Secondary attraction inGnathotrichus retusus and cross-attraction ofG. sulcatus (Coleoptera: Scolytidae)

1979 ◽  
Vol 5 (1) ◽  
pp. 79-88 ◽  
Author(s):  
J. H. Borden ◽  
J. A. McLean
Keyword(s):  
Cross Attraction ◽  
Secondary Attraction

THE EFFECT OF MALE TRYPODENDRON LINEATUM (COLEOPTERA: SCOLYTIDAE) ON THE RESPONSE OF FIELD POPULATIONS TO SECONDARY ATTRACTION

1973 ◽  
Vol 105 (4) ◽  
pp. 583-590 ◽  
Author(s):  
W. W. Nijholt
Keyword(s):  
Volatile Substance ◽  
Trypodendron Lineatum ◽  
Ambrosia Beetles ◽  
Field Response ◽  
Secondary Attraction

AbstractThe strong attractiveness of logs infested with female ambrosia beetles, Trypodendron lineatum (Oliv.), to the flying population was sharply reduced after the addition of males. The field response of T. lineatum was greatly reduced when air from logs infested with attractive females was mixed with air passing over logs infested with both sexes. The findings suggest that females keep producing the attracting principle in the presence of males. Males appear to reduce secondary attraction by producing a volatile substance(s) which may be anti-aggregating or repellent in its effect.

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.

SEMIOCHEMICAL-BASED COMMUNICATION IN INTERSPECIFIC INTERACTIONS BETWEEN IPS PINI (SAY) AND PITYOGENES KNECHTELI (SWAINE) (COLEOPTERA: SCOLYTIDAE) IN LODGEPOLE PINE

1994 ◽  
Vol 126 (2) ◽  
pp. 269-276 ◽  
Author(s):  
Therese M. Poland ◽  
John H. Borden
Keyword(s):  
Mountain Pine Beetle ◽  
Lodgepole Pine ◽  
Interspecific Interactions ◽  
Ips Pini ◽  
The Other ◽  
Competitive Displacement ◽  
Pine Engraver ◽  
Pine Beetle ◽  
Males And Females ◽  
Cross Attraction

AbstractThe pine engraver, Ips pini Say, and Pityogenes knechteli Swaine often co-exist in lodgepole pine, Pinus contoita var. latifolia Engelmann. We tested the hypotheses that P. knechteli produces an attractive pheromone and that the attraction of P. knechteli and I. pint to conspecifics is inhibited by the presence of the other species. Pityogenes knechteli males and females were attracted to bolts infested with conspecific males and to bolts infested with I. pini males; however, there was no significant cross-attraction of I. pini males or females to bolts infested with P. knechteli males. Attraction of P. knechteli and I. pint males and females to bolts infested with conspecific males was not inhibited in the presence of bolts infested with males of the other bark beetle species. Pityogenes knechteli has no potential for competitive displacement of I. pini but may enhance the adverse effect of I. pini on the mountain pine beetle, Dendroctonus ponderosae Hopkins.

scholarly journals Cross-Attraction between an Exotic and a Native Pine Bark Beetle: A Novel Invasion Mechanism?

PLoS ONE ◽  
2007 ◽  
Vol 2 (12) ◽  
pp. e1302 ◽  
Author(s):  
Min Lu ◽  
Daniel R. Miller ◽  
Jiang-Hua Sun
Keyword(s):  
Bark Beetle ◽  
Pine Bark ◽  
Invasion Mechanism ◽  
Cross Attraction

Taxonomic status of Dryocoetes autographus Ratz. and D. hectographus Reitt. (Coleoptera: Scolytidae)

1979 ◽  
Vol 10 (3) ◽  
pp. 219-228 ◽  
Author(s):  
Arne Nilssen
Keyword(s):  
Protein Pattern ◽  
Taxonomic Status ◽  
Electrophoretic Analysis ◽  
Hybridization Experiment ◽  
Two Dimensions ◽  
Aggregation Pheromones ◽  
Species Status ◽  
Cold Adapted ◽  
Cross Attraction ◽  
F1 Generation

AbstractThe species status of D. autographus and D. hectographus is investigated by means of morphological and biosystematic methods. A hybridization experiment resulted in progeny, but the F1 generation appeared to be infertile. The size of the punctures on the elytral declivity and two dimensions of the endophallic portion of the penis were measured on specimens from the two forms and the hybrids. The declivital punctures show great variation with overlap. The shape of the penis in the two forms is distinctive and is therefore an excellent diagnostic character. The hybrids occupy intermediate positions to a great extent. D. hectographus is significantly longer than D. autographus. Olfactometer experiments showed that male Dryocoetes produce aggregation pheromones, and there was some cross-attraction between the two forms. Measurements of the supercooling points showed that significantly more D. hectographus were cold adapted. Electrophoretic analysis of both forms taken from the same breeding stock revealed a conspicuous and constant difference in the protein pattern, indicating that they are genetically distinct. It is concluded that the two species should still be considered as distinct.

