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Potensi Individu Amblyseius deleoni et Denmark sebagai Predator Hama Tungau Panonychus citri McGregor pada Tanaman Jeruk Setyobudi, L; Istianto, Mizu; Endarto, Oto
Jurnal Hortikultura Vol 17, No 1 (2007): Maret 2007
Publisher : Indonesian Center for Horticultural Research and Development

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

ABSTRAK. Panonychus citri merupakan salah satu hama penting pada tanaman jeruk. Pengendalian terhadap populasi hama tungau ini perlu dilakukan untuk menekan kehilangan hasil pada tanaman jeruk. Salah satu alternatif pengendalian yang perlu dikembangkan adalah pemanfaatan musuh alami. Penelitian ini bertujuan mengetahui potensi individu A. deleoni pemangsa hama P. citri. Penelitian dilaksanakan pada bulan Agustus 1999-Januari 2000 di Laboratorium Entomologi Balai Penelitian Tanaman Jeruk dan Buah Subtropika, Tlekung. Penelitian menggunakan rancangan acak lengkap dengan 6 perlakuan dan 10 ulangan. Perlakuannya adalah A. deleoni diberi mangsa (1) telur, (2) larva, (3) nimfa, (4) imago, dan (5) campuran stadia P. citri, serta (6) tepungsari bunga pepaya. Hasil penelitian menunjukkan bahwa A. deleoni mampu memangsa P. citri. Individu A. deleoni mampu memangsa telur, larva, nimfa, imago, dan campuran stadia P. citri berturut-turut sebanyak 1,80-2,16 butir/hari, 1,08-2,22 ekor/hari, 0,70-1,52 ekor/hari, 0,47-1,08 ekor/hari, dan 1,15-2,93 ekor/hari. Lama stadia pertumbuhan A. deleoni pada stadia mangsa yang berbeda tidak menunjukkan perbedaan nyata terhadap tingkat pemangsaan. Jumlah telur yang diletakkan oleh A. deleoni dewasa terbanyak adalah pada perlakuan mangsa telur, yaitu 14,40 butir. Jumlah keturunan F1 terbanyak dari A. deleoni terjadi pada perlakuan mangsa telur, yaitu 11,52 ekor. Hasil ini menunjukkan adanya alternatif predator yang dapat digunakan untuk mengendalikan populasi P. citri pada tanaman jeruk.ABSTRACT. Setyobudi, L., M. Istianto, and O. Endarto. 2007. Individual Potency of Amblyseius deleoni et Denmark as Predator of Panonychus citri McGregor on Citrus. Panonychus citri is one of the most economically important citrus pests in Indonesia. Controlling to this pest population is needed to suppress the crop losses of citrus production. One of the technologies to control mite population is by applying natural enemies. The objective of this research was to evaluate the individual potency of A. deleoni to prey P. citri. The research was arranged in a completely randomized design with 6 treatments and 10 replications This research was conducted from August 1999 to January 2000 in Laboratory of Entomology of Indonesian Citrus and Subtropic Fruit Research Institute Tlekung. The treatments were A. deleoni put in the several stages of P. citri lifecycle i.e. (1) eggs, (2) larva, (3) nymph, (4) adult, (5) mixed stages of P. citri, and (6) pollens of papaya. The results showed that A. deleoni had a potency to prey P. citri. During the treatments, individual of A. deleoni was able to prey 1.80-2.16 eggs/day, 1.08-2.22 larvae/day, 0.70-1.52 nymphs/day, 0.47-1.08 adults/day, 1.15-2.93 mixed stages of P. citri/day. The treatments tended not to have significant influence to longevity of A. deleoni. The largest number of eggs and first generation of A. deleoni found in the treatment of eggs of P. citri as a prey i.e. 14.40 and 11.52 respectively. This results gives an alternative predator that can be used to control the population of P. citri on citrus.
Potensi Individu Amblyseius deleoni et Denmark sebagai Predator Hama Tungau Panonychus citri McGregor pada Tanaman Jeruk L Setyobudi; Mizu Istianto; Oto Endarto
Jurnal Hortikultura Vol 17, No 1 (2007): Maret 2007
Publisher : Indonesian Center for Horticulture Research and Development

