The Bark Beetle Complex Associated with Lodgepole Pine Slash in Alberta: Part III—Notes on the Biologies of Several Predators with Special Reference to Enoclerus sphegeus Fab. (Coleoptera: Cleridae) and Two Species of Mites

1957 ◽  
Vol 89 (3) ◽  
pp. 111-120 ◽  
Author(s):  
R. W. Reid
Keyword(s):  
Special Reference ◽  
Bark Beetle ◽  
Lodgepole Pine ◽  
Ips Pini ◽  
Egg Predator ◽  
Ips Perroti ◽  
Enoclerus Sphegeus

The most important predators found with broods of Ips pini (Say) and Ips perroti Sw. belong to the orders Coleoptera, Diptera, Hemiptera, and Acarina.Among the Coleoptera, Enoclerus sphegeus Fab. was the most aggressive and responsible for the greatest predation. The small clerid, Thanasimus undulatus Say, was present in the area but rarely encountered. Dipterous predators included Loachea corticis Taylor, Oscinella sp. nr. magnipalpus Beck. and Medeterus modestus Van Duzee. A hemipterous egg predator, Anthocoris musculus Fall. was found occasionally within the main Ips galleries.

The Bark Beetle Complex Associated with Lodgepole Pine Slash in Alberta: Part II—Notes on the Biologies of Several Hymenopterous Parasites

1957 ◽  
Vol 89 (1) ◽  
pp. 5-8 ◽  
Author(s):  
R. W. Reid
Keyword(s):  
Bark Beetle ◽  
Lodgepole Pine ◽  
Ips Pini ◽  
Additional Information ◽  
Ips Perroti

Representatives of the families Braconidae and Pteromalidae were present in association with broods of Ips pini Say and Ips perroti Sw. The identifications and information on distribution and hosts were kindly supplied by O. Peck and W. R. M. Mason of the Systematic Entomology Unit in Ottawa. Additional information on hosts and distribution were obtained from Hymenoptera of America by Muesebeck, Krombein, Towns, et al. (1951).

Responses of Ips pini (Say), Pityogenes knechteli Swaine and Associated Beetles (Coleoptera) to Host Monoterpenes in Stands of Lodgepole Pine

2003 ◽  
Vol 38 (4) ◽  
pp. 602-611 ◽  
Author(s):  
Daniel R. Miller ◽  
John H. Borden
Keyword(s):  
Bark Beetle ◽  
Bark Beetles ◽  
Mountain Pine Beetle ◽  
Lodgepole Pine ◽  
Behavioral Responses ◽  
Ips Pini ◽  
Host Volatiles ◽  
Pine Engraver ◽  
Pine Beetle

We conducted seven experiments in stands of mature lodgepole pine in southern British Columbia to elucidate the role of host volatiles in the semiochemical ecology of the pine engraver, Ips pini (Say) (Coleoptera: Scolytidae), with particular reference to the behavioral responses of predators and competing species of bark beetles. Our results demonstrated that the attraction of Ips pini and the bark beetle predators Lasconotus complex LeConte (Colydiidae), Thanasimus undatulus (Say) (Cleridae) and a Corticeus sp. (Tenebrionidae) were increased by 3-carene. In contrast, attraction of the bark beetle Pityogenes knechteli Swaine (Scolytidae) to ipsdienol was interrupted by 3-carene and α-pinene. Attraction of L. complex to ipsdienol was increased by γ-terpinene, a compound attractive to the mountain pine beetle, Dendroctonus ponderosae Hopkins (Scolytidae). Terpinolene interrupted the attraction of I. pini to ipsdienol.

E-MYRCENOL: A NEW PHEROMONE FOR THE PINE ENGRAVER, IPS PINI (SAY) (COLEOPTERA: SCOLYTIDAE)

1990 ◽  
Vol 122 (3) ◽  
pp. 401-406 ◽  
Author(s):  
D.R. Miller ◽  
G. Gries ◽  
J.H. Borden
Keyword(s):  
Sex Ratio ◽  
Pest Management ◽  
Lodgepole Pine ◽  
Ips Pini ◽  
Ethanol Solution ◽  
Forest Pest ◽  
Pine Engraver ◽  
Forest Pest Management ◽  
Dose Dependent Fashion ◽  
Dose Dependent

AbstractE-Myrcenol reduced catches of the pine engraver, Ips pini (Say), to ipsdienol-baited, multiple-funnel traps in a dose-dependent fashion. The sex ratio was unaffected by E-myrcenol treatments. Lures containing E-myrcenol in ethanol solution failed to protect freshly cut logs of lodgepole pine from attack by I. pini. Rather, I. pini preferentially attacked logs treated with devices releasing E-myrcenol and ethanol, over nontreated, control logs. Our results demonstrate that E-myrcenol is a new pheromone for I. pini, and emphasize the importance of understanding basic pheromone biology before utilisation of a semiochemical in forest pest management.

