1
|
Vacas S, Navarro Fuertes I, García-García V, Marzo Bargues J, Abad-Somovilla A, Primo J, Navarro-Llopis V. New Monoterpenoid as the Sex Pheromone of Spanish Populations of the Longtailed Mealybug Pseudococcus Longispinus (Hemiptera: Pseudococcidae). JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:12478-12488. [PMID: 38769753 PMCID: PMC11157542 DOI: 10.1021/acs.jafc.4c00921] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Revised: 05/07/2024] [Accepted: 05/14/2024] [Indexed: 05/22/2024]
Abstract
Pseudococcus longispinus (Targioni-Tozzetti) (Hemiptera: Coccoidea: Pseudococcidae), a polyphagous and cosmopolitan pest native to Australia, is a highly damaging pest for numerous crops of economic importance. The sex pheromone of this species (2-(1,5,5-trimethylcyclopent-2-en-1-yl)ethyl acetate), currently used for pest monitoring purposes, was not attractive to males in field experiments conducted in Spanish persimmon orchards infested with this mealybug. The virgin and mated female volatile profiles of these P. longispinus populations were studied by the volatile collection of effluvia in Porapak-Q. The resulting extracts were analyzed by gas chromatography coupled to mass spectrometry (GC-MS), revealing a new compound specific to virgin females and different from the previously described sex pheromone. Based on GC-MS data and nuclear magnetic resonance experiments, we envisaged monoterpene 2-(1,5-dimethyl-4-methylenecyclopent-2-en-1-yl)ethyl acetate as the new sex pheromone candidate, which was synthesized and shown to be attractive in the field to P. longispinus males of the Spanish population.
Collapse
Affiliation(s)
- Sandra Vacas
- CEQA-Instituto
Agroforestal del Mediterráneo, Universitat Politècnica
de València, Camino de Vera
s/n, edificio 6C-5 planta, Valencia, Valencia 46022, Spain
| | - Ismael Navarro Fuertes
- Universitat
de València, Facultat de Químiques, Departamento de
Química Orgánica, Dr. Moliner 50, Burjassot, Valencia 46100, Spain
| | - Víctor García-García
- Universitat
de València, Facultat de Químiques, Departamento de
Química Orgánica, Dr. Moliner 50, Burjassot, Valencia 46100, Spain
| | - Javier Marzo Bargues
- Ecología
y Protección Agrícola SL, Pol. Ind. Ciutat de Carlet, Carlet, Valencia 46240, Spain
| | - Antonio Abad-Somovilla
- Universitat
de València, Facultat de Químiques, Departamento de
Química Orgánica, Dr. Moliner 50, Burjassot, Valencia 46100, Spain
| | - Jaime Primo
- CEQA-Instituto
Agroforestal del Mediterráneo, Universitat Politècnica
de València, Camino de Vera
s/n, edificio 6C-5 planta, Valencia, Valencia 46022, Spain
| | - Vicente Navarro-Llopis
- CEQA-Instituto
Agroforestal del Mediterráneo, Universitat Politècnica
de València, Camino de Vera
s/n, edificio 6C-5 planta, Valencia, Valencia 46022, Spain
| |
Collapse
|
2
|
Cheng X, Wen Q, Li Y, Wang S, Fan G, Ma Z, Guo Y, Li X, Zhang H. Exploration of D-limonene as a sex pheromone for males of Bactrocera minax (Diptera: Tephritidae). PEST MANAGEMENT SCIENCE 2024; 80:1868-1876. [PMID: 38041609 DOI: 10.1002/ps.7914] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Revised: 11/26/2023] [Accepted: 12/02/2023] [Indexed: 12/03/2023]
Abstract
BACKGROUND Bactrocera minax is a devastating pest of citrus fruits. However, there have been no effective control measures before. Few reports on the sex pheromones of B. minax are available. RESULTS In this study, nine of the volatile compounds in adult females were identified using headspace solid-phase microextraction (HS-SPME) in combination with gas chromatography-mass spectrometry (GC-MS). Among them, d-limonene, caprolactam, 2-Nitro-1H-imidazole, and creatinine could evoke antennal responses in males. Field bioassays showed that only d-limonene could lure male flies, with a relative lure rate of 78.18% in all tested samples, which was significantly higher than that of paraffin oil control, while all volatile compounds did not have any lure effective to female flies. Moreover, d-limonene was diluted with paraffin oil into differential concentrations, the lure effect on males was better at 100, 500, and 800 μL d-limonene mL-1 than pure d-limonene (1000 μL mL-1 ). The relative male lure rate of d-limonene at 100 μL mL-1 was 85.88%, which was significantly higher than that of food-baits (14.12%) on day 3. However, d-limonene was unattractive to female and male Bactrocera dorsalis and Zeugodacus tau. Further kinetic analysis showed that female adults released d-limonene around 15-day post eclosion. Electroantennography 1 results showed that 500 μL mL-1 d-limonene evoked the strongest responses to antennae of 10- to 25-day-old male flies. CONCLUSION Our results indicated that d-limonene could be a sex pheromone from female flies of B. minax, and it could be used as a male-specific sex attractant for B. minax. © 2023 Society of Chemical Industry.
