scholarly journals Management of Deleterious Effect of Fusarium oxysporum Associated with Red Palm Weevil Infestation of Date Palm Trees

Agriculture ◽  
2022 ◽  
Vol 12 (1) ◽  
pp. 71
Author(s):  
El-Sayed H. E. Ziedan ◽  
Mohamed Hashem ◽  
Yasser S. Mostafa ◽  
Saad Alamri
Keyword(s):  
Fusarium Oxysporum ◽  
Date Palm ◽  
Trichoderma Viride ◽  
Fungal Species ◽  
Systemic Fungicide ◽  
Palm Tree ◽  
Red Palm Weevil ◽  
Palm Trees ◽  
Palm Weevil ◽  
Short Time

Red palm weevil (RPW) is a dangerous pest that infects the date palm tree and makes tunnels in the tree’s trunk. RPW infection is followed by secondary invaders of microorganisms that cause degradation of the trunk tissues leading to toppling the crown and death of the tree in a short time. This study showed that Fusarium oxysporum Schlecht. was the common fungal species isolated from the root and trunk tissues of the date trees infested with RPW, which recorded 100% of frequency. Pathogenicity of 4 isolates of F. oxysporum was confirmed on date palm seeds and seedlings. The results confirmed that all isolates involved in rot of the germinated seeds (40–100% incidence), root rot, and death of palm seedlings (20–100%) under artificial infection as well as degradation of date palm petioles. Application of 20 L/palm of systemic fungicide (Topsin) at 1% as foliar and soil drench of date palm for successive three times successfully reduced development of the deterioration and suppressed the growth of F. oxysporum. Interestingly this fungicide did not suppress the growth of Trichoderma viride Pers. So, our results recommend this fungicide to suppress the pathological and degradable activities of F. oxysporum during the integrated pest management of RPW on date palm trees.

scholarly journals AN EVALUATION OF INVASIVE PEST, RED PALM WEEVIL RHYNCHOPHORUS FERRUGINEUS (OLIVIER, 1790) (COLEOPTERA, CURCULIONIDAE) POPULATION IN IRAQ

2020 ◽  
Vol 16 (2) ◽  
pp. 203-218
Author(s):  
Mohammed M. Alderawii ◽  
◽  
Aqeel A. Alyousuf ◽  
Samir A. Hasan ◽  
Jasim K. Mohammed ◽  
...  
Keyword(s):  
Date Palm ◽  
Monitoring Program ◽  
Invasive Pest ◽  
Palm Tree ◽  
Rhynchophorus Ferrugineus ◽  
Red Palm Weevil ◽  
Palm Trees ◽  
Palm Weevil ◽  
Baited Traps ◽  
Management Protocol

The Red Palm Weevil (RPW), Rhynchophorus ferrugineus (Olivier, 1790) is a devastating invasive pest of palm trees, invading the Iraqi date palm tree in 2015 for the first time in Safwan county, Basrah province. The Red Palm weevil has been categorized as a quarantine pest of date palm trees worldwide. In this study, a five years monitoring program has been achieved by scouting the invasive pest RPW population in Safwan county by using visual sampling and Pheromone baited traps. The results indicated that the number of infested palms, increased from 12 trees in 2015 to 111 in 16 orchards in 2016. The number of the infested palms was minimized to 3 trees in the county in 2019 due to the management protocol of the Ministry of Agriculture. Furthermore, the results of RPW adults appeared monthly in the county with two activity peaks during the moderate-temperature-months. In conclusion, the quarantine and management protocol of RPW decreased the population of the invasive pest which did not spread to other districts of Iraq.

scholarly journals Pheromone receptor of the globally invasive quarantine pest of the palm tree, the red palm weevil (Rhynchophorus ferrugineus)

2020 ◽  
Author(s):  
Binu Antony ◽  
Jibin Johny ◽  
Nicolas Montagné ◽  
Emmanuelle Jacquin-Joly ◽  
Rémi Capoduro ◽  
...  
Keyword(s):  
Molecular Mechanisms ◽  
Insect Pest ◽  
Economic Losses ◽  
Palm Tree ◽  
Rhynchophorus Ferrugineus ◽  
Red Palm Weevil ◽  
Pheromone Receptor ◽  
Pheromone Detection ◽  
Palm Trees ◽  
Palm Weevil

AbstractPalm trees are of immense economic, sociocultural, touristic and patrimonial significance all over the world, and date palm-related knowledge, traditions and practices are now included in UNESCO’s list of the Intangible Cultural Heritage of Humanity. Of all the pests that infest these trees, the red palm weevil (RPW), Rhynchophorus ferrugineus (Olivier) is its primary enemy. The RPW is a category-1 quarantine insect pest that causes enormous economic losses in the cultivation of palm trees worldwide. The RPW synchronizes mass gathering on the palm tree for feeding and mating, regulated by a male-produced pheromone composed of two methyl-branched compounds, (4RS,5RS)-4-methylnonan-5-ol (ferrugineol) and 4(RS)-methylnonan-5-one (ferrugineone). Despite the importance of odorant detection in long-range orientation towards palm trees, palm colonization and mating, nothing regarding the molecular mechanisms of pheromone detection in this species is known. In this study, we report the identification and characterization of the first RPW pheromone receptor, RferOR1. Using gene silencing and functional expression in Drosophila olfactory receptor neurons, we demonstrate that RferOR1 is tuned to both ferrugineol and ferrugineone and binds five other structurally related molecules. We reveal the lifetime expression of RferOR1, which correlates with adult mating success irrespective of age, a factor that could explain the wide distribution and spread of this pest. As palm weevils are challenging to control based on conventional methods, elucidation of the mechanisms of pheromone detection opens new routes for mating disruption and the early detection of this pest via the development of pheromone receptor-based biosensors.

