SEX PHEROMONE COMPONENTS OF ENARMONIA FORMOSANA (LEPIDOPTERA: TORTRICIDAE)

1999 ◽  
Vol 131 (1) ◽  
pp. 85-92 ◽  
Author(s):  
Crawford McNair ◽  
Gerhard Gries ◽  
Regine Gries
Keyword(s):  
Sex Pheromone ◽  
Field Experiments ◽  
Mass Trapping ◽  
Binary Blend ◽  
Heterospecific Male ◽  
Electroantennographic Detection ◽  
Cross Attraction ◽  
Pheromone Glands ◽  
Pheromone Blend ◽  
Enarmonia Formosana

Abstract(E)-9-Dodecenyl acetate (E9-12:OAc) and (Z)-9-dodecenyl acetate (Z9-12:OAc) are major components of the sex pheromone of the cherry bark tortrix (CBT), Enarmonia formosana (Scopoli), in British Columbia. The compounds were identified in extracts of female pheromone glands by coupled gas chromatographic – electroantennographic detection (GC–EAD) and coupled GC – mass spectrometry. In field experiments, traps baited with E9-12:OAc or Z9-12:OAc singly were unattractive to male CBT, but in combination at ratios of 50:50 or 40:60 captured numerous males. Increasing quantities of this two-component pheromone blend resulted in increasing captures of male CBT. This binary blend at a 10-mg dose caught more CBT males that did caged virgin CBT females. Eight other EAD-active acetates identified in extracts of pheromone glands failed to enhance attractiveness of the pheromone blend. These compounds may serve to reduce cross-attraction of heterospecific male moths or may play a role in courtship behaviour. Formulations of synthetic pheromone are being evaluated for management of the CBT using mass trapping or disorientation of male CBT moths.

SEX PHEROMONE COMPONENT OF THE WESTERN BLACKHEADED BUDWORM, ACLERIS GLOVERANA WALSINGHAM (LEPIDOPTERA: TORTRICIDAE)

1996 ◽  
Vol 128 (6) ◽  
pp. 1135-1142 ◽  
Author(s):  
T.G. Gray ◽  
R.F. Shepherd ◽  
G. Gries ◽  
R. Gries
Keyword(s):  
Mass Spectrometry ◽  
Sex Pheromone ◽  
Field Experiments ◽  
Pheromone Component ◽  
Pheromone Gland ◽  
Selected Ion Monitoring ◽  
Electroantennographic Detection ◽  
Trap Catches

Abstract(E)-11,13-Tetradecadienal (E11,13-14:Ald) is the major component of the sex pheromone of the western blackheaded budworm (WBB), Acleris gloverana Walsingham. The compound was identified in extracts of the female’s pheromone gland by coupled gas chromatographic - electroantennographic detection (GC-EAD) and coupled GC - mass spectrometry in selected ion monitoring mode. In field experiments, E11,13-14:Ald by itself was attractive, but addition of (Z)-11,13-tetradecadienal doubled trap catches of male WBB. (E)-11,13-Tetradecadienol or (E)-11,13-tetradecadienyl acetate in binary or ternary combination with E11,13-14:Ald did not enhance attractiveness of the bait. In comparative assessments of five different trap designs, Uni-traps appeared to be the most suitable for use in pheromone-based monitoring of populations of WBB.

SEX PHEROMONE BLEND OF THE PANDORA MOTH (LEPIDOPTERA: SATURNIIDAE), AN OUTBREAK PEST IN PINE FORESTS (PINACEAE)

2000 ◽  
Vol 132 (6) ◽  
pp. 775-787 ◽  
Author(s):  
J. Steven McElfresh ◽  
Xin Chen ◽  
Darrell W. Ross ◽  
Jocelyn G. Millar
Keyword(s):  
Sex Pheromone ◽  
Field Trials ◽  
Pine Forests ◽  
Western United States ◽  
Pheromone Gland ◽  
Apparent Effect ◽  
Hexadecyl Acetate ◽  
Sex Pheromone Blend ◽  
Pheromone Glands ◽  
Pheromone Blend

