Comparative effectiveness of three types of pheromones against Rhynchophorus vulneratus (Panzer) and Oryctes rhinoceros (L.) in Indonesia

Hosang, Meldy L.A.; Rahma, Rahma; Maskromo, I; Alouw, Jelfina C.

doi:10.1088/1755-1315/974/1/012090

Cited by 3 publications

(2 citation statements)

References 7 publications

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“…In general, the sex ratio of the captured weevils was also close to a 1:1. In contrast to this result, Hosang et al [14] found a higher ratio of female R. vulneratus (2:1) attracted to the 4methyl-5-nonanol trap, which was installed in the coconut plantation on Sulawesi island. The difference is probably due to the higher beetle population found in the coconut plantation in Sulawesi, which provides abundant food sources.…”

Section: Figure 3 the Average Number Of Captured Weevils Per Pherotra...mentioning

confidence: 74%

The use of pre-mixture pheromone for controlling rhinoceros beetle and weevil stem borer in oil palm plantation

Priwiratama,

Prasetyo,

Rozziansha

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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A field experiment was conducted to assess the efficacy of pre-mixture pheromone formulation containing ethyl-4-methyl octanoate and 4-methyl-5-nonanol against rhinoceros beetle and weevil stem borer. Four doses of pre-mixture pheromone, i.e., 1 mL/2 ha, 1 mL/3 ha, 1 mL/4 ha, and 1 mL/8 ha, were tested following a randomized block design with five replications. A mock treatment using 1 mL of pure water was used as a comparison. The result showed that the pre-mixture pheromone could attract adult males and females of the rhinoceros beetle and the weevil stem borer. The recommended dose (1 ml/2 ha), as predicted, was more effective in trapping the targeted pests, of which the number of beetle and weevil trapped was 163.35 beetles/trap (equal to 8,168 beetles per 100 ha area) and 6.95 weevils/trap (equal to 348 weevils per 100 ha area), respectively. Each pest’s male and female adult was trapped at approximately a 1:1 ratio. The experiment suggests the potency of pre-mixture pheromone for controlling the population of rhinoceros beetle and weevil stem borer in oil palm plantations.

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Section: Figure 3 the Average Number Of Captured Weevils Per Pherotra...mentioning

confidence: 74%

The use of pre-mixture pheromone for controlling rhinoceros beetle and weevil stem borer in oil palm plantation

Priwiratama,

Prasetyo,

Rozziansha

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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“…A population of 5 insects on 1 hectare of coconut plantation harms production quantity by up to 50-100% [2]. Symptoms of damage caused by larvae are not easily detected and cause greater damage because the next larval instar will damage plant roots or grows on organic material [3]. O. rhinoceros beetle spreads to almost all provinces in Indonesia where oil palm plants grow and the volume of organic material in the field serves as a breeding ground and food for the larvae.…”

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confidence: 99%

Exposure of Beauveria bassiana from different sites to changes in behaviour and mortality of oil palm beetle larvae: Oryctes rhinoceros

Erawati,

Taufika,

Fisdiana

et al. 2024

IOP Conf. Ser.: Earth Environ. Sci.

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The potential of Beauveria bassiana as a biological control agent for Oryctes rhinoceros is still rarely reported. The objective of the research was to analyse the behaviour and mortality of O. rhinoceros larva due to exposure to several of B. bassiana. The research method used the Completely Randomized Design and analysis with 5% Tukey’s test. The results showed that B. bassiana form different sites had the potential to be developed as an effective biological control product in controlling O. rhinoceros as a part of novelty to explore the biodiversity of native biological control in Indonesia. Larvae of O. rhinoceros that were exposed to and infected with B. bassiana experienced changes in movement activity and decreased appetite as well as differences in cuticle colour, the initially limp body will turn stiff while the cuticle colour will change and the next symptom will be white mycelium growth which was proven by the SEM. The B. bassiana from Jember 1 had the highest mortality rate of 37.5% at 30 days after application even though it had the lowest spore density. These results indicate something new and require further study regarding the toxin content of each B. bassiana from different sites.

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Virulence of Metarhizium isolated from infected Oryctes rhinoceros L. (Coleoptera: Scarabaeidae) larvae around coconut plantations in East Java, Indonesia

Anur

Soeharto

Addy

et al. 2022

Egypt J Biol Pest Control

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Background Metarhizium is one of the entomopathogenic fungi (EPF) that has been widely reported as a useful agent for controlling the coconut rhinoceros beetle (CRB), Oryctes rhinoceros L. (Coleoptera: Scarabaeidae). Application of this fungus as a biopesticide is influenced by regional environmental conditions that affect the pathogenic activity against the targeted pest. Several studies have proven that the native fungal isolates have strong pathogenic activity than EPF introduced from other regions. The identification of local EPF species is a strategic approach to develop potential biopesticides with standard properties including host specificity, climate suitability, and significantly suppressing the target pest population. This study aimed to identify Metarhizium species isolated from infected CRB larvae with high pathogenicity to host pests in East Java, Indonesia. Results Thirteen isolates were obtained which were divided into 4 clades based on phylogenetic analysis by the ITS rDNA region, namely M. anisopliae var. lepidiotae, M. anisopliae var. anisopliae, M. brunneum, and M. majus. Identified Metarhizium species exhibited varied sizes of conidia, but fell within the size ranges reported in previous studies. Interestingly, the isolate MaSi produced conidial lengths well above the range of conidial sizes recorded and placed these isolates (M. anisopliae) in the MGT clade, known as MALC (M. anisopliae s.l. with large conidia). The present investigation reported that isolates MaLe, MaMa, MaWa, and MaSi produced higher mortality values than other isolates, supporting that M. majus and MALC had higher pathogenicity against O. rhinoceros larvae than other Metarhizium species. Neighbor-joining analysis showed a close resemblance between the isolate MaMa and the strain ARSEF 1946, which was isolated from the CRB. In addition, the isolate MaMa had the highest virulence against O. rhinoceros larval cadaver with a faster lethal time (for 50% mortality). This result indicated a possible relationship between phylogenetic status or DNA sequence polymorphisms with Metarhizium pathogenicity and host specificity. Conclusions The local species of Metarhizium have been isolated from infected CRB larvae, and M. majus isolates exhibited high pathogenicity against O. rhinoceros larvae. The close similarity of M. majus isolates and CRB-isolated strains suggests a possible relationship between pathogenicity and host specificity with phylogenetic status or DNA sequence polymorphisms.

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Comparative effectiveness of three types of pheromones against Rhynchophorus vulneratus (Panzer) and Oryctes rhinoceros (L.) in Indonesia

Cited by 3 publications

References 7 publications

The use of pre-mixture pheromone for controlling rhinoceros beetle and weevil stem borer in oil palm plantation

The use of pre-mixture pheromone for controlling rhinoceros beetle and weevil stem borer in oil palm plantation

Exposure of Beauveria bassiana from different sites to changes in behaviour and mortality of oil palm beetle larvae: Oryctes rhinoceros

Virulence of Metarhizium isolated from infected Oryctes rhinoceros L. (Coleoptera: Scarabaeidae) larvae around coconut plantations in East Java, Indonesia

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