In-Flight Responses of the Pales Weevil, Hylobius pales (Coleoptera: Curculionidae) to Monoterpene Constituents of Southern Pine Gum Turpentine

1987 ◽  
Vol 70 (1) ◽  
pp. 97 ◽  
Author(s):  
Blair D. Siegfried
Keyword(s):  
Southern Pine ◽  
Hylobius Pales

TRANS-VERBENOL, TURPENTINE, AND ETHANOL AS TRAP BAITS FOR THE BLACK TURPENTINE BEETLE, DENDROCTONUS TEREBRANS,1 AND OTHER FOREST COLEOPTERA IN NORTH FLORIDA2

1987 ◽  
Vol 22 (3) ◽  
pp. 201-209 ◽  
Author(s):  
C. W. Fatzinger ◽  
B. D. Siegfried ◽  
R. C. Wilkinson ◽  
J. L. Nation
Keyword(s):  
Fold Increase ◽  
Southern Pine ◽  
Male And Female ◽  
Dendroctonus Terebrans ◽  
Hylobius Pales ◽  
Trap Bait

Trans-verbenol, ethanol, and gum turpentine were evaluated alone and in combinations as trap baits for the black turpentine beetle (BTB), Dendroctonus terebrans (Olivier). Traps without turpentine generally caught fewer BTB, pales weevils, Hylobius pales (Herbst), pitch-eating weevils, Pachylobius picivorus (Germar); southern pine sawyers, Monochamus titillator (F.), and Carolina pine sawyers, M. carolinensis (Olivier). Trans-verbenol alone was ineffective as a trap bait, but sometimes increased catches of BTB 1.2 to 1.5 times when used in combination with turpentine or a mixture of turpentine and ethanol. The addition of ethanol to the turpentine bait sometimes doubled catches of BTB and increased captures of pales weevils 3.7 to 5.1 times. The overall effect of mixing ethanol with turpentine bait while releasing trans-verbenol from the same trap versus the use of turpentine alone was a 2.4-fold increase in the response of female BTB. Traps captured about equal numbers of male and female BTB, pales weevils, pitch-eating weevils, and southern pine sawyers, but captured 2.8 times more female than male Carolina pine sawyers.

Polysulfide-borohydride modification of southern pine alkaline pulping integrated with hydrothermal pre-extraction of hemicelluloses

TAPPI Journal ◽  
2011 ◽  
Vol 10 (7) ◽  
pp. 9-16
Author(s):  
SUNG-HOON YOON ◽  
HARRY CULLINAN ◽  
GOPAL A. KRISHNAGOPALAN
Keyword(s):  
Loblolly Pine ◽  
Sodium Borohydride ◽  
Kraft Pulping ◽  
Hot Water ◽  
Pulp Yield ◽  
Paper Strength ◽  
Southern Pine ◽  
Two Stage ◽  
Simultaneous Treatment ◽  
Process Modification

We studied three process modifications to investigate their effects on the property and yield recovery capabilities of kraft pulping integrated with hemicellulose pre-extraction of southern pine. Loblolly pine chips were pre-extracted with hot water until the sugar extraction yield reached the targeted value of 10% and then subjected to conventional and modified kraft pulping. Modification included polysulfide pretreatment; polysulfide-sodium borohydride dual pretreatment, and polysulfide followed by polysulfide-sodium borohydride dual pretreatment two-stage pretreatments prior to kraft pulping. In the first modification, about 5% of the lost pulp yield (total 7%) caused by hemicellulose pre-extraction could be recovered with 15%-20% polysulfide pretreatment. Complete recovery (7%) was achieved with simultaneous pretreatment using 15% polysulfide and 0.5% sodium borohydride with 0.1% anthraquinone in polysulfide-sodium borohydride dual pretreatment. Two-stage pretreatment using recycled 15% polysulfide followed by simultaneous treatment of 6% polysulfide and 0.4%–0.5% sodium borohydride with 0.1% anthraquinone also achieved 100% yield recovery. Continuous recycling of 15% polysulfide employed in the two-stage process modification maintained its yield protection efficiency in a repeated recycling cycle. No significant changes in paper strength were found in handsheets prepared from the three process modifications, except for a minor reduction in tear strength.

Bioassay of Pine Bark Extracts as Biting Stimulants for the Southern Pine Beetle

1981 ◽  
Author(s):  
H.A. Thomas ◽  
J.A. Richmond ◽  
E.L. Bradley
Keyword(s):  
Pine Bark ◽  
Southern Pine Beetle ◽  
Southern Pine ◽  
Pine Beetle

A Guide to Southern Pine Seed Sources

1987 ◽  
Author(s):  
Clark W. Lantz ◽  
John F. Kraus
Keyword(s):  
Southern Pine ◽  
Seed Sources

Use of longitudinal vibration and visual characteristics to predict mechanical properties of No. S Southern pine 2x8 and 2x10 Lumber

