The clerid beetle,Thanasimus formicarius, is attracted to the pheromone of the ambrosia beetle,Trypodendron lineatum

1988 ◽  
Vol 44 (6) ◽  
pp. 536-537 ◽  
Author(s):  
B. Å. Tømmerås
Keyword(s):  
Ambrosia Beetle ◽  
Trypodendron Lineatum ◽  
Thanasimus Formicarius

LINEATIN ENANTIOMER PREFERENCE, FLIGHT PERIODS, AND EFFECT OF PHEROMONE CONCENTRATION AND TRAP LENGTH ON THREE SYMPATRIC SPECIES OF TRYPODENDRON (COLEOPTERA: SCOLYTIDAE)

2000 ◽  
Vol 132 (6) ◽  
pp. 877-887 ◽  
Author(s):  
B.S. Lindgren ◽  
S.E.R. Hoover ◽  
A.M. MacIsaac ◽  
C.I. Keeling ◽  
K.N. Slessor
Keyword(s):  
Sex Ratio ◽  
Reproductive Isolation ◽  
Release Rate ◽  
Sympatric Species ◽  
Ambrosia Beetle ◽  
Flight Period ◽  
Trypodendron Lineatum ◽  
Temporal Separation ◽  
Baited Traps ◽  
Pheromone Concentration

AbstractThe effects of lineatin enantiomer ratios, lineatin release rate, and trap length on catches and the flight periods of three sympatric species of Trypodendron Stephens were investigated in field bioassays using multiple-funnel traps. The ambrosia beetle, Trypodendron betulae Swaine, was caught in similar numbers in baited traps and blank control traps, showing that this species does not respond to lineatin. Our results confirmed that Trypodendron lineatum (Olivier) is attracted only to (+)-lineatin. Trypodendron rufitarsus (Kirby) and Trypodendron retusum (LeConte) were shown to utilize lineatin and like T. lineatum were caught only when (+)-lineatin was present. These results indicate that lineatin does not govern reproductive isolation among these three species. There was no effect by (+)-lineatin release rate within the range tested. The flight of T. rufitarsus commenced earlier and ceased before the peak of the T. lineatum flight, suggesting that temporal separation may be an important component of reproductive isolation between these two species. The flight period of T. retusum was similar to that of T. lineatum. Host odours may aid in reproductive isolation of these two species. Enantiomer blend did not significantly affect sex ratio in any species; however, sex ratio differed among species, indicating that different species responded differently to the traps or that natural sex ratios differ. Catches of T. rufitarsus and T. retusum increased with trap length when pheromone release per trap was held constant and when release was held constant relative to trap length. Trap length and release rate did not affect sex ratio.

Flight and Attack of the Ambrosia Beetle, Trypodendron lineatum (Oliv.) in Relation to Felling Date of Logs

1965 ◽  
Vol 97 (1) ◽  
pp. 42-57 ◽  
Author(s):  
E. D. A. Dyer ◽  
J. A. Chapman
Keyword(s):  
Douglas Fir ◽  
Ambrosia Beetle ◽  
Considerable Variability ◽  
Trypodendron Lineatum ◽  
Brood Rearing

AbstractLog preference of the ambrosia beetle, Trypodendron lineatum (Oliv.) (Coleoptera: Scolytidae), was studied by flight traps, attack density counts, and forced attacks, on 200 Douglas fir felled over a ten-month period. During heavy spring flights in late May, the beetles attacked logs from the August through January fellings, but not those cut February through May. At the end of the first brood-rearing period, parts of logs protected by plastic sheeting from earlier flights were attacked in this same pattern. Beetles confined on logs at different times attacked in essentially the same way as free beetles. It is concluded that felling date greatly influences subsequent attack. However, there was considerable variability in attack within groups of trees cut the same dates. Furthermore, attack on very short (1- and 3-foot) sections from the February fellings, when the corresponding logs were unattractive, showed that a factor other than time of felling also influenced log attractiveness. Some information was secured on flight and attack of other scolytid beetles in relation to felling date of logs.