Collapse
Affiliation(s)
- Xiaoqin Cheng
- National Key Laboratory for Germplasm Innovation and Utilization for Fruit and Vegetable Horticultural Crops, Hubei Hongshan Laboratory, China-Australia Joint Centre for Horticultural and Urban Pests, Institute of Urban and Horticultural Pests, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Qiang Wen
- National Key Laboratory for Germplasm Innovation and Utilization for Fruit and Vegetable Horticultural Crops, Hubei Hongshan Laboratory, China-Australia Joint Centre for Horticultural and Urban Pests, Institute of Urban and Horticultural Pests, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Yunna Li
- National Key Laboratory for Germplasm Innovation and Utilization for Fruit and Vegetable Horticultural Crops, Hubei Hongshan Laboratory, China-Australia Joint Centre for Horticultural and Urban Pests, Institute of Urban and Horticultural Pests, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Shanshan Wang
- National Key Laboratory for Germplasm Innovation and Utilization for Fruit and Vegetable Horticultural Crops, Hubei Hongshan Laboratory, China-Australia Joint Centre for Horticultural and Urban Pests, Institute of Urban and Horticultural Pests, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Gang Fan
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Zhaocheng Ma
- College of Horticulture & Forestry Sciences, Huazhong Agricultural University, Wuhan, China
| | - Yuancheng Guo
- Danjiangkou Citrus Experimental Station, Danjiangkou, China
| | - Xiaoxue Li
- National Key Laboratory for Germplasm Innovation and Utilization for Fruit and Vegetable Horticultural Crops, Hubei Hongshan Laboratory, China-Australia Joint Centre for Horticultural and Urban Pests, Institute of Urban and Horticultural Pests, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Hongyu Zhang
- National Key Laboratory for Germplasm Innovation and Utilization for Fruit and Vegetable Horticultural Crops, Hubei Hongshan Laboratory, China-Australia Joint Centre for Horticultural and Urban Pests, Institute of Urban and Horticultural Pests, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, China
| |
Collapse
|
3
|
Ballesteros C, Chorbadjian RA, Zaviezo T. Mating behavior of Pseudococcus calceolariae and Pseudococcus longispinus (Hemiptera: Pseudococcidae): are asexual reproduction and hybridization possible? JOURNAL OF INSECT SCIENCE (ONLINE) 2023; 23:17. [PMID: 37565770 PMCID: PMC10416559 DOI: 10.1093/jisesa/iead058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Revised: 05/09/2023] [Accepted: 07/11/2023] [Indexed: 08/12/2023]
Abstract
The study of insect reproduction is important from both basic and applied perspectives, particularly in mealybugs (Hemiptera: Pseudococcidae), because of the diversity of reproduction modes and also because they are important agricultural pests. Sex pheromone control strategies are currently being developed for many species. Pseudococcus calceolariae (Maskell) and Pseudococcus longispinus (Targioni Tozzetti) are closely related species that often coexist in the same host plant. In this study, mating behavior, the possible occurrence of asexual reproduction, and hybridization between them were investigated. We confirmed that both species did not show asexual reproduction and required the presence of a male to reproduce. When couples of the same species were put together, males had a highly stereotyped mating behavior, and females showed an active role in mating success by accepting or rejecting males with abdominal movements. In hybridization trials, no progeny was obtained for any of the interspecific combinations. Moreover, in interspecific pairs, males mainly moved randomly in the arena without direct contact with females and females showed no willingness to mate, escape, or not move in the presence of the male. Therefore, courtship and copulation success in both species were directly related to the specificity of the mating pair and, there was no evidence of hybridization. This information is useful for the understanding of reproduction in this family and supports the development of management techniques based on sex pheromones to disrupt reproduction or to monitor these mealybug species populations.