scholarly journals Effect of Irrigation on Within-Grove Distribution of Red Palm Weevil Rhynchophorous ferrugineus

2003 ◽  
Vol 8 (1) ◽  
pp. 47 ◽  
Author(s):  
Y. Aldryhim ◽  
S. Al-Bukiri
Keyword(s):  
Soil Moisture ◽  
Date Palm ◽  
Irrigation Management ◽  
Key Factors ◽  
Red Palm Weevil ◽  
Flood Irrigation ◽  
Management Tools ◽  
Palm Trees ◽  
Palm Weevil ◽  
Important Pest

The red palm weevil (RPW) Rhynchophorous ferrugineus (Oliv.) is the most important pest attacking date palm trees. The objective of this study was to determine the effect of drip and flood irrigation on the within-grove distribution of RPW. The current study was started with the first appearance of the infestation to almost disappearance of the infestation. Results showed that more infested trees were detected in plots with flood irrigation. The number of infested trees in these plots represented 89% of the total infested trees. This study suggested that irrigation management and soil moisture are key factors in the dispersion of the RPW infestation and could be used as one of the integrated pest management tools. 

scholarly journals The occurrence of Rhynchophorus ferrugineus in Greece and Cyprus and the risk against the native greek palm tree Phoenix theophrasti

2017 ◽  
Vol 16 ◽  
pp. 11 ◽  
Author(s):  
D.C. Kontodimas ◽  
P.G. Milonas ◽  
V. Vassiliou ◽  
N. Thymakis ◽  
D. Economou
Keyword(s):  
Date Palm ◽  
Palm Tree ◽  
Rhynchophorus Ferrugineus ◽  
Severe Damage ◽  
Red Palm Weevil ◽  
Phoenix Canariensis ◽  
Palm Trees ◽  
Important Pest ◽  
First Time ◽  
The Mediterranean Basin

The red palm weevil (RPW), Rhynchophorus ferrugineus (Coleopiera: Curculionidae), is the most important pest of palm trees in the world. In the last decade R. ferrugineus has invaded the Mediterranean basin where it causes severe damage in date palm cultivations as well as in ornamental palm trees. R. ferrugineus has been found for first time in Greece in Hersonissos (Heraklion district, Crete) infesting Phoenix canariensis, on November 11th, 2005 and for first time in Cyprus in Limassol district on August 20th, 2006, infesting also P. canariensis. Afterwards, R. ferrugineus has been found in Rhodos island, Greece, on 15/9/2006 and in Oropos and Ellinikon (Attiki district, Greece) on 5/12/2006 and 27/12/2006 respectively, infesting mainly P. canariensis. In Cyprus it has also been found in October 2006 in Larnaca, Famagusta and Paphos districts. In laboratory experimentation the susceptibility of the native Greek palm tree Phoenix theophrasti in R. ferrugineus was proved.

scholarly journals An Assessment of the Efficacy of Pheromone Traps in Managing the Red Palm Weevil

2021 ◽  
Vol 6 (2) ◽  
pp. 371-384
Author(s):  
Rachid Sabbahi ◽  
Khalil Azzaoui ◽  
Belkheir Hammouti
Keyword(s):  
Date Palm ◽  
Pheromone Trap ◽  
Pheromone Traps ◽  
Red Palm Weevil ◽  
Palm Trees ◽  
Palm Weevil ◽  
Funnel Trap ◽  
Promising Solution ◽  
The Mean ◽  
Experiment Analysis

This experiment was performed in date palm farms to assess the effectiveness of a newly designed pheromone trap (i.e., funnel trap) in capturing red palm weevil (RPW) adults and to compare it to traditional traps. The number of captured RPWs varied by month, with a total of 3931 adults captured during the experiment. Analysis of variance demonstrated significant differences in the number of captures between the three traps. The funnel traps captured 1627 RPW adults in total, while the buried and burlap bucket traps captured 1079 and 1225 weevils, respectively. The mean (± SE) number of captures/trap/weeks was 2.62 ± 0.11 in funnel traps, which was significantly higher than that of buried bucket traps (1.73 ± 0.06) and burlap bucket traps (1.97 ± 0.07). Both sexes were attracted to traps; however, the number of female weevils captured was significantly higher than that of males with a sex ratio (female/male) of 1.58 ± 0.03. According to the findings, the pheromone-food-bait funnel trap is a promising solution for reducing RPW populations and thus protecting date palm trees from infestations.

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