Nadzirum Mubin
Departemen Proteksi Tanaman, Fakultas Pertanian, IPB University, Indonesia

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Kumbang pemakan daun palem Pelagodoxa henryana Becc. di Kebun Raya Bogor, Indonesia Nadzirum Mubin; Fitri Fatma Wardani; Rizmoon Nurul Zulkarnaen; Inggit Puji Astuti; Joko Ridho Witono
Jurnal Entomologi Indonesia Vol 19 No 2 (2022): July
Publisher : Perhimpunan Entomologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5994/jei.19.2.135

Abstract

Bogor Botanical Garden (BBG) is a conservation site with various type of collections such as threatened palm species, including Pelagodoxa henryana Becc. which has been categorized as critically endangered species. During its development, some of the plants did not grow optimal due to insect pests attack. The purpose of the study was to identify insect pest species that attack the P. henryana in BBG. The method used was observation with purposive sampling on eight palms P. henryana in BBG then insects were collected and identified. The results showed that insect pest attacked young leaf and also unopened leaf. The insects hide between the leaves, causing young leaves became dry up then died. Based on species identification, two leaf beetles were found i.e., Brontispa longissima (Gestro) and Wallacea sp. (Coleoptera: Chrysomellidae).
Biologi ngengat Galleria mellonella (Linn.) (Lepidoptera: Pyralidae) pada beberapa jenis pakan buatan Nadzirum Mubin; Mohammad Riza Krisnadi; Teguh Santoso; Fitrianingrum Kurniawati
Jurnal Entomologi Indonesia Vol 19 No 3 (2022): November
Publisher : Perhimpunan Entomologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5994/jei.19.3.243

Abstract

The greater wax moth (Galleria mellonella (Linnaeus)) is one of Asia’s most essential pests in honey beekeeping. Apart from being a pest, G. mellonella was also used as a test insect in several business fields. The needs of the population of G. mellonella encourage several areas of the business to cultivate it practically and economically. This study aimed to determine and examine the composition of food ingredients as an artificial diet that can affect the growth and development of G. mellonella. The test consisted of four different feed-modified formulas, namely P1 (corn flour, wheat, glycerol, and yeast), P2 (rice flour, wheat flour, wheat bran, glycerol, and yeast), P3 (wheat flour, wheat, glycerol, and yeast), and P4 (brown rice, glycerol, and yeast). The observation criteria were life cycle, mortality rate, fecundity, and egg fertility of the G. mellonella moth. Based on the study’s results, the life cycle development of G. mellonella was the shortest in the P3 treatment (71.5 ± 5.2 days) and the longest P4 treatment (84.2 ± 8.3 days). The highest mortality rate was in the P3 feed type at 13.12%, while the lowest occurred in the P4 treatment at 4.44%. Based on the fecundity of female imago, treatment P4 had the highest fecundity level of 527.7 eggs/female, while treatment P1 was the lowest (169.6 eggs/female). P4 treatment responded best to several biological aspects of the G. mellonella moth, such as larger body size, lower mortality, and high fecundity rates.
Tingkat resistensi insektisida emamektin benzoat terhadap ulat krop Crocidolomia pavonana (F.) (Lepidoptera: Crambidae) di Kabupaten Cianjur, Jawa Barat: Resistance level of emamectin benzoate insecticide to Crocidolomia pavonana (F.) (Lepidoptera: Crambidae) in Cianjur Regency, West Java Kristoforus Sinyong; Nadzirum Mubin; Djoko Prijono
Jurnal Entomologi Indonesia Vol 20 No 3 (2023): November
Publisher : Perhimpunan Entomologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5994/jei.20.3.247

Abstract

The cabbage crop caterpillar, Crocidolomia pavonana, that can be very damaging to Brassicaceae plants in Indonesia, particularly in the Cianjur Regency. Farmers in the area have been using synthetic insecticides like emamectin benzoate to control this pest, but it seems that continuous use of these insecticides can lead to resistance in the pest. This research aimed to determine the level of resistance and distribution of emamectin benzoate in C. pavonana in Cianjur Regency. Field populations of C. pavonana were collected from five villages in three districts in Cianjur Regency. As a comparison, a laboratory population was used to determine the resistance ratio. All populations were tested for toxicity to determine the LC50. The results showed that populations of C. pavonana from Cianjur Regency were still susceptible to emamectin benzoate. Treatment at 22.08 í— 10-4 mg a.i/l concentration in 72 hours after treatment showed that the population's mortality was >90%. The resistance ratios of C. pavonana in Cianjur Regency were quite concerning (resistance indocation), with a range of 1.33–2.01 indicating resistance to emamectin benzoate was moderate. Interestingly, the Sindang Jaya population showed the highest resistance ratio. It's worth noting that over 90% of farmers in the region use this insecticide in the field, which supports the idea of resistance to the chemical. This study provided valuable insight into the distribution of insecticide used and resistance levels of C. pavonana in the area support each other.