AbstractThe female-produced sex pheromone blend of the pandora moth, Coloradia pandora pandora Blake, a pest responsible for periodic defoliation of pine forests in the western United States, has been identified. The pheromone consisted of a mixture of E10,Z12-hexadecadienal, E10,Z12-hexadecadienyl acetate, and E10,E12-hexadecadienyl acetate. All three components were essential for optimal attraction. E10,Z12-Hexadecadienol, tentatively identified in trace amounts in pheromone gland extracts, elicited strong responses from male antennae in coupled gas chromatography – electroantennogram analyses but had no apparent effect as a pheromone component at physiologically relevant levels. Hexadecanal, octadecanal, and hexadecyl acetate also were identified in extracts of female pheromone glands but elicited no responses from male antennae, nor did they appear to be components of the attractant blend. In field trials, each trap baited with the optimized three-component blend of E10,Z12-hexadecadienal, E10,Z12-hexadecadienyl acetate, and E10,E12-hexadecadienyl acetate captured an average of more than 40 male moths per night.

Diel periodicity of sexual communication in Anarsia lineatella (Lepidoptera: Gelechiidae)

2006 ◽  
Vol 138 (3) ◽  
pp. 384-389 ◽  
Author(s):  
Kristine K. Schlamp ◽  
Kendra Brown ◽  
Regine Gries ◽  
Melanie Hart ◽  
Gerhard Gries ◽  
...  
Keyword(s):  
Sex Pheromone ◽  
Laboratory Experiments ◽  
Field Experiments ◽  
Sexual Communication ◽  
Diel Periodicity ◽  
Pheromone Production ◽  
Standard Time ◽  
Anarsia Lineatella ◽  
Synthetic Sex Pheromone ◽  
Pheromone Glands

AbstractThe sex pheromone of the peach twig borer, Anarsia lineatella (Zeller), was identified 30 years ago but the communication biology of this species has hardly been studied. In laboratory experiments, female moths kept at a photoperiod of 16L:8D (20 ± 2 °C, 70% ± 5% relative humidity) emitted pheromone before, during, and after sunrise (0400–0600 Pacific standard time), whereas pheromone was present in pheromone glands at similar quantities throughout the 24 h recording period. These data suggest that pheromone production and emission are not closely linked. In field experiments during July 2001 near Livingston, California (CA), and during June 2002 near Keremeos, British Columbia (BC), males were attracted to traps baited with synthetic sex pheromone (CA) or conspecific females (BC) only between 0300 and 0600 (Pacific standard time), suggesting overlap between periods of pheromone emission by females and attraction response by males. Groups of females in the presence of conspecific males, which were physically separated from females, emitted less sex pheromone than groups of females in the absence of males, suggesting that males communicate their presence to females and females change their behaviour in response.

scholarly journals Identification and field evaluation of the sex pheromone of a Brazilian population of Spodoptera cosmioides

2016 ◽  
Vol 51 (5) ◽  
pp. 545-554 ◽  
Author(s):  
Maria Carolina Blassioli-Moraes ◽  
Miguel Borges ◽  
Amanda Rodrigues Viana ◽  
Raúl Alberto Laumann ◽  
José Ednilson Miranda ◽  
...  
Keyword(s):  
Sex Pheromone ◽  
Wind Tunnel ◽  
Field Experiments ◽  
Field Evaluation ◽  
Wind Tunnel Experiments ◽  
Electrophysiological Responses ◽  
Cross Attraction ◽  
Lepidoptera Noctuidae ◽  
Control Trap

Abstract: The objective of this work was to identify the sex pheromone of Spodoptera cosmioides and to evaluate whether there is pheromone cross-attraction in Spodoptera sp. (Lepidoptera: Noctuidae). Spodoptera cosmioides gland extracts were analyzed by GC-FID and GC-MS. Wind tunnel and electrophysiology experiments were conducted to evaluate the role of gland compounds. In the field, different pheromone traps were tested: S. frugiperda commercial lure; (9Z)-9-tetradecenyl acetate (Z9-14:OAc) and (9Z,12E)-9,12-tetradecadienyl acetate (Z9,E12-14:OAc) trap; two females of S. cosmioides trap; and hexane control trap. Four acetates were identified in the S. cosmioides female gland extracts as Z9-14:OAc, Z9,E12-14:OAc, (11Z)-11-hexadecenyl acetate (Z11-16:OAc) and hexadecyl acetate (16:OAc), but only the first two acetates induced electrophysiological responses from S. cosmioides male antennae. In wind tunnel experiments, S. cosmioides and S. frugiperda males responded more strongly to conspecific blends; however, there was some cross-attraction, as 47% males of S. frugiperda and 25% males of S. cosmioides responded to heterospecific blends. In field experiments, S. frugiperda and S. cosmioides showed the same response pattern as observed in the wind tunnel bioassays. In summary, the sex pheromone components of S. cosmioides are Z9-14:OAc and Z9,E12-14OAc; they are important for conferring species specificity, and there is pheromone-mediated cross attraction between S. frugiperda and S. cosmioides.

