Fecundity, Fertility and Survival of Red Palm Weevil (Rhynchophorus ferrugineus) Larvae Reared on Sago Palm

Yong, Kah Wai; Bakar, Aisyah Abu; Azmi, Wahizatul Afzan

doi:10.17576/jsm-2015-4410-01

Cited by 12 publications

(5 citation statements)

References 10 publications

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“…According to Quesada-Moraga et al [90], when adult males of the Mediterranean fruit fly, Ceratitis capitata (Wiedemann) (Diptera: Tephritidae) were infected by inoculated adult females with dry conidia of the M. anisopliae isolate EAMa 01/58-Su, 100% mortality was obtained. Wai et al [91] concluded that mated female R. ferrugineus consume much of their energy during their reproductive cycle. Consequently, they remain with less potential to survive in comparison to virgin females.…”

Section: Discussionmentioning

confidence: 99%

Efficacy and Persistence of Entomopathogenic Fungi against Rhynchophorus ferrugineus on Date Palm: Host to Host Transmission

Alwaneen,

Wakil,

Kavallieratos

et al. 2024

Agronomy

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The red palm weevil (RPW), Rhynchophorus ferrugineus (Olivier) (Coleoptera: Dryophthoridae), is a destructive and voracious pest of palm species worldwide. Due to environmental and regulatory concerns, ecologically safe alternatives to synthetic chemical insecticides are needed to manage this cryptic insect species. Entomopathogenic fungi have the potential to manage this pest. The scope of management and effectiveness can be improved by direct control or horizontal transmission of entomopathogenic fungal isolates. We tested in the laboratory the virulence and pathogenicity of fifteen different entomopathogenic fungal isolates belonging to the following species: Beauveria bassiana, Metarhizium anisopliae, Beauveria brongniartii and Purpureocillium lilacinum. All fungal isolates were found virulent against larvae (14.9 ± 1.06 to 81.5 ± 1.48% mortality) and adults (5.6 ± 1.12 to 51.7 ± 1.51% mortality) at 12 d post-treatment. From a screening bioassay, five M. anisopliae (WG-08, WG-09) and B. bassiana (WG-23, WG-24, WG-25) isolates were tested for their concentration response mortality against larvae and adults after 7, 14 and 21 days (d) of treatment. Mortality was found positively correlated with concentration and time. At 21 d of treatment, WG-23 and WG-25 1 × 108 conidia/mL resulted in 100% mortality against larvae while only WG-25 1 × 109 conidia/mL caused 100% mortality of adults. Along with mortality, all the potential isolates have strong ovicidal effects that reduced 81.49% at 1 × 108 conidia/mL. The horizontal transmission bioassay indicated that the infected adults transmitted the disease to healthy individuals. Horizontal transmission of fungi from infected to non-infected adults not only caused significant mortality but also had a serious sublethal impact on insect development and fitness including reduced number of eggs/d fecundity, egg viability and neonate survival. Isolate WG-25 reduced oviposition (0.5 eggs/d), fecundity (11.7 eggs/female), egg viability (11.6%) along with larval survival 25.9% when infected male mated with normal female. In semi-field trials, all fungal isolates reduced survival of larvae found inside the palms and ultimately reduced infestations over a period of two months. The results of this study indicate that entomopathogenic fungi should be further tested for sustainable and efficient control of RPW in date palm production systems.

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Section: Discussionmentioning

confidence: 99%

Efficacy and Persistence of Entomopathogenic Fungi against Rhynchophorus ferrugineus on Date Palm: Host to Host Transmission

Alwaneen,

Wakil,

Kavallieratos

et al. 2024

Agronomy

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“…In some cases, RPW might reach up to the ninth instar depending on the food sources of their host plant ( Jaya et al 2000 , Ju et al 2011 ). In Malaysia, a study by Yong (2015) showed that the eggs took 4–5 d to hatch, larvae duration took about 120 d, pupal duration took 21–25 d, and the complete life cycle of the RPW took approximately 4 to 5 mo.…”

Section: Discussionmentioning

confidence: 99%

Food Consumption, Developmental Time, and Protein Profile of the Digestive System of the Red Palm Weevil, Rhynchophorus ferrugineus (Coleptera: Dryophthoridae) Larvae Reared on Three Different Diets

