Soil and Stand Conditions Related to Southern Pine Beetle Activity in Hardin County, Texas1

1968 ◽  
Vol 61 (2) ◽  
pp. 565-566 ◽  
Author(s):  
Peter L. Lorio
Keyword(s):  
Southern Pine Beetle ◽  
Southern Pine ◽  
Pine Beetle ◽  
Stand Conditions

Management Strategies to Reduce Losses from the Southern Pine Beetle

1993 ◽  
Vol 17 (3) ◽  
pp. 150-154 ◽  
Author(s):  
R. P. Belanger ◽  
R. L. Hedden ◽  
P. L. Lorio
Keyword(s):  
Management Strategies ◽  
Southern Pine Beetle ◽  
Southern Pine ◽  
Forest Pests ◽  
The Past ◽  
Management Objectives ◽  
Pine Beetle ◽  
Potential Losses ◽  
Stand Conditions ◽  
Silvicultural Guidelines

Abstract Southern pine beetle outbreaks have increased in frequency, severity, and distribution during the past 30 yr. Preventive silvicutural practices offer the most promising and long-lasting means of reversing this trend. Procedures are available for ranking the susceptibility of stands to beetle attack. Silvicultural guidelines have been prescribed to lower the probability of attack in stands and reduce potential losses should beetle outbreaks occur. Forest management objectives, stand conditions, regional beetle populations, and possible interactions with other forest pests need to be considered in developing management strategies that can reduce losses from the southern pine beetle. South. J. Appl. For. 17(3):150-154.

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.

Southern pine beetle: Enhancement or inhibition of aggregation response mediated by enantiomers of endo-brevicomin

1985 ◽  
Vol 72 (2) ◽  
pp. 99-100 ◽  
Author(s):  
J. P. Vit� ◽  
R. F. Billings ◽  
C. W. Ware ◽  
K. Mori
Keyword(s):  
Southern Pine Beetle ◽  
Southern Pine ◽  
Aggregation Response ◽  
Pine Beetle
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