Forest Sciences Commons^™

Comparison Of Three Mass Media For Communicating Forestry Information For Young People, Ross Lee Tomlin

Electronic Theses and Dissertations

A comparison of three mass media ( TV, radio and newspaper) was made to find which would be more effective at communicating forestry information to young people. The field study was conducted at Nacogdoches, Lufkin, and Kilgore High Schools in East Texas. Questionnaires given to students before and after exposure to six media spots tested forestry knowledge and attitudes. One spot in each medium presented a hardsell threat approach, the other a softsell-humorous approach. A final questionnaire measured student preferences of the media. Analysis of data indicated newspaper and TV to be the most effective media, with radio less effective. …

Pisolithus Tinctorius Mycobiont Inoculations As A Factor In Performance Of Containerized And Bare-Root Shortleaf Pine Seedlings On Lignite Minesoils In Panola County, Texas, Hoy Lee Bryson

Electronic Theses and Dissertations

The effects of artificial soil infestation with basidiospores and vegetative mycelia of the fungal symbiont Pisolithus tinctorius on ectomycorrhizae development of short leaf pine (Pinus echinata) seedlings grown in styroblock containers were tested in the greenhouse. These preliminary tests showed that both spores and mycelia will produce satisfactory ectomycorrhizae development. Various methods of inoculation had little effect on growth and development of containerized seedlings or on the accumulation of N, P, K, Ca, Mg, Na, Mn, Zn, or Cu in foliage and lateral roots. The styroblock containerization system used in conjunction with sandy loam soil/vermiculite (2:1 v/v) potting-mix produced excellent …

Southern Pine Beetle Handbook: Woodpeckers And The Southern Pine Beetle, James Kroll, Richard N. Conner, Robert R. Fleet

eBooks

In 1974 the U.S. Department of Agriculture initiated the Combined Forest Pest Research and Development Program, an interagency effort that concentrated on the Douglas-fur tussock moth in the West, on the southern pine beetle in the South, and on the gypsy moth in the Northeast. The work reported in this publication was funded in part by the Program. This handbook is one in a series on the southern pine beetle.

Outlook For Timber From Mississippi’S Private Nonindustrial Forests, Steven H. Bullard, G. H. Weaver

Faculty Publications

Forestry is the dominant land use in Mississippi. Fifty-five percent of the State's total land base is commercial forest and 73 percent of this is held by private nonindustrial owners. The estimated timber harvest value for 1979 was over $550 million. Forest products were second only to soybeans in value in Mississippi's agricultural and forestry crops. The 1979 value is the fourth consecutive record harvest and represents increases in both harvest volume and product prices.

Behavior Of The Southern Pine Beetle On The Bark Of Host Trees During Mass Attack, Jack E. Coster, W.D. Bunt, P.C. Johnson

Faculty Publications

Twenty-two percent of the southern pine beetles, Dendroctonus frontalis Zimmermann (Coleoptera: Scolytidae), that landed on the bark during the 1st 4 days of mass attack in East Texas, eventually entered the tree. Other beetles either flew away (43%), dropped off the host (32%), or were eaten (2%). No significant difference in searching time or distance traveled was found for day of attack or beetle sex. Males spent significantly less total time on the bark than females.

Spatial Distribution Of Flying Southern Pine Beetle (Coleoptera:Scolytidae) And The Predator Thanasunus Dubius (Coleoptera:Cleridae), Jack E. Coster, Paul C. Johnson, Reed J. Reeve

Faculty Publications

Spatial dispersion patterns of flying southern pine beetles, Dendroctonus frontalis Zimm., and the clerid predator Thanasimus dubius (F.) were determined within 3 natural infestations of southern pine beetle (SPB) in eastern Texas using grids of sticky traps. There was significant positive association of the 2 insects throughout the trapping grids, although aerial population densities of the clerid were inversely related to aerial densities of SPB. Aggregation patterns were quantified using the index of patchiness (lP) and the regressions of mean crowding (m) on mean density (m). Both methods showed a highly clumped pattern for both beetle species. SPB density in …

Characterization Of Grand Fir Colonized By Nosodenron Californicum Horn (Coleoptera: Nosodendridae), David Kulhavy

Faculty Publications

In two 50-hectare forested areas in a Thuja plicata/Pachistima myrsinites habitat type, 52 grand firs, Abies grandis (Douglas) Lindley, hosts of Nosodendron californicum Horn, were located. Trees colonized by N. 'califomicum averaged 40.6 min height, 115 years in age and 59.5 em in diameter. Average elevation was 906.8 m.

