Host Plant Species of Bemisia tabaci Affect Orientational Behavior of the Ladybeetle Serangium japonicum and Their Implication for the Biological Control Strategy of Whiteflies

Tian, Mi; Xu, Lili; Jiang, Jun; Zhang, Shize; Liu, Tong‐Xian; Xu, Yaobo

doi:10.3390/insects11070434

Cited by 6 publications

(5 citation statements)

References 40 publications

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“…In this experiment, the responses of larval (1st instar, 2nd instar, 3rd instar, and 4th instar) and adult (3 days old) ladybirds to CBEO were investigated using a Y-tube olfactometer apparatus (20 cm upstream arm, 25 cm common arm, 3 cm internal diameter, and 60° branching angle). Bioassays were conducted in accordance with a previously published protocol [ 31 , 32 , 33 ]. Treatment with CBEO at 400 µL/mL was applied as a test stimulus.…”

Section: Methodsmentioning

confidence: 99%

Exploration of Clove Bud (Syzygium aromaticum) Essential Oil as a Novel Attractant against Bactrocera dorsalis (Hendel) and Its Safety Evaluation

Yang

Chen

et al. 2022

Insects

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The oriental fruit fly Bactrocera dorsalis (Hendel) is a destructive polyphagous species that targets many economically important fruits and vegetables. The primary control of B. dorsalis relies mainly on the use of synthetic chemicals, and excessive use of these chemicals has adverse effects on both the environment and human health. Environmentally friendly management of pests involving plant essential oils is useful for controlling the populations of pests responsible for decreasing the yields and quality of crops. In the present study, we demonstrate that clove bud essential oil (CBEO) is strongly attractive to sexually mature males. Mature males responded to the CBEO differently throughout the day; the strongest response was elicited during the day and decreased at dusk. Virgin and mated mature males did not respond differently to CBEO. No obvious response behaviour to the CBEO was observed in two species of beneficial natural predator ladybirds. In addition, a cytotoxicity assessment demonstrated that CBEO is nontoxic to normal human and mouse cells. Based on our laboratory experiments, CBEO may serve as a promising, sustainable, and environmentally friendly attractant for B. dorsalis males; however, field experiments are needed to confirm this hypothesis.

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Section: Methodsmentioning

confidence: 99%

Exploration of Clove Bud (Syzygium aromaticum) Essential Oil as a Novel Attractant against Bactrocera dorsalis (Hendel) and Its Safety Evaluation

Yang

Chen

et al. 2022

Insects

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“…A total of 30 E. formosa insects were examined for responding to the volatile in each treatment, following which the reaction rate was calculated. The takeoff time, the time to reach the midpoint of the wind tunnel, the time to reach a distance of 10 cm away from the volatile, and the time to reach the volatile were recorded 35–37 …”

Section: Methodsmentioning

confidence: 99%

Effect of sublethal Spirotetramat on host locating and parasitic behavior of Encarsia formosa Gahan

Yang

Shang

et al. 2021

Pest Management Science

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BACKGROUND The use of chemical insecticides to control Bemisia tabaci Gennadius (Hemiptera: Aleyrodidae) is widespread, although it might exert a sublethal effect on its dominant parasitoid, Encarsia formosa Gahan (Hymenoptera: Aphelinidae). To investigate the sublethal effect of spirotetramat on E. formosa, we observed the ability of E. formosa to locate and handle the host, oviposit and preen after exposure to sublethal concentrations of spirotetramat. RESULTS After exposure to spirotetramat at LC50, the response time of E. formosa to the volatile reached 223.40 s and was significantly prolonged. Only 56.44% of the wasps were attracted by the volatile and the insect crawled the slowest among all of the treatments. The averages of oviposition posture adopted and host handled by each E. formosa in 1 h decreased significantly to 1.79 and 1.27, respectively. At the sublethal concentration of LC10, 94.59% of the wasps were attracted by the volatile and the insect crawled the fastest. The average of host handled by each E. formosa was 3.92, and the frequency of drumming while walking and drumming the host was 12.34 times per second and 12.30 times per second, respectively, demonstrating a significant acceleration in these abilities. CONCLUSION These findings demonstrate that spirotetramat induced hormesis in E. formosa on exposure to its LC10 concentration and accelerated its host locating, host handling and frequency of antennae drumming. These findings could assist in balancing the chemical and biological control of B. tabaci and enhancing the efficacy of E. formosa as a biocontrol agent. © 2021 Society of Chemical Industry.

