PENGENDALIAN HAMA Spodoptera exigua Hubner. PADA TANAMAN BAWANG MERAH VARIETAS LEMBAH PALU DENGAN PENGGUNAAN PUPUK DAN MULSA

Valentino, Valentino; Thaha, Abd. Rahim

doi:10.22487/j.24077607.2019.v26.i2.13057

Cited by 3 publications

(2 citation statements)

References 18 publications

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“…Spodoptera exigua (Hübner) (Lepidoptera: Noctuidae) or beet armyworm known as the destructive pest on the shallot plantation especially in South Sulawesi. As the important insect pest for shallot plantation and nurseries, the yield loss of S. exigua reached 100% without controlled [5,6,7]. S. exigua adult has ability spread very fast in the shallot plantation at lowland and highland.…”

Section: Introductionmentioning

confidence: 99%

Management Technique Against Spodoptera Exigua (Hübner) in the Different Elevation of Shallot

Nur Aminah,

Abdullah,

Fajriani

2024

BIO Web Conf.

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Spodoptera exigua (Hübner) (beet armyworm) as the destructive insect pest in shallot. The purpose of the research is to determine difference of S. exigua management techniques based elevation in two different plantation. The research was conducted by collected primary data from shallot farmers in Anggeraja District (Mataran 650 m asl and Pekalobean 840 m asl) and Baraka District (Perarian 1.014 m asl and Parinding 638 m asl). The two places used in research is the center of shallot plantation in Enrekang Regency, South Sulawesi. The data was obtained by survey used 15 shallot farmers in each village. The results showed the control techniques different according to the elevation. S. exigua controlled by nylon nets only in areas < 700 m asl (Mataran 53% and Parinding 27%). In areas with elevation > 700 m asl (result of light trap in Mataran by 87% and Parinding by 80%). In the elevation > 700 m asl (result of light trap in Pekalobean about 100% and Perangian 0%). The mechanical control techniques by squeezing insect pest eggs at elevation of > 700 m asl (Pekalobean 93% and Perangian 6%), elevation of < 700 m asl (Mataran and Parinding both showed 60%). Conclusion of research, the control techniques different based on the elevation of shallot plantation.

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Section: Introductionmentioning

confidence: 99%

Management Technique Against Spodoptera Exigua (Hübner) in the Different Elevation of Shallot

Nur Aminah,

Abdullah,

Fajriani

2024

BIO Web Conf.

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“…Late management might cause management costs to be wasteful. Thus, S. exigua management should be done at the right time, and an early warning system together with monitoring is required (Ishtiaq et al, 2012;Valentino & Thaha, 2019).…”

Section: Introductionmentioning

confidence: 99%

Population dynamic and pheromone use for early monitoring of Spodoptera exigua Hübner (Lepidoptera: Noctuidae) in Indonesia

Witjaksono,

Y. Andi Trisyono,

Heru Rezki Tanjung

et al. 2024

J Trop Plant Pests Dis

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Beet armyworm (Spodoptera exigua) poses a challenge for shallot production because it can exist in fields throughout the year. This study aims to observe the dynamic population during shallot off and on-seasons. Additionally, this study aims to determine the correlation between S. exigua moth captures and damage intensity. The research was conducted from November to May in Kretek Village, Parangtritis District, Bantul Regency, Special Region of Yogyakarta Province, Indonesia. Population dynamic observations of S. exigua during the off-season and on-season were conducted in a 100 x 100 m plot with ten pheromone traps installed. The early monitoring study consisted of two treatments: installed pheromone and control (without the installation of pheromones). The plots were separated by approximately 500 m and were approximately 3500 m2 in size. The results showed that S. exigua exists and can survive during shallot off-season and on-season planting periods. The number of male S. exigua moths captured during the on-season was higher compared to the off-season. The fluctuation of rainfall and the number of S. exigua during the off and on-seasons were also observed, showing that rainfall significantly affected the number of S. exigua moths captured. However, the relationship between rainfall and S. exigua population needs further study. Strong positive correlations between population and damage intensity in pheromone-treated fields between three to seven days after observation (DAO) demonstrated that pheromone traps can be used as a monitoring tool for S. exigua. The close correlation between the S. exigua captured and the intensity of the damage that will occur can be prevented by controlling them by farmers.

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Virulence of Five Isolates of Indigenous Beauveria Bassiana Against Eggs and Nymphs of Bemisia Tabaci Gennadius (Hemiptera: Aleyrodidae)

2021

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This research aims to study the virulence of five isolates of Beauveria bassiana to eggs and nymphs of Bemisia tabaci on tomato. In the experiment eggs and second instar nymphs of B. Tabaci were used. Five isolates of the fungus, i.e., WS, TD312, PD114, PA221, PB211, were tested. Conidial concentration of B. bassiana used were 108 conidia/ml. Experimental parameters included mortality of eggs and nymph and percentage of adult emergence. The results showed that all B. bassiana isolates tested were able to kill B. tabaci eggs but with very low mortality (2-19%). Mortality of second instar B. tabaci nymphs was dependent on the fungal isolates. Isolate WS had the highest virulence, which caused 70% mortality of 2nd instar nymphs, with a LT50 of 4.87 days. Nymphs of B. tabaci were highly susceptible to B. bassiana infection compared with eggs. B. bassiana applicated to nymphs of B. tabaci can decrease the percentage of adult emergence.

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PENGENDALIAN HAMA Spodoptera exigua Hubner. PADA TANAMAN BAWANG MERAH VARIETAS LEMBAH PALU DENGAN PENGGUNAAN PUPUK DAN MULSA

Cited by 3 publications

References 18 publications

Management Technique Against Spodoptera Exigua (Hübner) in the Different Elevation of Shallot

Management Technique Against Spodoptera Exigua (Hübner) in the Different Elevation of Shallot

Population dynamic and pheromone use for early monitoring of Spodoptera exigua Hübner (Lepidoptera: Noctuidae) in Indonesia

Virulence of Five Isolates of Indigenous Beauveria Bassiana Against Eggs and Nymphs of Bemisia Tabaci Gennadius (Hemiptera: Aleyrodidae)

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