Parasitism of egg parasitoid of yellow rice stemborer (YRSB) Scirpophaga incertulas Walker (Lepidoptera; Pyralidae)
1994
Nurbaeti, B. | Soenaryo, E. | Waluyo (Balai Penelitian Tanaman Pangan, Bogor (Indonesia))
English. This study was conducted in wet season 1991/92 in Cinangneng-Bogor. The objectives of this experiment were determining of species composition, domination and parasitism rate of egg parasitoid of YRSB. Assessment of the YRSB was done in 1 m plot containing 16 plants. Five replications were used for every sampling date. Identifying and counting of the individuals of the YRSB egg parasitoids were done in Entomology Laboratory of BORIF. Three species of parasitoids were identified during this experiment, i.e., Tetrastichus schoenobii Ferriere, Telenomus rowani Gahan, and Trichogramma japonicum Ashmead, with difference in parasitism rate. Total parasitism rate of these parasitoids was about 70 percent. T schoenobii was the most dominant parasitoid and very effective to control YRSB. It's ability to control egg population was more than 50 percent T. rowani was about 15-18 percent, and T. japonicum was about 2-8 percent
Show more [+] Less [-]unknown. Studi parasitisme parasitoid telur PBPK dilakukan di daerah Cinangneng-Bogor selama musim hujan (MH) 1991/92. Tujuan dari studi ini adalah untuk mengetahui jenis, komposisi, dominasi, dan tingkat parasitisme parasitoid telur PBPK. Studi dilakukan dengan menggunakan metode survey pada hamparan sawah yang luasnya 75 ha. Pengamatan kelompok telur dilakukan satu minggu sekali pada stadia tanaman umur 1 sampai 10 mst. Percontohan untuk masing-masing stadia ditetapkan dengan menentukan petak sawah ukuran 1 m x 1 m sebanyak 5 petak pada luasan 400 m. Kelompok telur PBPK yang terkumpul dipelihara dan diamati di laboratorium. Total parasitisme oleh ketiga jenis parasitoid yang ditemukan (T. schoenobii, T. rowani, dan T. japonicum) lebih dari 70 persen. T. schoenobii merupakan parasitoid yang paling dominan dan efektif menekan perkembangan telur PBPK. Tingkat parasitisme T. schoenobii lebih dari 50 persen, T. rowani 15-18 persen, dan T. japonicum 2-8 persen
Show more [+] Less [-]AGROVOC Keywords
Bibliographic information
This bibliographic record has been provided by Indonesian Center for Agricultural Library and Technology Dissemination