Zulkifli

Zakeri

Azmi

2018

Journal of Insect Science

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The red palm weevil (RPW), Rhynchophorus ferrugineus Olivier (Coleoptera: Dryophthoridae) is one of the most dangerous pests of major cultivated palms including coconut, oil palm, and sago. The larval stage of the weevil causes the most destruction of the palms as it completely destroys the palm cabbage. In this study, the larvae were given three different diets—coconut cabbage, oil palm cabbage, and sago stem, under laboratory conditions for food consumption and developmental time experiment. The protein profiles of the digestive systems of the larvae fed on these three diets were also determined. Although the coconut diet was the most consumed by RPW larvae compared to oil palm and sago diets, the growth rate of RPW larvae on oil palm diet was however significantly shorter than those on the coconut and sago diets: the RPW only need 1 mo and 9 d to complete the larval duration. Proteins profiling of eight 2-DE gel protein spots that range 50–20 kDa were identified by mass spectrometry sequence analysis. Based on the Matrix Science Software, the most dominant protein was cationic trypsin. However, based on the NCBI BLAST tool, aminopeptidase N was the most dominant enzyme. This finding can lead to the development of pest control strategies based on the antinutritional protease inhibitors as potential biocontrol agents. Urgent action to find effective control methods should be taken seriously as this weevil is presumed to be one of the serious pests of oil palm industry in Malaysia.

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“…RPWs have four phases in their life cycle: eggs, larvae, pupae, and adults. Corresponding to several articles, the eggs deposited by adult female RPWs vary, ranging from 180 eggs to 396 eggs [ 33 , 34 , 35 , 36 , 37 ]. Depending on where the attack begins along the palm tree, adult females lay eggs in wounds or openings at the palm crown or leaf scar [ 35 ].…”

Section: Biology and Distribution Of R Ferrugineusmentioning

confidence: 99%

“…Corresponding to several articles, the eggs deposited by adult female RPWs vary, ranging from 180 eggs to 396 eggs [ 33 , 34 , 35 , 36 , 37 ]. Depending on where the attack begins along the palm tree, adult females lay eggs in wounds or openings at the palm crown or leaf scar [ 35 ]. The complete life cycle of the RPW varies from 45 days to 180 days [ 2 , 3 ].…”

Section: Biology and Distribution Of R Ferrugineusmentioning

confidence: 99%

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A Review of Entomopathogenic Nematodes as a Biological Control Agent for Red Palm Weevil, Rhynchophorus ferrugineus (Coleoptera: Curculionidae)

Nurashikin-Khairuddin

Abdul-Hamid

Mansor

et al. 2022

Insects

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Rhynchophorus ferrugineus (Olivier) (Coleoptera: Curculionidae) is a severe pest of palm trees worldwide. The development and feeding activities of R. ferrugineus larvae inside the trunk damage palm trees. However, the absence of noticeable infestation signs at an early stage contributes to the spread of the attack. Integrated pest management (IPM) has been introduced to control R. ferrugineus infestation by implementing various approaches and techniques. The application of chemical pesticides has shown impressive results. However, biological control should be applied as an alternative solution due to adverse environmental impacts and pest resistance issues. One example is the use of entomopathogenic nematodes (EPNs) as biological control agents, which can forage and attack targeted pests without compromising the environment and other nontarget organisms. EPNs and their symbiotic bacteria have a mutualistic interaction that can kill the host within a short period of time. Therefore, this review emphasizes the effectiveness of entomopathogenic nematodes and their symbiotic bacteria against R. ferrugineus.

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Fecundity, Fertility and Survival of Red Palm Weevil (Rhynchophorus ferrugineus) Larvae Reared on Sago Palm

Abstract: Red palm weevil (RPW),

Cited by 12 publications

References 10 publications

Efficacy and Persistence of Entomopathogenic Fungi against Rhynchophorus ferrugineus on Date Palm: Host to Host Transmission

Efficacy and Persistence of Entomopathogenic Fungi against Rhynchophorus ferrugineus on Date Palm: Host to Host Transmission

Food Consumption, Developmental Time, and Protein Profile of the Digestive System of the Red Palm Weevil, Rhynchophorus ferrugineus (Coleptera: Dryophthoridae) Larvae Reared on Three Different Diets

A Review of Entomopathogenic Nematodes as a Biological Control Agent for Red Palm Weevil, Rhynchophorus ferrugineus (Coleoptera: Curculionidae)

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