Efficacy of aggregation nano gel pheromone traps on the catchability of Rhynchophorus ferrugineus (Olivier) in Egypt.

A S Abd El-Wahab,A Y Abd El-Fattah,A A El Helaly,W K M El-Shafei

doi:10.1590/1519-6984.231808

A S Abd El-Wahab, A Y Abd El-Fattah + Show 2 more

Open Access

https://doi.org/10.1590/1519-6984.231808

Copy DOI

Abstract

Field experiments were carried out in the reclaimed land east of Cairo-Alexandria Desert Road, Village of Wardan, Giza Governorate, Egypt, to evaluate the impact of using nano-gels pheromone for the first time on the attraction of the RPW adults by pheromone traps compared to the control which is normal pheromone during two successive seasons in 2018 and 2019. Also, this study aimed to compare the efficacy of two types of trap, traditional trap (type 1) and dry funnel trap (type 2) in capturing of RPW adults. Results revealed that the nano gel pheromone traps attracted significantly more adults with an average of (4.26 and 3.56) adults/trap and total of (55.33 and 46.33) adults/trap compared to control with an average (2.69 and 2.46) and total of (35.00 and 32.00) adults/trap for the two seasons 2018 and 2019 respectively. Results indicated that the use of nano gel pheromone for the first time in field improved the trap catchability to RPW adults by 22.51 and 18.30% of total number of RPW adults captured throw out the two successive seasons respectively. In addition, there was no significant difference between the total numbers of RPW adults collected by the two tested type of traps over the two successive seasons. Furthermore, the sex ratio between males and females of total collected RPW adults found to be1: 1.43 and 1: 1.94 at 2018 and 2019 respectively.

Highlights

The different cultivars of date palm Phoenix dactylifera L and ornamental palms Phoenix canariensis attacked by different species of insects especially red palm weevil
The beginning of the invasion of red palm weevil in the Gulf region in mid-1980s in UAE 1985 and Kingdom of Saudi Arabia in 1987 in 1992 the red palm weevil 452/460Rhynchophorus ferrugineus (RPW) was recorded for the first time in Egypt and after that it spread to many countries (Cox, 1993)
Analyzed and compared data revealed that there was no significant difference between the numbers of RPW adults captured by aggregation pheromone trap in the two seasons of study or in the two tested trap types

Summary

Introduction

The different cultivars of date palm Phoenix dactylifera L and ornamental palms Phoenix canariensis attacked by different species of insects especially red palm weevil 452 452/460Rhynchophorus ferrugineus (RPW) (Olivier) (Coleoptera: Curculionidae) which has become a global palm destroyer pest (Habib et al, 2017; Milosavljevic et al, 2019).Braz. Rhynchophorus ferrugineus (RPW) (Olivier) (Coleoptera: Curculionidae) which has become a global palm destroyer pest (Habib et al, 2017; Milosavljevic et al, 2019). According to Salem et al (2018) the red palm weevil have spread around the world in more than 50 countries because of transportation of infested palm trees to other countries which are free of RPW infestation. The beginning of the invasion of red palm weevil in the Gulf region in mid-1980s in UAE 1985 and Kingdom of Saudi Arabia in 1987 in 1992 the RPW was recorded for the first time in Egypt and after that it spread to many countries (Cox, 1993). The RPW infest more than nearly 40 palm species around the world (Al-Saroj et al, 2017; Al-Dosary et al, 2016). It is difficult to detect infestation in its early stages due to the absence of any symptoms of the injury as results of hidden larvae feeding (Hoddle et al, 2013; Milosavljević et al, 2019)

Objectives

Methods

Results

Conclusion