Sex pheromone cross-attraction among four species of pine tip moths,Rhyacionia species

1979 ◽  
Vol 5 (2) ◽  
pp. 205-210 ◽  
Author(s):  
C. W. Berisford ◽  
D. M. Harman ◽  
B. L. Freeman ◽  
R. C. Wilkinson ◽  
J. R. McGraw
Keyword(s):  
Sex Pheromone ◽  
Tip Moths ◽  
Cross Attraction

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.

BIOSYSTEMATICS OF THE GENUS EUXOA (LEPIDOPTERA: NOCTUIDAE) XV. SEX PHEROMONE CROSS ATTRACTANCY AMONG THE THREE CLOSELY RELATED SPECIES OF THE DECLARATA GROUP

1981 ◽  
Vol 113 (3) ◽  
pp. 235-243 ◽  
Author(s):  
J. R. Byers ◽  
E. W. Underhill ◽  
W. F. Steck ◽  
M. D. Chisholm ◽  
P. E. A. Teal
Keyword(s):  
Sex Pheromone ◽  
Courtship Behavior ◽  
Interspecific Mating ◽  
Mating Activity ◽  
Closely Related Species ◽  
Natural Photoperiod ◽  
Close Range ◽  
Cross Attraction ◽  
Lepidoptera Noctuidae ◽  
Photoperiod Manipulation

AbstractMale release-recapture experiments show that under natural photoperiod there is no cross attractancy between species of the sympatric pairs E. declarata and E. campestris or E. declarata and E. rockburnei, but that there is between the parapatric pair, E. campestris and E. rockburnei. When the calling periods of E. declarata and E. campestris females are synchronized by photoperiod manipulation there is cross attraction between these two species as well. However, in mating discrimination tests between E. declarata and E. campestris the normally strong bias against interspecific mating is only partially overcome by synchronizing mating activity rhythms. The residual tendency for conspecific mating is more likely due to imperfect synchronization of mating rhythms or differences in close range courtship behavior than to differences in attraction pheromone. Males of all three species are attracted to the same synthetic attractants. The results are consistent with the hypothesis that the attraction pheromones of the three species in the declarata group are very similar and are unlikely to play a major role in reproductive isolation, which is probably effected primarily by differences in circadian rhythms of mating activity.

Inhibition of Attraction and Cross-attraction by Interspecific Sex Pheromone Communication in Lepidoptera

Nature ◽  
1971 ◽  
Vol 234 (5329) ◽  
pp. 415-416 ◽  
Author(s):  
MILTON C. GANYARD ◽  
U. EUGENE BRADY
Keyword(s):  
Sex Pheromone ◽  
Pheromone Communication ◽  
Cross Attraction

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.

scholarly journals Field capture of Thyanta perditor with pheromone-baited traps

2011 ◽  
Vol 46 (2) ◽  
pp. 113-119 ◽  
Author(s):  
Raúl Alberto Laumann ◽  
Maria Carolina Blassioli Moraes ◽  
Ashot Khrimian ◽  
Miguel Borges
Keyword(s):  
Sex Pheromone ◽  
Population Monitoring ◽  
Geometric Isomer ◽  
Stink Bug ◽  
Transparent Plastic ◽  
Baited Traps ◽  
Rubber Septa ◽  
Synthetic Sex Pheromone ◽  
Male Sex ◽  
Cross Attraction

The objective of this work was to evaluate the field attractiveness of Thyanta perditor synthetic sex pheromone-baited traps, its attractivity to other stink bug species, and the response of T. perditor to a geometric isomer of the sex pheromone. Two-liter transparent plastic bottles traps were baited with rubber septa impregnated with the treatments: 1 mg of methyl-(2E,4Z,6Z)-decatrienoate [(2E,4Z,6Z)-10:COOMe], the male sex pheromone of T. perditor; 1 mg of (2E,4Z,6Z)-10:COOMe protected from sunlight in standard PVC plumbing pipe; 1 mg of its geometric isomer [(2E,4E,6Z)-10:COOMe]; and traps with rubber septa impregnated with hexane (control). The experiment was carried out in field during the soybean reproductive stages. Traps were monitored weekly, and the captures were compared to the population density estimated by the sampling cloth and visual inspection monitoring techniques. Traps baited with the sex pheromone, protected or not, were more effective in capturing T. perditor than traps baited with the isomer or the hexane. Thyanta perditor sex pheromone showed cross-attraction to other stink bug species, such as Euschistus heros, Edessa meditabunda, Piezodorus guildinii and Nezara viridula. Pheromone-baited traps can be used in population monitoring and to identify the relative composition of stink bug guilds.

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