scholarly journals Identification of Pheromone Components of Plagionotus detritus (Coleoptera: Cerambycidae), and Attraction of Conspecifics, Competitors, and Natural Enemies to the Pheromone Blend

Insects ◽  
2021 ◽  
Vol 12 (10) ◽  
pp. 899
Author(s):  
Zoltán Imrei ◽  
Michael J. Domingue ◽  
Zsófia Lohonyai ◽  
Jardel A. Moreira ◽  
Éva Bálintné Csonka ◽  
...  
Keyword(s):  
Life History ◽  
Sex Pheromone ◽  
Plant Protection ◽  
Interspecific Communication ◽  
Headspace Volatiles ◽  
Synthetic Compounds ◽  
Longhorn Beetle ◽  
Two Component ◽  
Pheromone Components ◽  
Pheromone Blend

(1) Background: The principal aim of our work was to identify pheromone components for Plagionotus detritus (L.) (Coleoptera: Cerambycidae), which could be exploited for developing a pheromone-based monitoring system for the complementary purposes of plant protection in areas where it might become a pest, and natural conservation in areas where it is rare or endangered. (2) Methods: Collection and analysis of headspace volatiles were carried out with field-collected beetles. Bioactive volatile compounds identified [(R)-3-hydroxyhexan-2-one and (S)-2-hydroxyoctan-3-one] from extracts of males were purchased [(±)-3-hydroxyhexan-2-one], and synthesized [(S)-2-hydroxyoctan-3-one] and field-tested. Electroantennogram assays showed that antennae of the predatory beetle Clerus mutillarius F. (Coleoptera: Cleridae) also responded to the synthetic compounds. (3) Results: A two-component aggregation-sex pheromone consisting of (R)-3-hydroxyhexan-2-one and (S)-2-hydroxyoctan-3-one was identified for P. detritus. (±)-3-hydroxyhexan-2-one and (S)-2-hydroxyoctan-3-one attracted adults of P. detritus in field bioassays. Adults of the clerid C. mutillarius also were attracted to both compounds. The cerambycid Xylotrechus antilope Schönh was significantly attracted to traps baited with (S)-2-hydroxyoctan-3-one alone or the blend containing this compound. (4) Conclusions: Our data confirmed that 3-hydroxyhexan-2-one and 2-hydroxyoctan-3-one are male-produced pheromone components for P. detritus. These results show that both intraspecific and interspecific communication may play key roles in longhorn beetle life history and ecology, with closely and more distantly related species eavesdropping on each other’s signals.

Isolation, identification, synthesis, and bioefficacy of female Diacrisia obliqua (Arctiidae) sex pheromone blend. An Indian agricultural pest

2001 ◽  
Vol 73 (7) ◽  
pp. 1157-1162 ◽  
Author(s):  
J. S. Yadav ◽  
M. Y. Valli ◽  
A. R. Prasad
Keyword(s):  
Sex Pheromone ◽  
Female Sex Pheromone ◽  
Wittig Olefination ◽  
Pheromone Components ◽  
Diacrisia Obliqua ◽  
Seed Crops ◽  
Key Steps ◽  
Sex Pheromone Blend ◽  
Pheromone Blend ◽  
Oil Seed Crops

Diacrisia obliqua is a polyphagous pest especially on oil seed crops. Adult female sex pheromone blend consists of five pheromone components, which include (3Z,6Z)-cis-9,10-epoxyl,3,6-henicosatriene and (3Z,6Z)-cis-9,10-epoxy3,6-henicosadiene. Synthesis of these enantiomers was achieved through alkylative epoxide rearrangement and stereoselective Wittig olefination reactions as key steps. Bioefficacy experiments both at laboratory and minifield were very positive.

