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Afshan Irshad

Pakistan Institute of Engineering and Applied Sciences

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Muhammad Sohail Azam

Pakistan Institute of Engineering and Applied Sciences

Izhar Ahmad

Pakistan Institute of Engineering and Applied Sciences

Muhammad Farooq Hussain Munis

Quaid-i-Azam University

Mazhar Iqbal

Pakistan Institute of Engineering and Applied Sciences

Azhar Hussain Malik

Pakistan Institute of Engineering and Applied Sciences

Sehar Fatima

Pakistan Agricultural Research Council

Awais Rasool

Pakistan Agricultural Research Council

Said Hussain Shah

Pakistan Agricultural Research Council

Ihsan ul Haq

Pakistan Agricultural Research Council

Todd E. Shelly

Hawaii Agriculture Research Center

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Pakistan Institute of Engineering and Applied Sciences

Pakistan Agricultural Research Council

Quaid-i-Azam University

Ludwig-Maximilians-Universität München

Pakistan Institute of Nuclear Science and Technology

University of Agriculture Faisalabad

Hawaii Agriculture Research Center

United States Department of Agriculture

Animal and Plant Health Inspection Service

Istanbul Commerce University

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Age‐dependent effect of methyl eugenol on male mating success of the peach fruit fly, Bactrocera zonata

Entomologia Experimentalis et Applicata (2023)

Awais Rasool Muhammad Farooq Hussain Munis Said Hussain Shah Sehar Fatima Afshan Irshad

Abstract The peach fruit fly, Bactrocera zonata (Saunders) (Diptera: Tephritidae), is a pest of economic importance, endemic to South and South‐East Asia. It is highly invasive and due to its quarantine pest status, it interferes with horticultural trade. Males of many Bactrocera species are strongly attracted to methyl eugenol (ME) [1,2‐dimethoxy‐4‐(2‐propenyl) benzene], a phenylpropanoid compound naturally occurring in many plant species. Feeding on ME is also reported to enhance male mating success in several Bactrocera species. Such an effect can increase the effectiveness of the sterile insect technique (SIT). The current study was designed to identify the sexual maturity age of males of B. zonata , the relation between male age and attraction to ME, and the effect of ME on male mating success. The results showed that males initiated their mating at 8 days of age and attained the highest mating success at 16 days of age. The percentage of immature males responding to ME increased with age and the maximum response was observed during the age of sexual maturity. Methyl eugenol treatment at sexual maturity significantly enhanced male mating success over untreated males. The males treated with ME at a sexually immature age (5 days old) achieved significantly higher mating success after reaching sexual maturity. These findings suggested that B. zonata males can be treated with ME at the age of 5 days in sterile‐male ‘holding and release’ facilities and thereafter released in the field, where they are expected to achieve higher mating success after attaining sexual maturity. The results are discussed as a valid approach for enhancing the effectiveness of SIT application against B. zonata .

Methyl eugenol

Sexual maturity

Sterile Insect Technique

Bactrocera

10.1111/eea.13336

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Elastic Parameter Measurement by Comparison of Modal Analysis Using ANSYS Workbench and Pulsed Laser Impulse Excited Frequency Response of Fully Clamped Thin Square Soda Lime Glass

Journal of Vibration Engineering & Technologies (2022)

Muhammad Sohail Azam Azhar Hussain Malik Afshan Irshad Mazhar Iqbal Izhar Ahmad

10.1007/s42417-022-00628-3

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Methyl eugenol aromatherapy: a delivery system facilitating the simultaneous application of male annihilation and sterile insect technique against the peach fruit fly

Pest Management Science (2023)

Awais Rasool Sehar Fatima Said Hussain Shah Muhammad Farooq Hussain Munis Afshan Irshad

Abstract BACKGROUND The peach fruit fly, Bactrocera zonata (Saunders) (Diptera: Tephritidae) is an economically important polyphagous, quarantine pest endemic to South and South‐East Asia. The male annihilation technique (MAT) and the sterile insect technique (SIT) are environmentally benign techniques used to suppress fruit fly populations on an area‐wide basis. The MAT and SIT are typically used sequentially to avoid killing released sterile males; however, MAT and SIT potentially could be used simultaneously and thereby increase the overall efficiency of control programmes. Mating competitiveness of sterile males against wild counterparts is critical for the success of the SIT. Feeding on a semiochemical, methyl eugenol (ME) has been reported to enhance the male mating performance of many Bactrocera spp., including B. zonata , but its use in SIT operational programmes is limited owing to the absence of a viable delivery system. RESULTS In the present study, we demonstrated that ME aromatherapy, a practical method for large‐scale delivery of ME olfactorily, enhances the mating success of treated B. zonata males. ME aromatherapy application to 5‐day‐old immature males for a duration of 5 h resulted in increased mating success of males tested when sexually mature, compared to untreated males. The ME‐aromatized males also exhibited reduced attraction to ME‐lure. CONCLUSION A practical delivery system for applying ME by aromatherapy to mass‐reared males was developed. ME‐aromatherapy enhanced male mating success and suppressed their subsequent attraction to ME, thus enabling the application of MAT and SIT at the same time. © 2023 Society of Chemical Industry.

Methyl eugenol

Aromatherapy

10.1002/ps.7877

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Measurement of natural frequency and mechanical damping of thin brass diaphragm by pulsed laser generated vibrations

Journal of Vibroengineering (2022)

Muhammad Sohail Azam Azhar Hussain Malik Afshan Irshad Mazhar Iqbal Izhar Ahmad

Damped harmonic oscillator model based fitting of nanosecond pulsed laser induced amplitude variations of clamped vibrating circular plate is used to estimate the mechanical damping and natural frequency of the sample in current work. Laser Pulses of 50 mJ energy, 20 ns duration, and focused at a spot of 4 mm diameter at the center of the circular thin brass sheet of 100 µm thickness is used to generate vibrations in the target. Quadrature Michelson interferometer (QMI) with CW laser focused on the opposite side of the target surface is used to measure the amplitude of vibrations. Variations of fringe frequencies are identified in the frequency domain. Finite element based numerical modal analyses are also performed in ANSYS Workbench for the verification of experimental results for the same geometry and materials. Experimental frequencies of vibrations are found to match nearly 2 percent of FEM modes. Moreover, Elastic parameters are also found using the first two mode frequencies and a reasonable agreement is observed while comparing with the elastic parameter data of brass. Current work in itself is a unique attempt of getting mechanical parameters for the determination of elastic parameters in a single laser pulse impulse excited measurement for thin clamped targets.

Brass

Natural frequency

Lissajous curve

10.21595/jve.2022.22464

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Citations (4)