Development of functionally competent cabbage looper moth sex pheromone glands

1991 ◽  
Vol 21 (6) ◽  
pp. 573-581 ◽  
Author(s):  
Juliet D. Tang ◽  
Walter A. Wolf ◽  
Wendell L. Roelofs ◽  
Douglas C. Knipple
Keyword(s):  
Sex Pheromone ◽  
Cabbage Looper ◽  
Cabbage Looper Moth ◽  
Pheromone Glands

The Potential for Genetic Manipulation of the Redbanded Leafroller Moth Sex Pheromone Blend

1986 ◽  
pp. 263-272 ◽  
Author(s):  
Wendell L. Roelofs ◽  
Jia-Wei Du ◽  
Charles Linn ◽  
Thomas J. Glover ◽  
Louis B. Bjostad
Keyword(s):  
Sex Pheromone ◽  
Genetic Manipulation ◽  
Redbanded Leafroller ◽  
Sex Pheromone Blend ◽  
Pheromone Blend

A plant volatile alters the perception of sex pheromone blend ratios in a moth

2020 ◽  
Vol 206 (4) ◽  
pp. 553-570 ◽  
Author(s):  
Antoine Hoffmann ◽  
Thomas Bourgeois ◽  
Alicia Munoz ◽  
Sylvia Anton ◽  
Jeremy Gevar ◽  
...  
Keyword(s):  
Sex Pheromone ◽  
Plant Volatile ◽  
Blend Ratios ◽  
Sex Pheromone Blend ◽  
Pheromone Blend

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.

scholarly journals Minor Components Play an Important Role in Interspecific Recognition of Insects: A Basis to Pheromone Based Electronic Monitoring Tools for Rice Pests

Insects ◽  
2018 ◽  
Vol 9 (4) ◽  
pp. 192 ◽  
Author(s):  
Qing-Hua Chen ◽  
Feng Zhu ◽  
Zhihua Tian ◽  
Wan-Min Zhang ◽  
Rong Guo ◽  
...  
Keyword(s):  
Sex Pheromone ◽  
Electronic Monitoring ◽  
Interspecific Interactions ◽  
Minor Component ◽  
Minor Components ◽  
Scirpophaga Incertulas ◽  
Rice Pests ◽  
Pheromone Trapping ◽  
Lepidopteran Species ◽  
Pheromone Blend

Several lepidopteran species share the same pheromone blend consisting of (Z)-11-hexadecenal (Z11-16:Ald) and (Z)-9-hexadecenal (Z9-16:Ald) at different ratios and active doses. In rice pest Chilo suppressalis, (Z)-11-hexadecenol, (Z11-16:OH) and octadecanal (18:Ald) were identified as minor components in the pheromone gland of female moths, and these components were previously not considered as part of the sex pheromone of C. suppressalis. Z11-16:Ald, Z9-16:Ald and (Z)-13-octadecenal (Z13-18:Ald) frequently trapped other lepidopteran species, such as rice pests Scirpophaga incertulas and Mythimna separate, corn and vegetable pests Helicoverpa armigera in the field, suggesting a lack of specificity in the pheromone blend. Our data showed that the minor component Z11-16:OH did not have a synergistic effect on the attractiveness of the blend to C. suppressalis; however, pheromone mixtures containing Z11-16:OH failed in trapping male H. armigera moths. We confirmed the identity and specificity of the C. suppressalis sex pheromone and demonstrated that Z11-16:OH plays a key role in the reproductive isolation of C. suppressalis, M. separata, and H. armigera moths, and a similar role of Z9-18:Ald in that of S. incertulas and C. suppressalis. This phenomenon could be more widely applicable to interspecific interactions in the pheromone communication between insects, which is crucial to developing the electronic automatic counting device for automatically monitoring the pest population by pheromone trapping based on its species specificity.

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