ETHANOL AS THE PRIMARY ATTRACTANT FOR THE AMBROSIA BEETLE TRYPODENDRON LINEATUM (COLEOPTERA: SCOLYTIDAE)

1970 ◽  
Vol 102 (8) ◽  
pp. 985-995 ◽  
Author(s):  
Henry A. Moeck
Keyword(s):  
Anaerobic Treatment ◽  
Ambrosia Beetle ◽  
Repellent Effect ◽  
Trypodendron Lineatum ◽  
Low Concentration ◽  
Laboratory Bioassays

AbstractMethanol, acetaldehyde, and ethanol have been identified in extracts of attractive wood and bark. The attractancy induced by anaerobic treatment in both sapwood and phloem of conifers and broadleaf trees was characterized by ethanol as the most concentrated component. In laboratory bioassays, ethanol was attractive at low concentration to both sexes of Trypodendron lineatum (Olivier). Methanol and acetaldehyde, at the concentrations found, apparently play no role in attraction. Monoterpenes had a repellent effect on T. lineatum.

The aligning effect of light flicker on phototaxis of the ambrosia beetle Trypodendron lineatum (Olivier)

1968 ◽  
Vol 46 (3) ◽  
pp. 602-603 ◽  
Author(s):  
K. Graham ◽  
Isabelle A. Moeck
Keyword(s):  
Light Intensity ◽  
Ambrosia Beetle ◽  
Trypodendron Lineatum ◽  
Chemical Attractants ◽  
Light Flicker ◽  
Effect Of Light

A light which was flickered at approximately 5 cycles per second provoked a more direct guided response in the ambrosia beetle Trypodendron lineatum (Olivier) than did a steady source of the same intensity. Among the principal implications are those which concern the use of the beetles in bioassay of chemical attractants in which light is used as an opposing stimulus. The light intensity should be at least stabilized, and preferably flickered at an appropriate frequency.

AN EVALUATION OF THREE TRAPS AND TWO LURES FOR THE AMBROSIA BEETLE TRYPODENDRON LINEATUM (OLIV.) (COLEOPTERA: SCOLYTIDAE) IN CANADA, NORWAY, AND WEST GERMANY

1987 ◽  
Vol 119 (3) ◽  
pp. 273-280 ◽  
Author(s):  
J.A. McLean ◽  
A. Bakke ◽  
H. Niemeyer
Keyword(s):  
British Columbia ◽  
West Germany ◽  
Ambrosia Beetle ◽  
Trypodendron Lineatum ◽  
Baited Traps

AbstractMultiple funnel, Schlitzfalle, and drainpipe traps baited with Linoprax® or Biolure® semiochemical baiting systems for the ambrosia beetle Trypodendron lineatum (Oliv.) were evaluated in similar experiments in British Columbia, West Germany, and Norway. In British Columbia, the Biolure-baited traps caught more T. lineatum of both sexes than did Linoprax-baited traps. The Linoprax-baited traps caught more male T. lineatum in West Germany and Norway but fewer females than the Biolure system. Low percentages of female T. lineatum were often recorded at drainpipe traps.

A FURTHER EVALUATION OF THE INTERACTIONS BETWEEN THE PHEROMONES AND TWO HOST KAIROMONES OF THE AMBROSIA BEETLES TRYPODENDRON LINEATUM AND GNATHOTRICHUS SULCATUS (COLEOPTERA: SCOLYTIDAE)

1983 ◽  
Vol 115 (1) ◽  
pp. 1-5 ◽  
Author(s):  
T. L. Shore ◽  
J. A. McLean
Keyword(s):  
Field Experiment ◽  
Latin Square ◽  
Ambrosia Beetle ◽  
Mass Trapping ◽  
Beetle Species ◽  
Trypodendron Lineatum ◽  
Ambrosia Beetles ◽  
Treatment Site ◽  
Set Up ◽  
Main Effects