scholarly journals Changes in a Primary Resistance Parameter of Lodgepole Pine to Bark Beetle Attack One Year Following Fertilization and Thinning

Forests ◽  
2015 ◽  
Vol 6 (12) ◽  
pp. 280-292 ◽  
Author(s):  
Stephen Cook ◽  
Amy Carroll ◽  
Mark Kimsey ◽  
Terry Shaw
Keyword(s):  
Bark Beetle ◽  
Lodgepole Pine ◽  
Primary Resistance ◽  
Resistance Parameter ◽  
One Year

scholarly journals Riparian zones attenuate nitrogen loss following bark beetle-induced lodgepole pine mortality

2016 ◽  
Vol 121 (3) ◽  
pp. 933-948 ◽  
Author(s):  
Joel A. Biederman ◽  
Thomas Meixner ◽  
Adrian A. Harpold ◽  
David E. Reed ◽  
Ethan D. Gutmann ◽  
...  
Keyword(s):  
Bark Beetle ◽  
Lodgepole Pine ◽  
Nitrogen Loss ◽  
Riparian Zones

Entomocorticium dendroctoni gen. et sp. nov. (Basidiomycotina), a possible nutritional symbiote of the mountain pine beetle in lodgepole pine in British Columbia

1987 ◽  
Vol 65 (1) ◽  
pp. 95-102 ◽  
Author(s):  
H. S. Whitney ◽  
R. J. Bandoni ◽  
F. Oberwinkler
Keyword(s):  
British Columbia ◽  
Bark Beetle ◽  
Pinus Contorta ◽  
Mountain Pine Beetle ◽  
Lodgepole Pine ◽  
Pine Bark ◽  
Mountain Pine ◽  
Pine Beetle ◽  
Blue Stain Fungi ◽  
Blue Stain

A new basidiomycete, Entomocorticium dendroctoni Whitn., Band. & Oberw., gen. et sp. nov., is described and illustrated. This cryptic fungus intermingles with blue stain fungi and produces abundant essentially sessile basidiospores in the galleries and pupal chambers of the mountain pine bark beetle (Dendroctonus ponderosae Hopkins Coleoptera: Scolytidae) in lodgepole pine (Pinus contorta Dougl. var. latifolia Engelm.). The insect apparently disseminates the fungus. Experimentally, young partially insectary reared adult beetles fed E. dendroctoni produced 19% more eggs than beetles fed the blue stain fungi.

ATTACK BY BARK BEETLES (COLEOPTERA: SCOLYTIDAE) FOLLOWING SPACING OF MATURE LODGEPOLE PINE (PINACEAE) STANDS

1999 ◽  
Vol 131 (5) ◽  
pp. 671-685 ◽  
Author(s):  
L. Safranyik ◽  
T.L. Shore ◽  
D.A. Linton
Keyword(s):  
Bark Beetle ◽  
Bark Beetles ◽  
Dominant Species ◽  
Management Practices ◽  
Lodgepole Pine ◽  
Species Accumulation Curves ◽  
The Third ◽  
Significant Difference ◽  
Accumulation Curves ◽  
Stick Model

AbstractVariation in bark beetle attack following spacing of mature lodgepole pine stands in the East Kootenays of British Columbia was analyzed in relation to stand location (site), spacing treatment, and harvesting injury. Observations were made on three sites, each having three treatments: 4 × 4 m spacing, 5 × 5 m spacing, and untreated control. There was no statistically significant difference in the numbers of attacked trees among sites or treatments. However, in the spaced plots 94.3% of the attacked trees sustained harvesting injury or were located adjacent to skid trails. Dendroctonus valens LeConte was the dominant species attacking trees on the two drier sites, and Dendroctonus murrayanae Hopkins was the dominant species on the third site. There was no statistically significant variation in the percentage of attacked stumps among sites or spacing treatments. On average, 80.7% of the stumps were attacked; attacked stumps had larger diameters than unattacked stumps. Thirteen species of bark beetles were found attacking stumps. Hylurgops porosus LeConte was the most numerous species at all three sites. Based on the fit of the Michaelis–Menten equations to species accumulation curves, an estimated 76–90% of the number of species attacking stumps at the three sites were observed in bark samples. Margalef’s index of diversity for the two drier sites (Cranbrook = 1.15, Parson = 1.13) was nearly identical and higher than at the moist site (Elkford = 0.89). Pairs of sites had five to six species in common, and the Sorensen coefficient of similarity ranged from 0.52 to 0.71, indicating moderate similarity in species composition. The abundance versus species rank relationship was fitted by three models: the MacArthur broken stick model, the geometric series, and the Zeta distribution. The latter gave good fit to data from two sites, but none of the fitted models gave satisfactory fit to data from the third site, mainly because of the high abundance of the second ranked species (Orthotomicus caelatus Eichhoff). Our results indicated that stand characteristics affected species assemblages and abundances of bark beetle species that attacked stumps. Management practices that minimize injury to trees during the spacing operations are emphasized to reduce attack by bark beetles.

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.

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