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All Journal Agrikultura Cropsaver : Journal of Plant Protection AGROLOGIA : Jurnal Ilmu Budidaya Tanaman
Nenet Susniahti
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Environmental Science

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The effectiveness of soursop seed (Annona muricata L.) agains Callosobruchus maculatus F. (Coleoptera: Bruchidae) Rama Ginanjar Gilang; Nenet Susniahti; Danar Dono
CROPSAVER Vol 1, No 1 (2018)
Publisher : Departemen Hama dan Penyakit Tumbuhan Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (349.846 KB) | DOI: 10.24198/cs.v1i1.16994

Abstract

Callosobruchus maculatus F. (Coleoptera: Bruchidae) one of the main pests that cause damage to mung beans in storage areas. This research was conducted to determine the effective dose from soursop seed (Annona muricata) powder resulting mortality and emphasizing the amount of imago on the first-generation C. Maculatus. This research was conducted at Plant Pest Laboratory, Department of Plant Pests and diseases, Faculty of Agriculture, Universitas Padjadjaran, Jatinangor using experimental method of Complete Random Design (CRD) with 6 treatments and 5 replications. The treatments were tested using 5 doses of A. muricata seed powder with 1 grams, 3 grams, 5 grams, 7 grams, and 9 grams doses, and added with control or without treatment. The results showed that the dose of 5 grams A. muricata seed powder showed the mortality of C. maculatus  by 94% at 8 days after infestation, emphasizing the amount of eggs which is placed  C. maculatus of mungbean seed 77,64%. Emphasis on the emergence of the first generation of imago in the mung bean seeds is 74.67%. The lowest of loss weight mung beed seed amount 1,33%.Keywords: Annona muricata, Callosobruchus maculatus, Soursop Seed Powder, Mortality
Inventarisasi Penyakit pada Tanaman Jarak Pagar (Jatropha curcas L.) Pada Tiga Daerah di Jawa Barat Krisna Dwi Laksono; Ceppy Nasahi; Nenet Susniahti
Agrikultura Vol 21, No 1 (2010): April, 2010
Publisher : Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2341.589 KB) | DOI: 10.24198/agrikultura.v21i1.975

Abstract

Tanaman jarak pagar (Jatropha curcas L.) adalah salah satu tanaman alternatif penghasil minyak nabati yang berpotensi untuk dikembangkan di Indonesia. Oleh karena itu, faktor-faktor yang mempengaruhi pengembangan jarak pagar perlu diperhatikan termasuk penyakit tanaman. Penelitian ini bertujuan untuk menginventarisasi penyakit tanaman yang terdapat di beberapa perkebunan jarak pagar di daerah Jawa Barat yaitu, PT. Genting Oils di Cirata Kabupaten Bandung, PT. Rajawali Nusantara Indonesia (RNI) di Jatitujuh Kabupaten Majalengka, dan PT. RNI di  Purwadadi Kabupaten Subang. Metode yang digunakan dalam penelitian ini adalah metode survei dengan pengamatan keberadaan penyakit secara langsung pada tanaman sampel. Hasil pengamatan menunjukan bahwa penyakit embun tepung yang disebabkan oleh Oidium sp. dengan intensitas penyakit mencapai 38 %  ditemukan di  kebun Cirata B. Penyakit antraknosa yang disebabkan oleh colletotrichum sp. dengan intesitas penyakit mencapai 37 % ditemukan di kebun Cirata A. Penyakit embun jelaga yang disebabkan oleh Capnodium sp. terdapat di kebun Purwadadi dan Jatitujuh dengan intensitas penyakit mencapai masing-masing 36 % dan 22,5 %.  Selain itu, ditemukan juga penyakit layu bakteri yang disebabkan oleh Pseudomonas sp., penyakit hawar daun kelabu yang disebabkan oleh Pestalotiopsis sp., serta ditemukan juga keberadaan nematode Rotylenchulus sp. di seluruh area penelitian.
Populasi Hama Wereng Batang Coklat (Nilaparvata lugens Stal.), Keragaman Musuh Alami Predator Serta Parasitoidnya Pada Lahan Sawah Di Dataran Rendah Kabupaten Indramayu Martua Suhunan Sianipar; Andang Purnama; Entun Santosa; R.C. Hidayat Soesilohadi; Wahyu Daradjat Natawigena; Nenet Susniahti; Akbar Primasongko
Agrologia Vol 6, No 1 (2017)
Publisher : Faculty of Agriculture, Pattimura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/a.v6i1.245

Abstract

Population of brown plant hopper (Nilaparvata lugens Stal) is one of the major rice pest that is threatening rice production in Indramayu. Integrated pest management is needed to control the population of brown plant hopper (BPH). To construct effective strategy of Integrated Pest Management, a survey to obtain information about the population of BPH and the diversity of its natural enemies predator and parasitoid is required. The result of the survey showed that fluctuation of BPH population was evidence. BPH occurs from the 1st week of observation and the population was rising until the 5th week of observation and hence the population declined until the 12th week of observation. This population decline was caused by BPH’s live cycle followed the growth phase of rice plant. Correlation between climate factors and fluctuation of BPH population was not significant. Based on Shanon-Wiener diversity index analysis, the diversity of natural predators of BPH was medium with the value of H’ of 1,83 due to  uniform field condition
Co-Authors Akbar Primasongko Andang Purnama Ceppy Nasahi Danar Dono Entun Santosa Krisna Dwi Laksono Martua Suhunan Sianipar R.C. Hidayat Soesilohadi Rama Ginanjar Gilang Wahyu Daradjat Natawigena