IDENTIFICATION OF SEX PHEROMONE COMPONENTS OF THE BLACK ARMY CUTWORM, ACTEBIA FENNICA (TAUSCHER) (LEPIDOPTERA: NOCTUIDAE), AND A SEX ATTRACTANT BLEND FOR ADULT MALES

1989 ◽  
Vol 121 (7) ◽  
pp. 557-563 ◽  
Author(s):  
D.L. Struble ◽  
J.R. Byers ◽  
R.F. Shepherd ◽  
T.G. Gray
Keyword(s):  
Sex Pheromone ◽  
Sex Attractant ◽  
Population Monitoring ◽  
Adult Males ◽  
Sex Pheromone Components ◽  
Two Component ◽  
Pheromone Components ◽  
Tetradecenyl Acetate ◽  
Lepidoptera Noctuidae ◽  
Synthetic Blend

AbstractThe sex pheromone components of the black army cutworm, Actebia fennica (Tauscher), were identified in abdomen-tip extracts from calling female moths. The primary pheromone component was (Z)-7-dodecenyl acetate. Although (Z)-11-tetradecenyl acetate was detectable only in trace quantities in the extracts, it was the major component in the best synthetic blend for attraction of male moths. The most effective synthetic blend was (Z)-7-dodecenyl acetate and (Z)-11-tetradecenyl acetate at a ratio of 1:20. No other component detected in the extracts increased trap capture of males when added to the two-component blend; however, (Z)-5-dodecenyl acetate, (Z)-7-dodecenol, and (Z)-9-tetradecenyl acetate reduced catches. This two-component blend will be useful for studying the habits of the adults and for population monitoring.

Evolution of resistance to mating disruption in the pink bollworm moth evidence and possible mechanism

2014 ◽  
Author(s):  
Ally R. Harari ◽  
Russell A. Jurenka ◽  
Ada Rafaeli ◽  
Victoria Soroker
Keyword(s):  
Sex Pheromone ◽  
Biosynthetic Pathway ◽  
Mating Disruption ◽  
Pink Bollworm ◽  
Wide Range ◽  
Pheromone Components ◽  
Evolution Of Resistance ◽  
Related Enzyme ◽  
Pink Bollworm Moth ◽  
Pheromone Blend

t The pink bollworm, Pectinophoragossypiellais a key pest of cotton world-wide. In Israel mating disruption sex pheromone is used in all cotton fields and recent repeated outbreaks of the pest populations has suggested a change in the population sex pheromone characteristics. The research goals were to (1) determine the change in pheromone characteristic of PBW females after long experience to Mating Disruption (MD), (2) to test the male’s antennae response (EAG) to pheromone characteristics of laboratory, naive females, and of field collected, MD experienced females, (3) to analyse the biosynthetic pathway for possible enzyme variations, (4) to determine the male behavioural response to the pheromone blend involved in the resistance to MD. The experiments revealed that (1) MD experienced females produced pheromone blend with higher ZZ ratio than lab reared (MD naive females) that typically produced ZZ:EE ratio of 1:1. (2) Male’s origin did not affect its response to pheromone characteristics of lab or field females. (3) A transcriptome study demonstrated many gene-encode enzymes in the biosynthetic pathway, but some of the transcripts were produced in differing levels in the MD resistant populations. (4) Male origin (field or lab) influenced males’ choice of mate with strong preference to females sharing the same origin. However, when MD was applied, males of both populations were more attracted to females originated form failed MD treated fields. We conclude that in MD failed fields a change in the population mean of the ratio of the pheromone components had occurred. Males in these fields had changed their search “image” accordingly while keeping the wide range of response to all pheromone characteristics. The change in the pheromone blend is due to different level of pheromone related enzyme production. 

Characterisation of Acetyl-CoA Thiolase: The First Enzyme in the Biosynthesis of Terpenic Sex Pheromone Components in the Labial Gland ofBombus terrestris

ChemBioChem ◽  
2015 ◽  
Vol 16 (7) ◽  
pp. 1047-1051 ◽  
Author(s):  
Jana Brabcová ◽  
Zuzana Demianová ◽  
Jiří Kindl ◽  
Iva Pichová ◽  
Irena Valterová ◽  
...  
Keyword(s):  
Sex Pheromone ◽  
Labial Gland ◽  
Acetyl Coa ◽  
Sex Pheromone Components ◽  
Pheromone Components
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