Species-specific close-range sexual communication systems prevent cross-attraction in three species of Glyptapanteles parasitic wasps (Hymenoptera: Braconidae)

2006 ◽  
Vol 39 (2) ◽  
pp. 225-231 ◽  
Author(s):  
Adela Danci ◽  
Paul W. Schaefer ◽  
Axel Schopf ◽  
Gerhard Gries
Keyword(s):  
Communication Systems ◽  
Sexual Communication ◽  
Parasitic Wasps ◽  
Close Range ◽  
Species Specific ◽  
Cross Attraction

Pollinator specificity, cryptic species and geographical patterns in pollinator responses to sexually deceptive orchids in the genus Chiloglottis: the Chiloglottis gunnii complex

2009 ◽  
Vol 57 (1) ◽  
pp. 37 ◽  
Author(s):  
Colin C. Bower ◽  
Graham R. Brown
Keyword(s):  
New England ◽  
Wasp Species ◽  
Geographical Patterns ◽  
South Wales ◽  
Biogeographical Regions ◽  
Cryptic Taxa ◽  
Sexually Deceptive Orchids ◽  
Thynnine Wasp ◽  
Choice Testing ◽  
Cross Attraction

Australian sexually deceptive orchids are typically highly pollinator specific, each species having a single unique hymenopteran pollinator species. Pollinator specificity in six of the nine described species in the Chiloglottis gunnii Lindl. complex was investigated by using field pollinator-choice tests, with Chiloglottis taxa translocated within and among biogeographical regions. Specific pollinators revealed the existence of five undescribed cryptic taxa in the C. gunnii complex, three within C. pluricallata D.L.Jones and two within C. valida D.L.Jones, in addition to the six described species. Of the 11 Chiloglottis taxa, 10 had a single thynnine-wasp pollinator throughout their sometimes large distributions, whereas one, C. valida, had a second pollinator in parts of its distribution. Eleven pollinators belonged to the genus Neozeleboria and one to Eirone. Pollinator-choice testing showed that cross-attraction of pollinators occurs between three geographically isolated Chiloglottis taxa on the New South Wales (NSW) New England Tableland and taxa in the South Eastern Highlands of NSW and Victoria. The data suggested there is sharing of chemical attractants and supported the recognition of at least five odour types within Chiloglottis, each encompassing one to three orchid taxa and their pollinators. The following two broad generalisations are made: (1) there is no cross-attraction of pollinators among sympatric Chiloglottis species, i.e. sympatric orchid taxa do not share attractant odours; and (2) all Chiloglottis species have different specific pollinators, although they may share attractant odours allopatrically. Some 28 thynnine-wasp species were attracted as minor non-pollinating responders to Chiloglottis taxa; five of these were pollinators of other Chiloglottis species. These wasps were much more taxonomically diverse than the pollinators, belonging to six genera, and suggest that some orchid-odour components are widely shared within the sex pheromones of the Thynninae.

Synergism between Enantiomers Creates Species-Specific Pheromone Blends and Minimizes Cross-Attraction for Two Species of Cerambycid Beetles

2016 ◽  
Vol 42 (11) ◽  
pp. 1181-1192 ◽  
Author(s):  
Linnea R. Meier ◽  
Yunfan Zou ◽  
Jocelyn G. Millar ◽  
Judith A. Mongold-Diers ◽  
Lawrence M. Hanks
Keyword(s):  
Pheromone Blends ◽  
Cerambycid Beetles ◽  
Species Specific ◽  
Cross Attraction

Secondary attraction and field activity of beetle-produced volatiles inDendroctonus terebrans

1989 ◽  
Vol 15 (5) ◽  
pp. 1513-1533 ◽  
Author(s):  
Thomas W. Phillips ◽  
James L. Nation ◽  
Robert C. Wilkinson ◽  
John L. Foltz
Keyword(s):  
Field Activity ◽  
Secondary Attraction
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