Browsing Theses and Dissertations (MU) by Thesis Department "Plant Sciences (MU)"
Now showing items 1-14 of 14
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The Coccidae of scale insects of Missouri
(University of Missouri--Columbia, 1917)Text from pages 1-2: Missouri stands almost surrounded by her sister states without having given her contributions to coccidology along with the others. Kansas, Iowa, Illinois, Indiana and Ohio has each added much to our ... -
The control of San Jose scale and the profitable rejuvenation of neglected orchards by spraying
(University of Missouri--Columbia, 1917)Text from page 1: The San Jose scale is the most serious insect pest of the Missouri orchards. It is capable of killing young fruit trees in two or three years and old trees become unprofitable and succumb to the attack ... -
The effect of weed density, root senescence, and egg density on western corn rootworm larval establishment, survivorship, and damage potential
(University of Missouri--Columbia, 2007)Western corn rootworm, Diabrotica virgifera virgifera Leconte beetle emergence from and root damage to transgenic (Bt) maize (Zea mays L.) plants producing the Cry3Bb1 protein and isoline plants in the presence of varying ... -
The ephemeroptera, plecoptera, and trichoptera of Missouri state parks with notes on biomonitoring, mesohabitat associations, and distribution
(University of Missouri--Columbia, 2005)Thirty-seven streams within 15 Missouri State Parks were sampled for immature and adult Ephemeroptera, Plecoptera, and Trichoptera (EPT) through 2002 and early 2003. All totaled, 34,251 EPT larvae were collected, all ... -
Evaluating the insect fauna on Missouri native wildflowers and selected cultivars
(University of Missouri--Columbia, 2010)[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] Insects respond to a wide variety of plant characteristics in their search for plant provided resources. There is debate as to whether native cultivated ... -
Historical, landscape and resource influences on the coccinellid community in Missouri
(University of Missouri--Columbia, 2014)The diversity and abundance of native lady beetle (Coccinellidae) species in North America is declining. This decline has been attributed to the introduction and establishment of exotic lady beetles, including Coccinella ... -
An investigation of the dipping and fumigation of nusery stock
(University of Missouri--Columbia, 1917)Text from page 3: While engaged in the work, many problems, confronting the nurserymen, concerning the eradication of San Jose scale from nursery stock, have been brought to his attention. As a result, a number of experiments ... -
Molecular diagnostics of economically important Wireworm species (Coleoptera: Elateridae) in midwestern United States
(University of Missouri--Columbia, 2007)Wireworms are a common soil-dwelling pest of corn (Zea mays L.) in the Midwestern United States. Wireworms are a problematic group to control and study due to the difficulty involved in identification. The objectives of ... -
Quantifying the effects of insectary plants on the abundance of natural enemies : implications for controlling insect pests in an organic cabbage eco-system
(University of Missouri--Columbia, 2017)[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] Farmscaping is an ecological approach to pest management that involves planting non-crop plants to boost natural enemy abundance and suppress pest ... -
The seasonal occurrence, soil distribution and flight characteristics of Curculio sayi (Coleoptera: Curculionidae) in mid-Missouri
(University of Missouri--Columbia, 2007)Chestnut trees were once a dominant sight across the deciduous forest of the eastern and central United States, but following a devastating blight in the early 1900's much of the native range for this tree species has been ... -
Some correlation studies in maize
(University of Missouri--Columbia, 1915)The most common method of selecting seed corn has been for many years to pick the best ears from the crib, no consideration whatever being given to the stalks on which they were borne. Within the last few years, however, ... -
Study of anti-cancer effect of winter worm and summer grass on Mcf-7 human breast cancer cells
(University of Missouri--Columbia, 2008)Winter worm and summer grass (WWSG) is one of the most valued traditional Chinese medicines for fighting cancer, increasing longevity, and improving immunity. It consists of the entomopathogenic fungus Cordyceps sinensis ... -
A study of conformation and the correlation of parts in ears of maize
(University of Missouri--Columbia, 1912)Volume upon volume has been written and page after page of statistical material has been compiled in regard to the yield of corn, the various varieties, the many soil requirements and the fertilizing problems. Notwithstanding ... -
The sublethal effects of methoxyfenozide on the field orientation and courtship behavior of Cydia pomonella (Linnaeus) (Lepidoptera: tortricidae)
(University of Missouri--Columbia, 2008)The sublethal effects of ecdysone agonist methoxyfenozide on the mating behavior and field orientation of codling moth, Cydia pomonella (Linnaeus), was examined. Five different lure types were placed in the upper canopy ...