Susceptibility of Rhynchophorus ferrugineus (Olivier) (Coleoptera: Curculionidae) to entomopathogenic nematodes with regard to its immune response

Sadawy, Hanan A. El; Namaky, Amira H. El; Omari, Fawzya Al; Bahareth, Osama M.

doi:10.1016/j.biocontrol.2020.104308

Cited by 10 publications

(6 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Laboratory studies conducted on the susceptibility of the different developmental stages of the red palm weevil to infection by entomopathogenic nematodes have had contradictory results. El Sadaway [ 50 ] reported that the Steinernematids were the most pathogenic against the adult stage of the red palm weevil compared with late instar larvae.…”

Section: Discussionmentioning

confidence: 99%

Evaluation of Entomopathogenic Nematodes against Red Palm Weevil, Rhynchophorus ferrugineus (Olivier) (Coleoptera: Curculionidae)

Rehman

Mamoon-ur-Rashid

2022

Insects

View full text Add to dashboard Cite

Entomopathogenic nematodes play a pivotal role as biocontrol agents for different species of insect pests, including the red palm weevil. In the current investigation, the infective capabilities of four species of entomopathogenic nematodes, including Hetrerorhabditis bacteriophora, Steinernema feltiae, Steinernema glaseri, and Steinernema carpocapsae, were evaluated against larvae, pupae, and adult red palm weevil under laboratory and field conditions. The pathogenic potential of selected nematode species was assessed based on dissection and adult emergence of weevils. Our results indicated that S. carpocapsae and H. bacteriophora, with a respective 94.68 and 92.68% infection rate, were the most effective EPN species against red palm weevil larvae. Focusing on adult emergence, the aforementioned EPNs were comparatively less pathogenic and resulted in 63.60 and 60.20% infested pupae, respectively. It is noted that adult emergence is the better option to evaluate the pathogenic potential of EPNs, compared with the dissection of insects. The S. carpocapsae was found to be most effective against the 6th instar larvae of the red palm weevil and caused 100% mortality at 240 h after treatment. On the other hand, S. glaseri and S. feltiae were found to be the least pathogenic and caused 70 and 76% mortality, respectively. All of the evaluated nematode species were found to be highly infective under field conditions. The S. carpocapsae was found to be the most pathogenic, causing 83.60% mortality of the red palm weevil. However, the tested nematodes were found most effective against larvae, followed by adult weevils, but their effect was minimal against the pupae of red palm weevils. Based on these findings, we conclude that the S. carpocapsae and H. bacteriophora could be used as a sustainable option for the efficient management of the red palm weevil.

show abstract

Section: Discussionmentioning

confidence: 99%

Evaluation of Entomopathogenic Nematodes against Red Palm Weevil, Rhynchophorus ferrugineus (Olivier) (Coleoptera: Curculionidae)

Rehman

Mamoon-ur-Rashid

2022

Insects

View full text Add to dashboard Cite

show abstract

“…All seven EPNs species killed all stages of the RPW, but the emergence of IJs from the adult RPW was recorded in Steinernema pakistanense . However, a single species of EPNs does not have the same virulence towards all stages of the RPW [ 104 , 105 ]. For instance, Steinernema scapterisci, Steinernema sp.…”

Section: Application Of Entomopathogenic Nematodes As Biological Cont...mentioning

confidence: 99%

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

View full text Add to dashboard Cite

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.

show abstract

“…Currently, the primary methods of control involve the use of chemical insecticides ( Reyad et al, 2020 ; Milosavljević et al, 2022 ), pheromone trapping ( El-Shafie & Faleiro, 2017 ; Dalbon et al, 2021 ; Al Ansi et al, 2022 ) and fumigants ( Llácer & Jacas, 2010 ; Wakil et al, 2018 ). Research on biological control mainly focuses on the use of natural enemies ( Löhr, Negrisoli & Molina, 2019 ), entomopathogenic nematodes ( El Sadawy et al, 2020 ; Rehman & Mamoon-ur-Rashid, 2022 ), entomopathogenic bacteria ( Yasin et al, 2021 ), and entomopathogenic fungi ( Al-Keridis, Gaber & Aldawood, 2020 ; Ziedan et al, 2022 ).…”

Section: Introductionmentioning

confidence: 99%

Virulence of entomopathogenic bacteria Serratia marcescens against the red palm weevil, Rhynchophorus ferrugineus (Olivier)

Zhong,

Lv,

et al. 2023

PeerJ

View full text Add to dashboard Cite

Background The red palm weevil (RPW), Rhynchophorus ferrugineus (Olivier), is an important quarantine pest, which has caused serious economic losses in various palm species, such as coconut, oil palm and date palm. Finding effective biocontrol resources is important for the control of this pest and the protection of palm crops. Methods A pathogenic strain HJ-01 was isolated from infected and dead pupa of Tenebrio molitor using tissue separation method. The HJ-01 strain was streak cultured and purified, and its morphological, physiological, biochemical characteristics, and 16S rDNA homology were identified after conducting a pathogenicity test on RPW larvae. Results Strain HJ-01 exhibited remarkable pathogenicity against RPW larvae. Under the concentration of HJ-01 suspension was 1.0 × 108 cfu/mL, the mortality rate of RPW reached 82.22%, and the half-lethal time (LT50) was 4.72 days. RPW larvae infected with strain HJ-01 showed reduced movement, decreased appetite, and eventual death. As the treatment progresses, the larvae’s bodies turned red, became soft, and started to rot, resulting in the discharge of liquid. HJ-01 demonstrated the ability to produce scarlet pigment after 24 h of culture on a basic medium. Colonies of HJ-01 appeared convex, bright red, moist, and viscous, opaque in the center, irregular at the edges, and emitted an unpleasant odor. Under microscopic observation, the cells of HJ-01 appeared as short rod-shaped and flagellate, with a size ranging from (1.2–1.8) μm × (1.0–1.2) μm. Genomic DNA extraction was performed on the strain, and the 16S rDNA sequence was amplified, yielding a sequence length of 1445 bp. The sequence of strain HJ-01 displayed a 99.72% similarity to that of Serratia marcescens. Phylogenetic tree analysis further confirmed that strain HJ-01 belonged to S. marcescens. Therefore, the strain HJ-01 has a very good lethal effect on RPW larvae, and it may be used as an effective bacterium for the control of RPW.

show abstract

Susceptibility of Rhynchophorus ferrugineus (Olivier) (Coleoptera: Curculionidae) to entomopathogenic nematodes with regard to its immune response

Cited by 10 publications

References 21 publications

Evaluation of Entomopathogenic Nematodes against Red Palm Weevil, Rhynchophorus ferrugineus (Olivier) (Coleoptera: Curculionidae)

Evaluation of Entomopathogenic Nematodes against Red Palm Weevil, Rhynchophorus ferrugineus (Olivier) (Coleoptera: Curculionidae)

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

Virulence of entomopathogenic bacteria Serratia marcescens against the red palm weevil, Rhynchophorus ferrugineus (Olivier)

Contact Info

Product

Resources

About