Population dynamics of Red Palm Weevil, Rhynchophorus ferrugineus (Olivier, 1790) Infesting Date Palm Trees in the 10th of Ramadan district, one of the new reclamation areas in Egypt.

Arafa, Olfat Elsayed; Batt, Mohammed Abd El-Ghany; El Shafei, Wael Kamal Mohamed

doi:10.21608/esjp.2024.346420.1003

Population dynamics of Red Palm Weevil, Rhynchophorus ferrugineus (Olivier, 1790) Infesting Date Palm Trees in the 10th of Ramadan district, one of the new reclamation areas in Egypt.

Document Type : Scientific articles

Authors

¹ Plant Protection Research Institute, Agricultural Research Center, Giza, Egypt

² Plant Protection Research Institute

³ Date palm pests &amp;diseases Department-central laboratory for date palm Agricultural Research center (ARC),

10.21608/esjp.2024.346420.1003

Abstract

Seasonal abundance of red palm weevil (RPW) adult population along two consecutive years (2022 and 2023) in date palm farms located at 10th of Ramadan, Sharkia Governorate, Egypt, one of the new reclamation areas, was determined using Aggregation pheromone traps. Results indicated that the caught adults in the first year had high population of red palm weevil than those caught in the second year. In the two studied years, three peaks were noted and recorded at March (387, 122), April (574, 200), and November (507, 179) adults for 2022 and 2023 respectively. The highest numbers of RPW adults were recorded in April. There were much more attracted females than males. In the two tested years the proportion of males was 45.27 and 43.60%, while females were 54.73 and 56.40%, respectively which represented 1:1.21 and 1:1.29 in the two tested years 2022 and 2023 respectively. Additionally, these findings demonstrated that the impact of weather factors on RPW adults capturing through both simple correlation and regression values was insignificantly positive for maximum, minimum, and mean temperature, while it was highly significant for mean relative humidity in 2022, furthermore, the correlation was insignificantly negative for maximum, minimum, and mean temperature, while it was significant for relative humidity in 2023. From the obtained results, it can be recommended that if the decision is made for IPM of RPW in the studied area using chemical control by preventive spraying, it must be in conjunction with the timing of the occurrence of the insect peaks.

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