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“…A Y-tube olfactometer system [44][45][46][47][48][49] was used to investigate the behavioral reactions of gravid Z. tau females to the volatile compounds from the fruit of S. muricatum. The Y-tube olfactometer system consisted of air pump that produced a unidirectional airflow; activated charcoal bottles that filtered air; and distilled water bottles that humidified air, flowmeters that controlled the speed of airflow at 200 mL/min, volatile source bottles, a Yshaped glass tube (length of main stem: 20 cm; length of each arm: 20 cm; branching angle: 60 • ; inner diameter: 3 cm), and silicone tubing that connected all the components of the system.…”

Section: Olfactometer Bioassaysmentioning

confidence: 99%

“…In each case, the percentage of insects that made a distinct choice was calculated (responses rate % = the number of responders/the total number of females; choice rate % = the number of effective choices/the total number of females; tendency rate % = the number of effective choices to treatment; repellency rate % = the number of effective choices to control). Each group of females in the experiment was used only once, and the Y-tube and volatile source bottle were cleaned with absolute ethanol and dried in a 70 • C oven for 20 min after each experiment [48]. After one group had been observed, the Y-tubes and the volatile source bottle were replaced with clean tubes, and the Y-tube and reagent were rotated 180 • to minimize any positional bias effects [48].…”

Section: Olfactometer Bioassaysmentioning

confidence: 99%

“…Each group of females in the experiment was used only once, and the Y-tube and volatile source bottle were cleaned with absolute ethanol and dried in a 70 • C oven for 20 min after each experiment [48]. After one group had been observed, the Y-tubes and the volatile source bottle were replaced with clean tubes, and the Y-tube and reagent were rotated 180 • to minimize any positional bias effects [48]. Each concentration of reagent was tasted four times [49].…”

Section: Olfactometer Bioassaysmentioning

confidence: 99%

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Evaluation of the Attractant Effect of Solanum muricatum (Solanales: Solanaceae) on Gravid Female Adults of Zeugodacus tau (Diptera: Tephritidae) and Screening of Attractant Volatiles

Jia

Wang

et al. 2023

Insects

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Zeugodacus tau (Walker) (Diptera: Tephritidae) is a pest seriously harmful to Solanaceae crops and was found to oviposit on the pepino melon Solanum muricatum (Aiton). To date, the differences in the ability of the fruits of S. muricatum and other Solanaceae crops to attract gravid Z. tau females have seldom been reported. Oviposition and trapping bioassays were performed to clarify whether such differences existed. A combination of GC-MS and the Y-tube olfactometer system was used to identify and determine the compounds inducing behavioral responses in gravid Z. tau females to the volatile odors of S. muricatum. The results show that S. muricatum odors play a role in attracting gravid Z. tau females. The odors of Solanaceae crops influence their ability to attract these organisms. The nine compounds from the volatiles of S. muricatum induce tendency or repellency responses in gravid Z. tau females. Hexyl acetate, butyl acetate, amyl actate, and isoamyl acetate caused tendency behavior in gravid Z. tau females, while hexyl hexanoate, butyl isovalerate, butyl valerate, and isoamyl hexanoate caused repellency behavior. Heptyl acetate caused repellency behavior in gravid Z. tau females at higher concentrations (5 mg/mL) but caused tendency behavior at a low concentration (0.5 mg/mL). These results suggest that vigilance against the harm caused by Z. tau is required during the cultivation of S. muricatum. The nine compounds of the volatile odors of S. muricatum could help to develop attractants and repellents for gravid Z. tau females. These results are beneficial for preventing Z. tau females from harming S. muricatum, developing attractants and repellents for Z. tau females, and establishing a system of ecological control for Z. tau females.

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Host Plant Species of Bemisia tabaci Affect Orientational Behavior of the Ladybeetle Serangium japonicum and Their Implication for the Biological Control Strategy of Whiteflies

Cited by 6 publications

References 40 publications

Exploration of Clove Bud (Syzygium aromaticum) Essential Oil as a Novel Attractant against Bactrocera dorsalis (Hendel) and Its Safety Evaluation

Exploration of Clove Bud (Syzygium aromaticum) Essential Oil as a Novel Attractant against Bactrocera dorsalis (Hendel) and Its Safety Evaluation

Effect of sublethal Spirotetramat on host locating and parasitic behavior of Encarsia formosa Gahan

Evaluation of the Attractant Effect of Solanum muricatum (Solanales: Solanaceae) on Gravid Female Adults of Zeugodacus tau (Diptera: Tephritidae) and Screening of Attractant Volatiles

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