Collapse
Affiliation(s)
- Carolina Ballesteros
- Facultad de Agronomía e Ingeniería Forestal, Pontificia Universidad Católica de Chile, Avda. Vicuña Mackenna 4860, Macul, Santiago 7820436, Chile
| | - Rodrigo A Chorbadjian
- Facultad de Agronomía e Ingeniería Forestal, Pontificia Universidad Católica de Chile, Avda. Vicuña Mackenna 4860, Macul, Santiago 7820436, Chile
| | - Tania Zaviezo
- Facultad de Agronomía e Ingeniería Forestal, Pontificia Universidad Católica de Chile, Avda. Vicuña Mackenna 4860, Macul, Santiago 7820436, Chile
| |
Collapse
|
4
|
Daane KM, Cooper ML, Mercer NH, Hogg BN, Yokota GY, Haviland DR, Welter SC, Cave FE, Sial AA, Boyd EA. Pheromone Deployment Strategies for Mating Disruption of a Vineyard Mealybug. JOURNAL OF ECONOMIC ENTOMOLOGY 2021; 114:2439-2451. [PMID: 34694405 PMCID: PMC8648387 DOI: 10.1093/jee/toab198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Indexed: 06/13/2023]
Abstract
The mealybug, Planococcus ficus (Signoret), is a primary vineyard pest in California and other grape-growing regions throughout the World. Mating disruption programs are commercially available to manage Pl. ficus, but widespread adoption has been limited, in part, by high costs compared with insecticide programs. To improve mating disruption economic effectiveness, different deployment technologies (passive, aerosol, and microencapsulated formulations) were individually examined. Adult male Pl. ficus captures in pheromone traps and categorical ratings of vine infestation or crop damage suggest that all deployment strategies lowered mealybug densities or damage. Using passive dispensers, deployment rates of 310 and 465 per ha lowered Pl. ficus crop damage similar to 615 per ha, a rate commonly used in commercial operations; reduced rates would lower product and deployment costs. Meso dispensers, containing more a.i., deployed at 35 per ha did not have a treatment impact, but a microencapsulated formulation and aerosol canisters lowered male flight captures and/or crop damage. Male mealybug flight activity was greatest from 0500-1100 hr, which coincided with temperatures >16° and <32°C. These restricted times and temperatures suggest programable dispensers might allow pheromone deployment to coincide only with flight patterns. A large field trial using passive dispensers found greater treatment separation after 3 yr of pheromone deployment. Discrepancies in results among vineyards may be related to Pl. ficus density, but combined results from all trials suggest that different deployment technologies can be used to impact Pl. ficus densities and damage, even at reduced rates, especially with continued use over multiple seasons.
Collapse
Affiliation(s)
- Kent M Daane
- Department of Environmental Science, Policy, and Management, University of California, Berkeley, CA, USA
| | - Monica L Cooper
- Department of Environmental Science, Policy, and Management, University of California, Berkeley, CA, USA
- University of California Cooperative Extension, Napa County, 1710 Soscol Avenue, Napa, CA, USA
| | - Nathan H Mercer
- Department of Environmental Science, Policy, and Management, University of California, Berkeley, CA, USA
| | - Brian N Hogg
- Department of Environmental Science, Policy, and Management, University of California, Berkeley, CA, USA
- USDA-ARS, Invasive Species and Pollinator Health Research Unit, Albany, CA, USA
| | - Glenn Y Yokota
- Department of Environmental Science, Policy, and Management, University of California, Berkeley, CA, USA
| | - David R Haviland
- University of California Cooperative Extension, Kern County, 1031 South Mount Vernon, Bakersfield, CA, USA
| | - Stephen C Welter
- Department of Environmental Science, Policy, and Management, University of California, Berkeley, CA, USA
- Department of Biology, San Diego State University, San Diego, CA, USA
| | - Frances E Cave
- Department of Environmental Science, Policy, and Management, University of California, Berkeley, CA, USA
| | - Ashfaq A Sial
- Department of Environmental Science, Policy, and Management, University of California, Berkeley, CA, USA
- Department of Entomology, University of Georgia, Athens, GA, USA
| | - Elizabeth A Boyd
- Department of Environmental Science, Policy, and Management, University of California, Berkeley, CA, USA
- College of Agriculture, California State University, Chico, CA, USA
| |
Collapse
|
5
|
Pheromone-Mediated Mating Disruption as Management Option for Cydia spp. in Chestnut Orchard. INSECTS 2021; 12:insects12100905. [PMID: 34680674 PMCID: PMC8537153 DOI: 10.3390/insects12100905] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Revised: 10/01/2021] [Accepted: 10/01/2021] [Indexed: 11/17/2022]
Abstract
(1) Background: Pheromone-based devices are successfully used to control insect pests in agriculture. (2) Methods: Investigations were conducted to evaluate the effectiveness of mating disruption (MD) to control the chestnut tortrix moths, Cydia fagiglandana and Cydia splendana. Surveys were performed in northern Italy in 2019-2020. MD was carried out using the pheromone dispenser Ecodian® CT. The effectiveness of MD was assessed by recording male adult catches in pheromone-baited sticky traps and larvae in chestnut fruits, comparing MD and control plots. (3) Results: The total number of trapped males was significantly lower in MD plots than in control ones, for all sites and years. Trap catch suppression in MD plots averaged 89.5% and 93.8% for C. fagiglandana and 57.4% and 81% for C. splendana in 2019 and 2020, respectively. The larval infestation rate in fruits did not vary between plots except for one site where a reduction of about 71% in the MD plot was recorded in 2019. (4) Conclusions: Low catches in MD plots turned out to be a good measure of the effectiveness of communication disruption, but no satisfactory data have been obtained regarding fruit infestation, highlighting how the reduction of male catches cannot always be considered as a reliable indicator of successful control. Specific investigations about background population density, dispersal and mating/oviposition behavior are thus essential for a viable management strategy.
Collapse
|
6
|
Benelli G, Lucchi A. From Insect Pheromones to Mating Disruption: Theory and Practice. INSECTS 2021; 12:insects12080698. [PMID: 34442264 PMCID: PMC8396454 DOI: 10.3390/insects12080698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Accepted: 07/29/2021] [Indexed: 11/16/2022]
Abstract
Insects perceive and integrate a hierarchy of visual, chemical and tactile cues for feeding and reproductive purposes, as well as for predator and parasitoid avoidance [...].
Collapse
|