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All Journal Journal of Tropical Life Science : International Journal of Theoretical, Experimental, and Applied Life Sciences AGRIVITA, Journal of Agricultural Science Jurnal HPT (Hama Penyakit Tumbuhan)
Sri Karindah
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Agriculture, Biological Sciences & Forestry Environmental Science

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DIVERSITY OF ARTHROPODS ON COCOA PLANTATION IN THREE STRATA OF SHADE TREE Toana, Moh. Hibban; Mudjiono, Gatot; Karindah, Sri; Abadi, Abdul Latief
AGRIVITA, Journal of Agricultural Science Vol 36, No 2 (2014)
Publisher : Faculty of Agriculture University of Brawijaya and Indonesian Agronomic Assossiation

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Abstract

The Research was aimed to identifythe diversity of arthropods in Cocoa plantation inthree strataof shade tree. Research was conducted in Rahmat village, the sub-district of Palolo, District of Sigi, the Province of Central Sulawesi, Indonesia from December 2012 to June 2013.Berlese funnel, Pitfall, Malaise and Light trap were used to collect arthropod samples. There were five indices such as species richness (R), species evenness (E), species diversity (H`and D), and species similarity (Iss) to analyze the diversity of arthropods in cocoa plantations. The result showed that species richness (R) of arthropods under the two strata of shade tree, species evenness (E) and both of species diversity indices, Shannon (H`) & Simpson (D) was the highest, with value of 18,216, 0.839, 4.383, and 0.833 respectively. In addition, percentage of species similarity (Iss) was the highest under two strata of shade tree with value 72.297%.Keywords: arthropods, cocoa, species diversity, two strata of shadetree
Abundance of Metioche Vittalicollis ( Orthoptera:Gryllidae) and Natural Enemies in A Rice Agroecosystem as Influenced by Weed Species Sri Karindah; Bagyo Yanuwiadi; Liliek Sulistyowati; Peter T. Green
AGRIVITA, Journal of Agricultural Science Vol 33, No 2 (2011)
Publisher : Faculty of Agriculture University of Brawijaya in collaboration with PERAGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17503/agrivita.v33i2.55

Abstract

Weeds in the rice fields impact the population of M. vittaticollis and several predators on rice habitat. A study was conducted during rainy season 2004-2005 and dry season 2005, which selective weeding and weed strips were applied. In selective weeding, Monochoria vaginalis, Fimbristylis miliacea, Cyperus iria, and Limnocharis flava were left, and made a weed strip at the periphery of rice plot which was consisted of those four species. Clean weeding as farmers usually do was also applied as a control treatment. Results showed that the presence of weed plant species in the earlier planting season of dry season 2005 tended to maintain the population of the predatory insects of rice pests, in particularly M. vittaticollis and Anaxipha longipennis. Population of Ophionea nigrofasciata, Paederus spp. and Micraspis inops were not different among the treatment plots during rainy season (2004-2005) and dry season (2005). The species number of predator and parasitoids seemed to increase slower in the clean weeded plot in comparing with the species number in selectively weeded or weeds strips plot at early planting season. Rice yield in the experimental plots were not significantly different. Some weeds in the rice fields may not have adverse effects on rice productivity. Keywords : generalist predator, weeding, predatory cricket
PENGARUH Arachis pintoi DAN Ageratum conyzoides TERHADAP TINGKAT PARASITASI PARASITOID LALAT BUAH PADA PERTANAMAN BELIMBING Muhamad Luthfie Tri Meiadi; Toto Himawan; Sri Karindah
Jurnal HPT (Hama Penyakit Tumbuhan) Vol. 3 No. 1 (2015)
Publisher : Universitas Brawijaya

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ABSTRAK Lalat buah merupakan salah satu hama penting pada tanaman belimbing. Musuh alami lalat buah belum dimanfaatkan secara maksimal sebagai agens pengendalian hayati. Musuh alami lalat buah yang terpenting ialah parasitoid. Populasi parasitoid di lapangan sangat rendah karena kurang tersedianya lingkungan yang mendukung kehidupan parasitoid. Salah satu upaya konservasi parasitoid ialah penyediaan refugia. Penelitian ini bertujuan untuk mengetahui pengaruh Arachis pintoi Krapov. & W.C. Greg. dan Ageratum conyzoides Linn. terhadap jenis, jumlah, dan tingkat parasitasi parasitoid lalat buah pada tanaman belimbing. Penelitian ini menggunakan Rancangan Acak Kelompok yang terdiri dari tiga perlakuan. Parasitoid yang ditemukan memparasit Bactrocera carambolae Drew & Hancock ialah Fopius sp., Diachasmimorpha sp., dan Tetrastichus sp.. Rerata jumlah parasitoid lalat buah pada buah belimbing yang dikelilingi A. pintoi, A. pintoi dan A. conyzoides, serta kontrol masing-masing ialah 7,33, 7,43, dan 0,93 ekor/buah belimbing. Tingkat parasitasi parasitoid pada tanaman belimbing yang dikelilingi oleh A. pintoi, A. pintoi dan A. conyzoides, serta kontrol masing-masing ialah 24,87%, 20,94%, dan 3,64%. A. pintoi dan A. conyzoides tidak sesuai jika dikombinasikan karena dapat menurunkan tingkat parasitasi parasitoid pada B. carambolae. Kata Kunci: Musuh alami, Refugia, Bactrocera carambolae
The Influence of Environmental Factors to The Abundance of Scales (Hemiptera: Diaspididae) Population on Apple Crop Khojin Supriadi; Gatot Mudjiono; Abdul Latief Abadi; Sri Karindah
Journal of Tropical Life Science Vol. 5 No. 1 (2015)
Publisher : Journal of Tropical Life Science

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Abstract

This research aims to assess the environmental factors that affect the abundance of scales populations on the apple crop. The study was conducted in July 2012 to January 2013. The study was conducted at two sites with different altitude. Bumiaji village's altitude is ±900 m and Tulungrejo village's altitude is ±1,515 m asl. Multiple linear regression analysis was conducted to determine the environmental factors that affect the abundance of scales populations on the apple crop. Based on the results of the regression analysis, air temperature and humidity affect the abundance of scales populations in Binangun while rainfall and long solar radiation have no effect. Scales population abundance of the apple crop in Binangun was influenced by air temperature and humidity one week before. Based on the results of the regression analysis, air temperature, air humidity and rainfall affect the abun dance of scales population in Tulungrejo while long solar radiation has no effect. Scales population abundance ofthe apple crop in Tulungrejo was affected by air temperature two weeks before, while humidity and rainfall were affected one week before. The higher air temperature scales, flea population level will increase. And the higherrelative humidity, scales population levels will increase.
Co-Authors Abdul Latief Abadi Bagyo Yanuwiadi Gatot Mudjiono Gatot Mudjiono Khojin Supriadi Liliek Sulistyowati Moh. Hibban Toana Muhamad Luthfie Tri Meiadi Peter T. Green Toto Himawan