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Plant Sciences

Masters Theses

1972

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Field Studies Of Selected Pathogens For The Control Of The Corn Earworm, Heliothis Zea Boddie, W. Robert Tilyard Jr. Dec 1972

Field Studies Of Selected Pathogens For The Control Of The Corn Earworm, Heliothis Zea Boddie, W. Robert Tilyard Jr.

Masters Theses

Tests conducted at the University of Tennessee were designed to compare the control results of the corn earworm by three different pathogens and a standard chemical insecticide. Also, some methods of application were tested. The pathogens tested were a bacterium, Bacillus thuringiensis Berliner, a nuclear polyhedrosis virus specific for Heliothis zea, and the nematode, DD-136.

The treatments were applied under field conditions directly to the ears of corn.

The results indicated that general effectiveness is based on how accessible the pathogens are to the earworm larvae. Best control was accomplished by a treatment using a virus-nematode combination. That treatment …


Vegetation Survey Of Floodplain Forests Along The Wabash River, Philip E. Phillippe Jan 1972

Vegetation Survey Of Floodplain Forests Along The Wabash River, Philip E. Phillippe

Masters Theses

No abstract provided.


Woody Vegetation Survey Of Rocky Branch Nature Preserve, Clark County, Illinois, James T. Hughes Jan 1972

Woody Vegetation Survey Of Rocky Branch Nature Preserve, Clark County, Illinois, James T. Hughes

Masters Theses

No abstract provided.


Photoperiodism And Dormancy In Silver Maple Seedlings, Maria Regis Kilkenny Jan 1972

Photoperiodism And Dormancy In Silver Maple Seedlings, Maria Regis Kilkenny

Masters Theses

No abstract provided.


Old Field Succession In Pinellas County, Florida, Roger T. Poole Jan 1972

Old Field Succession In Pinellas County, Florida, Roger T. Poole

Masters Theses

No abstract provided.


The Bryophytes Of Shelby County, Linda L. Spessard Jan 1972

The Bryophytes Of Shelby County, Linda L. Spessard

Masters Theses

No abstract provided.


A Survey Of The Lichen Flora Of Turkey Run State Park In Parke County, Indiana, Charles J. Mertz Jan 1972

A Survey Of The Lichen Flora Of Turkey Run State Park In Parke County, Indiana, Charles J. Mertz

Masters Theses

No abstract provided.


Broomsedge In Illinois, David F. Kunz Jan 1972

Broomsedge In Illinois, David F. Kunz

Masters Theses

No abstract provided.


Ethnobotanical Studies On Selected Plants Of Northeastern Mexico, Wayne M. Pichon Jan 1972

Ethnobotanical Studies On Selected Plants Of Northeastern Mexico, Wayne M. Pichon

Masters Theses

No abstract provided.