PATOGENISITAS BAKTERI, JAMUR DAN NEMATODA ENTOMOPATOGEN TERHADAP HAMA PENGGEREK BUAH  KAPAS (Gossypium hirsutum L.)

Wardati, Irma; Erawati, Dyah Nuning; Triwidiarto, Cherry; Fesdiana, Usken

doi:10.25047/jii.v13i1.57

Cited by 3 publications

(3 citation statements)

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“…This differs from using chemical insecticides because of larval mortality and being driven by nature as a stomach poison, allegedly because plants absorb the insecticide. The development of microorganisms as entomopathogens should be followed by farmers' attitudes and behaviors in reducing chemical insecticides [13,38,39]. In addition, botanical insecticides are more effective [32] than single applications when combined with microbial insecticides [28,31].…”

Section: Figure 5 Intensity Of Attack S Lituramentioning

confidence: 99%

Effectiveness of Bacillus thuringiensis (Bt) application in controlling mortality of Spodoptera litura on rice plants (Oryza sativa L.)

Sembiring,

Mendes,

Kusumah

et al. 2024

Anjoro

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Rice (Oryza sativa L.) is the primary commodity for the Indonesian people because most of the Indonesian population depends on rice. The armyworm pests Spodoptera litura causes irregular holes in the leaves, thus disrupting the photosynthesis process and reducing rice production, so it is necessary to treat the pest. Bacillus thuringiensis is a pathogenic bacterium for insects, such as S. litura. This study aimed to look at the effectiveness of B. thuringiensis on the mortality of S. litura on a laboratory and field scale. The research was conducted in the Agrotechnology Laboratory, Faculty of Agriculture, Musamus University. The research design was a complete randomized design (RAL). The research study was conducted on five treatment doses of B. thuringiensis, which were 20 g/500 ml of water; 40g/500 ml of water; 60 g/500 ml of water; 80 g/500 ml of water; 100 g/500 ml of water. Each treatment was repeated five times. The results showed that, applying B. thuringiensis can significantly decrease the population and intensity of S. litura. The highest mortality rate in laboratory trials was observed at a dose of 100 grams/500 ml of water, with 50 dead individuals. In contrast, the lowest mortality rate was recorded at a dose of 20 gram of material/500ml of water, with only 12 death S. litura larvae. In field testing, the best dose was 50 gram/14 liters of water, and it caused the death of 50 S. litura larvae. Spraying B. thuringiensis on rice plants can reduce the population and intensity of S. litura.

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Section: Figure 5 Intensity Of Attack S Lituramentioning

confidence: 99%

Effectiveness of Bacillus thuringiensis (Bt) application in controlling mortality of Spodoptera litura on rice plants (Oryza sativa L.)

Sembiring,

Mendes,

Kusumah

et al. 2024

Anjoro

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“…Pengendalian hayati dengan NEP sudah banyak dilakukan terhadap beberapa jenis serangga hama seperti larva ulat kubis (Cahyono et al, 2020); hama penggerek kapas (Wardati et al, 2016;(Uge et al, 2021). ); dan Plutella xylostella; (Indrayani & Gothama, 2020);tanaman perkebunan dan hortikultura (Wulandari & Budirahaju, 2021).…”

Section: Pendahuluanunclassified

Eksplorasi Nematoda Entomopatogen pada daerah Rhizosfer Tanaman Hortikultura di Desa Rumahtiga dan Wayame Kota Ambon

Sembiring,

Umasangaji,

Uluputty

2023

J. Pert. Kepulauan

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Biological control of several types of pests and diseases of horticultural vegetables and plantations qualitatively and quantitatively. The results of the study found the genus Steinernema spp in every type of plant in both sample villages. The highest NEP population density was found in Negeri Rumahtiga in eggplant plants with an average population of infective juvenile phase NEP (661.8 heads) and the lowest average population is found in chili plants (228.8 heads). The highest average population in Wayame village was found in tomato plants (425.8 ji NEP), while the lowest average was in chili plants (245.0 ji). In addition, the results of various analyses of population density showed a real influence on entomopathogenic nematodes in Rumahtiga Country, while in Wayame village there was no real effect

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“…Selain itu, terdapat dua isolat yakni IBE 04 dan IBE memiliki kemampuan membunuh larva masing-masing mencapai 94% dan 84%. Menurut Wardati et al (2013), toksisitas agen hayati disebabkan pengaruh proses fisiologi dan biokimia yang terdiri dari kemampuan penetrasi agen hayati melalui integumen atau dinding saluran pencernaan. Selanjutnya, berpindah ke bagian organ tubuh sasaran, terjadi pengikatan dan penyimpanan pada jaringan tubuh tertentu.…”

Section: Seleksi Potensi Cendawan Entomopatogenunclassified

Eksplorasi Potensi Bakteri Entomopatogen di Areal Tanaman Perkebunan Provinsi Kalimantan Utara

Rahim¹,

Roslina²,

Nurmaisah³

et al. 2022

Bioscientist j. ilm. bosbiol.

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Plantation areas have the potential as a source of biological agents for entomopathogenic bacteria. This study aims to determine the potential of entomopathogenic bacteria from various locations in plantation crop cultivation areas, and compare their potential in North Kalimantan Province. This study carried out soil sampling, bacterial isolation, and selection of entomopathogenic bacteria using insect baits. This type of research uses a survey method on the potential of entomopathogenic bacteria. The survey was conducted at three plantation crop cultivation locations, namely coffee cultivation areas in Malinau, cocoa in Sebatik, and oil palm in Sebuku. The potency is distinguished based on the number and macroscopic characteristics of the bacterial isolate colonies obtained from each location. Furthermore, selection was carried out through testing, namely comparing bacterial isolates with a dilution of 10-1, stock, and control. Analysis of survey results using descriptive analysis and potential testing using t-test. The results showed that there were 13 bacterial isolates, and the coffee cultivation area in Malinau had the highest bacterial isolates. The selection results found 7 (seven) bacterial isolates that had the potential to be entomopathogenic bacteria, and coffee cultivation locations in Malinau had a higher number of isolates that had the potential to be entomopathogenic compared to other locations. However, isolate ST6-4U2 at dilution 10-1 from soil in the oil palm plantation area in Sebuku has the highest virulence potential as an entomopathogenic bacteria.

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PATOGENISITAS BAKTERI, JAMUR DAN NEMATODA ENTOMOPATOGEN TERHADAP HAMA PENGGEREK BUAH KAPAS (Gossypium hirsutum L.)

Cited by 3 publications

References 0 publications

Effectiveness of Bacillus thuringiensis (Bt) application in controlling mortality of Spodoptera litura on rice plants (Oryza sativa L.)

Effectiveness of Bacillus thuringiensis (Bt) application in controlling mortality of Spodoptera litura on rice plants (Oryza sativa L.)

Eksplorasi Nematoda Entomopatogen pada daerah Rhizosfer Tanaman Hortikultura di Desa Rumahtiga dan Wayame Kota Ambon

Eksplorasi Potensi Bakteri Entomopatogen di Areal Tanaman Perkebunan Provinsi Kalimantan Utara

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