Wood Products Industries In The Texas Economy, Ricardo Clemente

eBooks

Forests, and the manufacturing plants which make wood products are widely dispersed over eastern Texas . Their dispersion tends to obscure their economic impact. Two federal agencies, the Forest Service of the Department of Agriculture and the Bureau of Census of the Department of Commerce provide most of the available data on forest resources and the forest industry; isolation of some data is difficult, however, because some census categories combine data for non-wood manufacturing with that for wood products . This paper is an attempt to bring together the most pertinent data on the forest industries of Texas.

Characterizing Flight Aggregation Of The Southern Pine Beetle, Jack E. Coster, Paul C. Johnson

Faculty Publications

Spatial aggregation patterns of flying southern pine beetles, Dendroctonus frontalis Zimm., were studied using a systematic grid of sticky flight traps placed in 3 beetle infestations. Five methods of characterizing dispersion were compared: Lloyd's index of patchiness (IP), Morisita's index of dispersion (15), the coefficient of dispersion (CD), the slope of

Taylor's power function (b) and the slope of Iwao's regression of mean crowding on mean density (m). All indices indicated a high degree of aggregation of flying southern pine beetles within the infestations. The indices varied, however, in their ranking of aggregation for the 3 study sites. IP and …

Effects Of Prescribing Burn On Cavity Trees Of Red-Cockaded Woodpeckers, Richard N. Conner, Ann Snow

Faculty Publications

No abstract provided.

Zinc Uptake In Loblolly Pine Seedlings, Victor Zillmer

Electronic Theses and Dissertations

Zinc concentrations in the root, terminal growth, stem, and needles of loblolly pine (Pinus taeda L.) were measured in 72 seedlings grown in washed sand, fertilized with Zn(N03)2. Zinc treatment periods were early spring, late spring, and summer. Zinc uptake was the greatest in early spring. Zinc nitrate fertilizer and remaining soil zinc at treatments end had no effect on mycorrhizae, height, or diameter growth. Linear and multiple regressions were derived using residual soil zinc and treatment zinc that can predict zinc concentrations in different plant parts that have r values from .7440 to .8170. Linear regressions for the prediction …

Key To The Wood-Decaying Polyporaceae Of The East Texas Region, Steve Bishop, W. T. Mcgrath

eBooks

The family includes those pore fungi whose fruiting bodies are tough, leathery or woody and whose pore layer usually cannot be separated easily from the context. The pores on the undersurface are only exterior openings of tubes bearing spores and in each species these tube mouths, or pores, are a definite shape and size. Occasionally pore walls will break up giving the appearance of teeth or gills. Fruiting bodies can be sessile, stemmed, effused-reflexed or resupinate (Fig . 2). Members of the family can be either perennial or annual, with the annual species growing during the summer and maturing that …

Field Response Of The Southern Pine Beetle To Behavioral Chemicals, T.L. Payne, Jack E. Coster, L.J. Edson, E.R. Hart, J.V. Richerson

Faculty Publications

Field tests were conducted in East Texas in 1973-77 to evaluate the influence of 7 behavioral chemicals on the flight and landing behavior of the southern pine beetle, Dendroctonus frontalis Zimmerman. A mixture of frontalin plus host tree volatiles attracted flying beetles within an infestation. Trans-verbenol synergized the activity of frontalin and substituted for host tree volatiles, expinene and loblolly turpentine. Verbenone in a 1: 1 ratio with frontalin did not significantly affect trap catch. At higher concentrations of verbenone, trap catch was significantly reduced. Endobrevicomin inhibited trap catch when added to an attractant-baited trap. Exo-brevicomin showed no …

Probability Of Attack By Southern Pine Beetle In Relation To Distance From An Attractive Host Tree, Paul C. Johnson, Jack E. Coster

Faculty Publications

The pattern of southern pine beetle (SPB) attack was examined in two infestations in East Texas to determine the probability of host tree attack (PA) as a function of distance (X) from a recently attacked tree (pheromone source). In an infestation having a low rate of newly attacked trees per day and only a few pheromone sources occurring simultaneously, distance was a critical factor in determining PA. The probability decreased as In X, and was described by the regression model, PA=0.06757- 0.2583 In X. Distance, however, was less critical in a larger infestation which had multiple pheromone sources occurring simultaneously …

A Simple Model For Predicting Annual Numbers Of Southern Pine Beetle Infestations In East Texas, James Kroll, Hershel C. Reeves

Faculty Publications

Eleven climatic variables, recorded during the period 1966-76, were used to develop a multiple linear regression model for predicting potential number of southern pine beetle (SPB) infestations for east Texas. Four climatic variables were significantly (P < 0.05) related to numbers of SPB infestations. These were (1) mean temperature for February of current year, (2) total rainfall for previous summer, (3) total rain fall for previous fall, and (4) total rainfall for previous spring. The regression analysis accounted for 90.7 percent of the variation in yearly numbers of SPB infestations.

