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John L. Foltz

Texas A&M University

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Featured researches published by John L. Foltz.

Population Ecology | 1976

Mathematical description of within-tree distributions of the various developmental stages ofDendroctonus frontalis Zimm. (Coleoptera: Scolytidae)

Adil M. Mayyasi; Paul E. Pulley; Robert N. Coulson; D. W. DeMichele; John L. Foltz

Probability density functions for the various within-tree developmental life stages ofD. frontalis are derived. The differences between some of these distributions are discussed. The possibility of the existence of a negative feed-back mechanism which enables the beetle to make optimum utilization of the available resources is proposed. In addition, the concept of an optimum location on the infested bole where the environmental (tree) conditions are such that maximum survivorship occurs is advanced.

Canadian Entomologist | 1976

RESOURCE UTILIZATION BY THE SOUTHERN PINE BEETLE, DENDROCTONUS FRONTALIS (COLEOPTERA: SCOLYTIDAE)

Robert N. Coulson; Adil M. Mayyasi; John L. Foltz; Fred P. Hain; William C. Martin

Environmental Entomology | 1976

Topological Mapping to Estimate Numbers of Bark-inhabiting Insects

Paul E. Pulley; John L. Foltz; Adil M. Mayyasi; Robert N. Coulson

Canadian Entomologist | 1976

EGG – GALLERY LENGTH RELATIONSHIP AND WITHIN-TREE ANALYSES FOR THE SOUTHERN PINE BEETLE, DENDROCTONUS FRONTALIS (COLEOPTERA: SCOLYTIDAE)

John L. Foltz; Adil M. Mayyasi; Fred P. Hain; Robert N. Coulson; William C. Martin

Canadian Entomologist | 1979

SPATIAL AND TEMPORAL PATTERNS OF EMERGENCE FOR WITHIN-TREE POPULATIONS OF DENDROCTONUS FRONTALIS (COLEOPTERA: SCOLYTIDAE)

Robert N. Coulson; W. Scott Fargo; Paul E. Pulley; Don N. Pope; John L. Foltz; Audrey M. Bunting

Canadian Entomologist | 1977

SURVIVAL MODELS FOR WITHIN-TREE POPULATIONS OF DENDROCTONUS FRONTALIS (COLEOPTERA: SCOLYTIDAE) 1

Robert N. Coulson; Paul E. Pulley; John L. Foltz; William C. Martin; C. L. Kelley

Journal of Economic Entomology | 1975

Quantitative Evaluation of Frontalure and Cacodylic Acid Treatment Effects on Within-Tree Populations of the Southern Pine Beetle

Robert N. Coulson; John L. Foltz; Adil M. Mayyasi; Fred P. Hain

Environmental Entomology | 1976

Production Flow System Evaluation of Within-tree Populations of Dendroctonus frontalis (Coleoptera: Scolytidae)

Robert N. Coulson; Adil M. Mayyasi; John L. Foltz; Paul E. Pulley

Environmental Entomology | 1976

Host-tree Geometric Models for Use in Southern Pine Beetle Population Studies

John L. Foltz; Adil M. Mayyasi; Robert N. Coulson; Paul E. Pulley; William C. Martin

Canadian Entomologist | 1977

EVALUATION OF PROCEDURES FOR ESTIMATING WITHIN-SPOT POPULATIONS OF ATTACKING ADULT DENDROCTONUS FRONTALIS (COLEOPTERA: SCOLYTIDAE)

Paul E. Pulley; John L. Foltz; Robert N. Coulson; William C. Martin

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Robert N. Coulson

Texas A

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Adil M. Mayyasi

Texas A

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Paul E. Pulley

Texas A

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William C. Martin

Texas A

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Fred P. Hain

Texas A

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Aubrey E. Harvey

Texas A

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Audrey M. Bunting

Texas A

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C. L. Kelley

Texas A

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D. W. DeMichele

Texas A

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Don N. Pope

Texas A

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