AbstractA Latin square design field experiment using treatment, site, and occasion as main effects was set up in spring 1981 to assess the responses of Trypodendron lineatum (Olivier) and Gnathotrichus sulcatus (LeConte) to traps baited with the pheromones lineatin and sulcatol alone and in combination with each other and with ethanol plus α-pinene. Addition of sulcatol to either lineatin or lineatin plus ethanol plus α-pinene resulted in significantly reduced catches of T. lineatum. Addition of ethanol plus α-pinene to sulcatol or lineatin resulted in significantly greater catches of both sexes of G. sulcatus and T. lineatum. These results suggest that separate traps be set out for each species in mass trapping suppression programs in timber processing areas and that ethanol and α-pinene be included with the pheromone to maximize catches of both of these ambrosia beetle species.

scholarly journals Occurrence of Gnathotrichus Materiarius (Fitch, 1858) (Coleoptera, Curculionidae, Scolytinae) in South-Western Poland

2018 ◽  
Vol 60 (3) ◽  
pp. 154-160 ◽  
Author(s):  
Andrzej Mazur ◽  
Radosław Witkowski ◽  
Jarosław Góral ◽  
Grzegorz Rogowski
Keyword(s):  
Invasive Species ◽  
North America ◽  
National Parks ◽  
Ambrosia Beetle ◽  
Managed Forests ◽  
Trypodendron Lineatum ◽  
Baited Traps ◽  
Ips Duplicatus ◽  
Western Border ◽  
Distinguishing Features

Abstract Gnathotrichus materiarius is listed as an alien ambrosia beetle in European fauna. This is an invasive species from North America, which was found in Europe (France) in the 1930s. In Poland, it was recorded in 2015. Already in 2017 numerous infestations of G. materiarius on lying Pinus sylvestris wood were obsereved. G. materairius is a xylomycophagous species and wood damage to its feeding is similar to that caused by striped ambrosia beetle Trypodendron lineatum. The paper presents sites of G. materairius occurrence found in 2016 and 2017. These include 15 sites located in managed forests (5 forest districts) as well as in 2 national parks situated along south-western border of Poland. G. materairius beetles were found in pheromone-baited traps used to monitor Ips duplicatus and I. amitinus or collected from infested Scots pine wood. The paper presents the description and characteristics of wood damage due to G. materiarius as well as its distinguishing features.

FIELD TESTS OF ISOMERS OF LINEATIN, THE AGGREGATION PHEROMONE OF TRYPODENDRON LINEATUM (COLEOPTERA: SCOLYTIDAE)

1980 ◽  
Vol 112 (1) ◽  
pp. 107-109 ◽  
Author(s):  
J. H. Borden ◽  
A. C. Oehlschlager ◽  
K. N. Slessor ◽  
L. Chong ◽  
H. D. Pierce
Keyword(s):  
Biological Activity ◽  
Aggregation Pheromone ◽  
Field Tests ◽  
The Other ◽  
Ambrosia Beetle ◽  
Enantiomeric Composition ◽  
Structural Isomer ◽  
Trypodendron Lineatum

The aggregation pheromone of the ambrosia beetle, Trypodendron lineatum (Olivier), was isolated by MacConnell et al. (1977), identified as one of two isomeric, tricyclic acetals, and given the trivial name, lineatin. One of the isomers, 3,3,7-trimethyl-2,9-dioxatricyclo [3.3.1.0 4,7] nonane (4,6,6-lineatin), was synthesized in µg quantities by three different syntheses, assessed to be structurally identical to the isolated pheromone, and demonstrated to be highly attractive in field tests (Borden et al. 1979; Vité and Bakke 1979). The other structural isomer, 3,3,7- trimethyl-2,9-dioxatricyclo [4.2.1.0 4,7] nonane (4,5,6-lineatin), was not tested for biological activity. The enantiomeric composition of natural lineatin was not determined by MacConnell et al. (1977).

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