The Age And Fertility Of Lignite Strip Mine Spoils From The Darco Mine, Harrison County, Texas, Reagan Cook

Electronic Theses and Dissertations

Field observation of lignite strip mine spoils from the Darco mine near Marshall, Texas, revealed that gray spoil materials of various ages were devoid of vegetation. Within the same sites, spoil materials which were non-gray supported several conditions of revegetation. Analysis of spoil materials from this mine was undertaken to determine if spoils were differentiated on a chemical basis. Gray materials appear to have greater mineral sources of zinc, iron, and sulfate than non-gray spoils, and greater concentrations of zinc, calcium, magnesium, and potassium at all sites. Further, older spoils (17 to 31 years of age) have mean pH values …

Use Of Lignite Fly Ash As A Soil Amendment, Thomas Victor Brown

Electronic Theses and Dissertations

One-year-old loblolly pine (Pinus taeda L.) seedlings were grown in a greenhouse in potted mixtures of two Texas lignite fly ashes and a Troup sand, Sacul sandy loam, and a sandy clay loam strip-mine spoil. Mixtures contained 0, 25, 50, 75 and 100 percent fly ash. After six months, soil fly ash mixtures were analyzed for N, P, Ca, Mg, K, Na, Mn, Zn, pH, cation-exchange capacity, percent base saturation, and texture. Needle and root tissue analyses were performed on both live and dead seedlings. Survival and height growth were both adversely affected by fly ash amendments. Nearly all seedlings …

The Effects Of Prescribed Burning On Nutrient Content Of Selected Understory Species In An East Texas Loblolly-Shortleaf Pine Stand, Kelly Bell

Electronic Theses and Dissertations

The objectives of this study were to determine whether prescribed burning affected nutrient levels in leaves and twigs of six species and whether there were differences in response between leaves and twigs. Backfire and headfire treatments were used to determine differences between burning techniques. Samples were collected in October, 1974. The burn was in March, 1975 and post-burn sampling was in June, 1975, September, 1975, and June, 1976. Leaf and twig tissue were analyzed for contents of protein, calcium, potassium, and phosphorus and then subjected to statistical analysis. No difference was found between burning techniques. Protein and phosphorus increased and …

Towards Integrated Protection From The Southern Pine Beetle, Jack E. Coster

Faculty Publications

Current southern pine beetle ( Dendroctonus frontalis Zimm.) control depends heavily upon direct approaches having short-term payoffs. Chemical or physical tactics have fidled to check epidemics in the Gulf South. A major challenge lies in developing and using indirect methods for managing this pest. Promotion of stand resistance and biotic agents, and manipulation of stand density and cutting practices, hold prospect for reducing the incidence and severity of beetle-caused losses.

Crown Positions Within Unthinned Loblolly Pine Plantation Canopies, J. David Lenhart, Dwight R. Hicks, Chi-Yun Ho

Faculty Publications

Crown class percentages are not affected by age or trees/acre. The percentage of dominant and suppressed trees is affected by land productivity.

Distribution Of Some Predators And Parasites Of The Southern Pine Beetle In Two Species Of Pine, Jack E. Coster, Catherine Stein

Faculty Publications

Southern pine beetle, Dendroctonus frontalis Zimmerman, and its natural insect enemies were reared from infested loblolly pines, Pinus taeda L., and shortleaf pines, P. echinata Mill. Southern pine beetle broods were most dense during spring (Mar.-May) and least dense in late summer. Populations were higher in late winter than in midsummer. There were no differences in beetle densities between the pine species. Twelve predators and 9 parasites comprised ca. 99% of the natural enemy complex.

