnicum were 8.41, 1.67 and 1.47%   respectively.
Keanekaragaman, Dominasi, Persebaran Spesies Penggerek Batang Padi dan Serangannya pada Berbagai Tipologi Lahan di Provinsi Jambi Wilyus, .; Nurdiansyah, Fuad; Johari, Asni; Herlinda, Siti; Irsan, Chandra; Pujiastuti, Yulia
JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA Vol 13, No 1 (2013): Maret, Jurnal Hama dan Penyakit Tumbuhan Tropika
Publisher : Universitas Lampung

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Abstract

Diversity, domination, and distribution of rice stem borer species and its damage in various land typologies in Jambi Province.  The research was conducted to analyze the diversity, domination, species distribution of rice stem borers (RSB) and its damage on various land typologies in Jambi Province.  The research was carried out using survey method, from December 2010 until June 2011.  Samples of RSB were collected from tidal swamp in Tanjung Jabung Timur District, swampy area in Muaro Jambi District, rainfed lowland in Sarolangun District, irrigated lowland in Merangin District, and irrigated upland in Kerinci District and Sungai Penuh District.  The results showed that there were five spesies of  RSB found in Jambi Province.  Scirpophaga  incertulas Walker (yellow stem borer) was the most dominant of RSB, followed by Sesamia inferens Walker (pink stem borer), Chilo suppressalis Walker (striped stem borer), Chilo polychrysus Meyrick (dark-headed stem borer), and Scirpophaga innotata Walker (white stem borer).  The distribution of S. incertulas, S. inferens, C. suppressalis and C. polychrysus were in all of rice field in Jambi Province, but that of S. innotata was limited over tidal swamp and  rainfield  lowland area. The RSB damage rate was lower than economic thereshold.