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jhort.v17n1.2007.p%p

Abstract

ABSTRAK. Panonychus citri merupakan salah satu hama penting pada tanaman jeruk. Pengendalian terhadap populasi hama tungau ini perlu dilakukan untuk menekan kehilangan hasil pada tanaman jeruk. Salah satu alternatif pengendalian yang perlu dikembangkan adalah pemanfaatan musuh alami. Penelitian ini bertujuan mengetahui potensi individu A. deleoni pemangsa hama P. citri. Penelitian dilaksanakan pada bulan Agustus 1999-Januari 2000 di Laboratorium Entomologi Balai Penelitian Tanaman Jeruk dan Buah Subtropika, Tlekung. Penelitian menggunakan rancangan acak lengkap dengan 6 perlakuan dan 10 ulangan. Perlakuannya adalah A. deleoni diberi mangsa (1) telur, (2) larva, (3) nimfa, (4) imago, dan (5) campuran stadia P. citri, serta (6) tepungsari bunga pepaya. Hasil penelitian menunjukkan bahwa A. deleoni mampu memangsa P. citri. Individu A. deleoni mampu memangsa telur, larva, nimfa, imago, dan campuran stadia P. citri berturut-turut sebanyak 1,80-2,16 butir/hari, 1,08-2,22 ekor/hari, 0,70-1,52 ekor/hari, 0,47-1,08 ekor/hari, dan 1,15-2,93 ekor/hari. Lama stadia pertumbuhan A. deleoni pada stadia mangsa yang berbeda tidak menunjukkan perbedaan nyata terhadap tingkat pemangsaan. Jumlah telur yang diletakkan oleh A. deleoni dewasa terbanyak adalah pada perlakuan mangsa telur, yaitu 14,40 butir. Jumlah keturunan F1 terbanyak dari A. deleoni terjadi pada perlakuan mangsa telur, yaitu 11,52 ekor. Hasil ini menunjukkan adanya alternatif predator yang dapat digunakan untuk mengendalikan populasi P. citri pada tanaman jeruk.ABSTRACT. Setyobudi, L., M. Istianto, and O. Endarto. 2007. Individual Potency of Amblyseius deleoni et Denmark as Predator of Panonychus citri McGregor on Citrus. Panonychus citri is one of the most economically important citrus pests in Indonesia. Controlling to this pest population is needed to suppress the crop losses of citrus production. One of the technologies to control mite population is by applying natural enemies. The objective of this research was to evaluate the individual potency of A. deleoni to prey P. citri. The research was arranged in a completely randomized design with 6 treatments and 10 replications This research was conducted from August 1999 to January 2000 in Laboratory of Entomology of Indonesian Citrus and Subtropic Fruit Research Institute Tlekung. The treatments were A. deleoni put in the several stages of P. citri lifecycle i.e. (1) eggs, (2) larva, (3) nymph, (4) adult, (5) mixed stages of P. citri, and (6) pollens of papaya. The results showed that A. deleoni had a potency to prey P. citri. During the treatments, individual of A. deleoni was able to prey 1.80-2.16 eggs/day, 1.08-2.22 larvae/day, 0.70-1.52 nymphs/day, 0.47-1.08 adults/day, 1.15-2.93 mixed stages of P. citri/day. The treatments tended not to have significant influence to longevity of A. deleoni. The largest number of eggs and first generation of A. deleoni found in the treatment of eggs of P. citri as a prey i.e. 14.40 and 11.52 respectively. This results gives an alternative predator that can be used to control the population of P. citri on citrus.
Effect of inoculation and time of application of microbes on growth and yield of soybean (Glycine max (L.) Merrill) Muslikah, S; Sudiarso, S; Setyobudi, L
Journal of Degraded and Mining Lands Management Vol. 4 No. 1 (2016)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2016.041.709

Abstract

The application of inorganic fertilizers continuously can result in hardening of soil, narrowing of soil pores, thus the roots will have difficulty in penetrating soil. Biological properties of soil that decreases could lead to disruption of microorganism activity, so that the decomposition of organic matter of soil become obstructedand soil fertility decline. Therefore, it is advisable to use an alternative to application of microbes, i.e. Rhizobium and effective microorganisms 4 (EM4) that will enhance the availability of nutrients for plants. This study was aimed to determine the effect of inoculation and time of application of the microbes on the growth and yield of soybean. The experiment was conducted in the greenhouse located 500 m above sea level. The design used for the experiment was a completely randomized design with three replications. Observations of non-destructive and destructive data were analyzed by analysis of variance (F test) at 5% level and continued with LSD at 5% level. The results showed significant effect treatments applied on the growth and yield components. Treatment i6 (EM4 applied at 1 week after planting) was the best treatment, as shown by the increased number of pods by 95.94%,  dry weight of pods by 38.25%, total dry matter, seed by 24.61%, and 68.40% weight of 100 seeds.