Total density of the 12 predators did not vary with either season or tree species. Total parasite density, however, was highest in midsummer, lowest in …

Aggregation Of The Southern Pine Beetle In Response To Attractive Host Trees, Jack E. Coster, T.L. Payne, E.R. Hart, L.J. Edson

Faculty Publications

Dendroctonus frontalis Zimmerman were attracted to shortleaf pines, Pinus echinata MilL, using infested shortleaf pine bolts. Response was monitored during the ensuing mass attack period by the use of sticky traps suspended along the tree boles. Uninfested host materials or host materials containing only male beetles did not elicit mass attack of trees. Female beetles either alone or in combination with males, usually stimulated mass attack within 24 h. Traps at 3-4 m above the ground caught the greatest number (26.7%) of beetles. Trap catches peaked on the 3rd day of attack and declined rapidly thereafter. Daily flight activity was …

Site Factors Affecting Growth Of Slash Pine In The Texas Post Oak Belt, W. D. Hacker, M. Victor Bilan

Faculty Publications

A study was conducted in the Post Oak Belt of East Texas to determine which site factors affected height growth of slash pine (Pinus elliottii Engelm.). Height-age pairs were developed from stem analysis data. Nonlinear regression was implemented to develop a generalized height-age model. After curves were developed, stepwise regression was used to determine impacts of environmental variables on height growth. Environmental factors correlated with height growth included A horizon depth and those related to moisture relations including seasonal precipitation, average daily temperature, and texture of the A horizon. South. J. . Appl. For. 21(2):71-74.

Stomatal Opening, Transpiration, And Need/E Moisture In Loblolly Pine Seedlings From Two Texas Seed Sources, M. Victor Bilan, C.T. Hogan, H.B. Carter

Faculty Publications

Relationships among percentage of open stomates, transpiration, and needle moisture content in seedlings of loblolly pine of two Texas provenances were studied under changing soil moisture conditions. Needle moisture content correlated very well with transpiration under favorable moisture conditions, and with percentage of open stomates under soil moisture stress. Transpiration and percentage of open stomates were correlated under a wide range of moisture conditions. Foliage moisture content was still relatively high in both ecotypes when stomates closed and transpiration drastically declined. The "Lost Pines" seed source appeared to have superior ability to conserve moisture under droughty conditions by closure of …

Sex-Ratio Estimation, Sequential Sampling, And The Programmable Packet Calculator, Paul C. Johnson

Faculty Publications

No abstract provided.

Aspects Of Some Compacted Campground Ameliorating Practices, Keith Foster

Electronic Theses and Dissertations

The purpose of this study was to determine if the direct mechanical manipulation of compacted campground soils, with and without the addition of organic materials and the planting of grasses, had any long lasting effect on the amelioration of these deteriorated campsites. An attempt was also made to determine the natural recovery time for East Texas sandy loam soils using the campground closure method. Closure or partial (seasonal) closure of campsites reduced compaction to an acceptable level in three years. Roto-tilling alone was the least effective treatment. Roto-tilling and the addition of bark or chips to maintain the loose soil …

Texas Forestry Paper No. 27, J. David Lenhart, David M. Hyink

Texas Forestry Papers, No. 1-29, 1970-1976

"Number of 8.7 - foot veneer bolts in loblolly pine trees of old-field plantations in the interior west gulf coastal plain"

Texas Forestry Paper No. 28, J. J. Stransky, L. K. Halis, E. S. Nixon

Texas Forestry Papers, No. 1-29, 1970-1976

"Plants following timber harvest: importance to songbirds"

Texas Forestry Paper No. 29, Ellis V. Hunt Jr., Edwin L. Miller

Texas Forestry Papers, No. 1-29, 1970-1976

"Plant cover and soil erosion following site preparation and planting in east texas"

Effects Of Six Insecticides On Emergence Of Some Parasites And Predators From Southern Pine Beetle Infested Trees, Jack E. Coster, I. R. Ragenovich

Faculty Publications

Six insecticides (lindane, phosmet, diazinon, acephate, propoxur, and carbaryl) were tested to determine effects on predators and parasites associated with southern pine beetle, Dendroctonus frontalis Zimmerman, in eastern Texas. Eleven species of parasites and predators emerged from insecticide-treated pine bolts. The most prevalent species was Coeloides pissodis followed by Medetera lJistriata, Roptrocerus xylophagorum, Corticeus glaber, and Thanasimus dulJius. In terms of emergence from treated pines, only diazinon significantly reduced the total number of associated insects. They were 65% fewer in number following diazinon treatment. The insecticides differed in their effects on the 11 associates. C. glaber, C. pissodis, M. lJistriata, …