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Filtering by: Alt title Can American elm be dried without excessive warping? Degree Field Entomology

Certain factors affecting colonization of Ponderosa pine by Ips confusus (Leconte) (Coleoptera : Scolytidae)

Creator:

Pitman, Gary Boyd

Abstract:

The purpose of this study was to study in some detail host factors which influence the population dynamics of bark beetle. The dissertation objectives were to ascertain the applicability of utilizing osmotic pressure values and relative turgidity values of phloem tissue as indicators which reflect upon the physiological profile of...

Resource Type:

Dissertation

Full Text:

platform at a height of Saran shade cloth can be purchased from Alapha Hardware, Main Street, Grass
Biology, distribution and economic threshold of the strawberry root weevil, Otiorhynchus ovatus (L.), in peppermint

Creator:

Cacka, Joseph Francis

Resource Type:

Masters Thesis

Full Text:

distribution best describes the insect counts. The latter problem of excessive sampling can be remedied
A chalcid parsite, Dinarmus acutus Thomson, of the vetch bruchid, Bruchus brachialis Fahraeus

Creator:

Leong, Kingston Lin Hoy, 1940-

Resource Type:

Dissertation

Full Text:

August no adults can be found in the field. After a mean incubation period of 14.5 days, the young larva
Survival and development of the flat-headed fir borer in forest residues as affected by host and microclimatic conditions

Creator:

Scott, Donald Wayne

Abstract:

The purpose of this study was to examine various host and microclimatic influences affecting the survival and development of the flatheaded fir borer, Melanophila drummondi (Kirby) in Douglas fir, Pseudotsuga menziesii (Mirbel) Franco residues. It also expands current knowledge of the biology, bionomics, life history, ecology, and biotic potential for...

Resource Type:

Dissertation

Full Text:

trees (Burke, 1910; Essig, 1958; Keen, 1952), but can be very destructive to living trees as well