2020 ◽  
Vol 52 (3) ◽  
pp. 280-291
Author(s):  
F. J. N. Franca ◽  
T. S. F. A. Franca ◽  
R. D. Seale ◽  
R. Shmulsky
Keyword(s):  
Mechanical Properties ◽  
Longitudinal Vibration ◽  
Southern Pine ◽  
Visual Characteristics

scholarly journals Contrasting Competitor and Predator Responses to a Short-Lived Southern Pine Beetle Outbreak: A Case Study

2020 ◽  
Author(s):  
Stephen R Clarke ◽  
Jessica Hartshorn
Keyword(s):  
Natural Enemy ◽  
Bark Beetles ◽  
Southern Pine Beetle ◽  
National Forest ◽  
Population Fluctuations ◽  
Thanasimus Dubius ◽  
Southern Pine ◽  
Widespread Application ◽  
Pine Beetle

Abstract The southern pine beetle (SPB) Dendroctonus frontalis Zimmermann, is the most important insect pest of pines in the southeastern United States, with outbreaks often resulting in thousands of hectares of pine mortality. Natural enemies and competitors have been cited as significant regulators of SPB populations and, therefore, outbreaks. A recent outbreak on the Homochitto National Forest (NF) in Mississippi provided an opportunity to undertake a case study comparing population fluctuations of SPB, its major predator Thanasimus dubius, and its competitors, Ips bark beetles. Trap catches of all three were tracked through the course of the outbreak on the Homochitto NF as well as in two other forests with low or no SPB activity. The number of predators collected initially increased on the Homochitto NF in response to the SPB outbreak, but their impact on reducing infestation numbers was unclear. Numbers of Ips trapped were similar across all three forests, indicating that other factors were regulating SPB populations. The outbreak only lasted a single year, and its brevity likely limited the availability of host resources for natural enemy and competitor populations. Additional studies are warranted to explore the mechanisms affecting the extent and duration of SPB outbreaks, such as active forest management. Study Implications: The widespread application of cut-and-leave treatments during a short duration southern pine beetle (SPB) outbreak on the Homochitto National Forest did not result in immediate increased collections of Ips bark beetles, competitors of SPB. Similar population trends of Ips bark beetles in areas with and without SPB infestations suggest that other factors, such as climate, regulate population numbers. Low numbers of the main SPB predator, Thanasimus dubius, immediately preceded an outbreak, and trap collections increased after outbreak onset, reaffirming the importance of this natural enemy in SPB population fluctuations.

scholarly journals Lichen Community Response to Prescribed Burning and Thinning in Southern Pine Forests of the Mid-Atlantic Coastal Plain, USA

Fire Ecology ◽  
2015 ◽  
Vol 11 (3) ◽  
pp. 14-33 ◽  
Author(s):  
David G. Ray ◽  
Jason W. Barton ◽  
James C. Lendemer
Keyword(s):  
Coastal Plain ◽  
Prescribed Burning ◽  
Community Response ◽  
Atlantic Coastal Plain ◽  
Pine Forests ◽  
Southern Pine ◽  
Lichen Community ◽  
Atlantic Coastal

Field Evaluation of Fenitrothion for Prevention of Tree Mortality from Southern Pine Beetle Attack12

1981 ◽  
Vol 74 (1) ◽  
pp. 30-32 ◽  
Author(s):  
Russell F. Mizell ◽  
William W. Neel ◽  
James H. Lashomb
Keyword(s):  
Tree Mortality ◽  
Field Evaluation ◽  
Southern Pine Beetle ◽  
Southern Pine ◽  
Pine Beetle

ATTRACTION OF HYLOBIUS PALES (HERBST) (COLEOPTERA: CURCULIONIDAE) TO PHEROMONES OF BARK BEETLES (COLEOPTERA: SCOLYTIDAE)

1990 ◽  
Vol 122 (3) ◽  
pp. 423-427 ◽  
Author(s):  
Thomas W. Phillips
Keyword(s):  
Field Experiment ◽  
Bark Beetle ◽  
Bark Beetles ◽  
Suitable Host ◽  
Male And Female ◽  
Pine Weevil ◽  
Ips Calligraphus ◽  
Hylobius Pales ◽  
Host Resource

AbstractResults of a field experiment indicate that adults of the pine weevil Hylobius pales (Herbst) respond to pheromones of bark beetles. Each sex of H. pales was more attracted to traps baited with the combination of a pine bolt infested with male Ips calligraphus Germar plus the synthetic Dendroctonus Erichson pheromones frontalin and exo-brevicomin, than to traps baited with pine bolts alone. The combined numbers of male and female H. pales caught in traps baited only with Ips calligraphus-infested bolts were significantly greater than numbers caught in traps baited with uninfested control bolts. The attraction of H. pales to bark beetle pheromones may represent a kairomonal response in which weevils exploit semiochemicals from other species that signify a suitable host resource.

scholarly journals Traditional field metrics and terrestrial LiDAR predict plant richness in southern pine forests

2021 ◽  
Vol 491 ◽  
pp. 119118
Author(s):  
C.T. Anderson ◽  
S.L. Dietz ◽  
S.M. Pokswinski ◽  
A.M. Jenkins ◽  
M.J. Kaeser ◽  
...  
Keyword(s):  
Pine Forests ◽  
Southern Pine ◽  
Terrestrial Lidar ◽  
Plant Richness
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