Download or read book Development and Fecundity of the Southwestern Corn Borer Lepidoptera Pyralidae as Affected by Plant Water Stress and a Secondary Host written by Muhammad Aslam and published by . This book was released on 1985 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Growth and Development of the Southwestern Corn Borer on Corn Lepidoptera Pyralidae written by Robert J. Whitworth and published by . This book was released on 1977 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Factors Affecting the Growth and Development of the Southwestern Corn Borer Diatraea Grandiosella Dyar Lepidoptera written by David Jacob and published by . This book was released on 1971 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Observations on the Overwintering Survival and Spring Development of the Southwestern Corn Borer Diatraea Grandiosella Dyar Lepidoptera written by Ranald H. Langille and published by . This book was released on 1975 with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Population Dynamics and Natural Enemies of the Southwestern Corn Borer Lepidoptera Pyralidae in the Texas High Plains written by Allen Earlyn Knutson and published by . This book was released on 1987 with total page 330 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bibliography of Agriculture written by and published by . This book was released on 1990 with total page 1254 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effects of Selected Corn Tissues Growth Stages and Genotypes on Southwestern Corn Borer written by Jesus Loera Gallardo and published by . This book was released on 1979 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Relationships of Host Plant Vigor Stalk Moisture Content and Stalk stored Soluble Carbohydrates to the Girdling Activity of the Southwestern Corn Borer Diatraea Grandiosella Dyar Lepidoptera written by Donald B. Zepp and published by . This book was released on 1976 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt: A series of experiments was conducted during 1973-1976 at the University of Missouri-Columbia and the University of Missouri Delta Center Research Farm in Pemiscot County, Missouri; these studies were designed to investigate the hypotheses that the girdling activity of the southwestern corn borer, Diatraea grandiosella Dyar (Lepidoptera: Pyralidae is directly related to host plant physiology is a regulatory mechanism of this girdling. Corn leaf removal and fruiting prevention studies were undertaken in 1973 in Bonne and Pemiscot Counties. In the latter, data were recorded regarding the effects of leaf removal and/or ear bagging on the incidence of girdling of infested stalks and the effects of planting date on natural infestation. The Boone County portion of these studies provided data regarding the corn stalk moisture and soluble solid contents of the treated plants, and also provided comparison of these factors in girdled and nongirled plants. The girdled plants of this studu were also analyzed to determine their moisture content and soluble solid percentages (SSP) above and below the sites of girdling to detect gradient effects on girdling. Preliminary screening of eight vareties of sweet sorghum (sorgo), two varieties of corn, and one variety each of grain sorghum and sugar cane were conducted in Pemiscot County in 1973. The percentages of successful infestation and infested plants girdled were analyzed and used to select five sorgo varieties for moisture content and SSP analyses in 1974 in Boone County.(...).
Download or read book The Effects of Herbicide Applications and Host on Southwestern Corn Borer Diatraea Grandiosella Dyar Development and Overwintering Survival written by Darrell Wayne Kitten and published by . This book was released on 1987 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Agrindex written by and published by . This book was released on 1995 with total page 1390 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Post diapause and Larval Development of the European Corn Borer Ostrinia Nubilalis H bner Lepidoptera Pyralidae in North Dakota written by Mark William Hoard and published by . This book was released on 1994 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bibliography of Agriculture written by and published by . This book was released on 1992 with total page 1742 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effects of Western Corn Rootworm Larval Feeding Drought and Their Interaction on Maize Performance and Rootworm Development written by Mervat Ahmed Badawy Mahmoud and published by . This book was released on 2015 with total page 165 pages. Available in PDF, EPUB and Kindle. Book excerpt: The western corn rootworm, Diabrotica virgifera virgifera LeConte can affect water relations and yield of its host, maize (Zea mays L.), under normal soil moisture. Drought stress negatively affects plant growth and yield. Anecdotal data have suggested that the effect of western corn rootworm is greater under drought and the effect of drought is greater under rootworm infestations, but few experiments have controlled both moisture and rootworm levels. We hypothesized that if drought and rootworms both occur, there would be a negative synergistic effect on maize growth and yield. To test this hypothesis, a series of greenhouse and field experiments were performed. Greenhouse experiments tested only one maize line at three different moisture levels and three different western corn rootworm infestation levels. This was done not only with neonate larvae, but also second instar larvae and eggs in separate, full experiments. Overall, the greenhouse results indicated that under the conditions of these experiments, the effect of drought was greater than the effect of western corn rootworm and the interactions between soil moisture level in western corn rootworm infestation level did not affect plant traits such as water potential, stomatal conductance, shoot air-dried weight, and root air-dried weight in most of the trials. Rootworms did add some interesting complexity to the greenhouse experiment. For instance, plants without western corn rootworm were more stressed than the moderate western corn rootworm infestation for the drought treatments in the third greenhouse experiment. Drought also impacted western corn rootworm larvae in the same experiment, but only when the larvae were already stressed at the highest infestation level. Field studies also were conducted in 2012, 2013, and 2014 with treatments varying soil moisture levels, western corn rootworm infestation levels, and maize hybrids with and without tolerance to drought and rootworm pressure. In 2012 and 2013, western corn rootworm infestation significantly impacted yield, but its impact on yield was much less than the effect of drought. When under drought and rootworm pressure, the Bt+AQUAmax hybrid with tolerance to western corn rootworm and drought was generally higher yielding and significantly less water-stressed than other hybrids. Root damage ratings were not significantly impacted by drought or its interactions with western corn rootworm infestation. Both drought and western corn rootworm affected water potential, stomatal conductance, root complexity, and beetle emergence. The magnitude of the effect of drought versus western corn rootworm infestation level varied depending on the factor being evaluated, but in general drought had a greater effect on maize growth factors. We must reject our hypothesis that rootworms and drought have a negative synergistic effect on maize growth and yield under the conditions of our study.
Download or read book Resistance of Maize to European Corn Borer Damage and Its Relationship to Larval Behavior written by Elizabeth Margaret Lamb and published by . This book was released on 1992 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Environment Abstracts Annual written by and published by . This book was released on 1992 with total page 1216 pages. Available in PDF, EPUB and Kindle. Book excerpt: This database encompasses all aspects of the impact of people and technology on the environment and the effectiveness of remedial policies and technologies, featuring more than 950 journals published in the U.S. and abroad. The database also covers conference papers and proceedings, special reports from international agencies, non-governmental organizations, universities, associations and private corporations. Other materials selectively indexed include significant monographs, government studies and newsletters.
Download or read book Second brood Southwestern Corn Borer Survival Development Rate and Feeding Damage on a Resistant and a Susceptible Corn Hybrid written by Gerardo A. Reyes-Nunez and published by . This book was released on 1978 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effects of Corn Host Plant Resistance on the Southwestern Corn Borer written by Christopher Alan Daves and published by . This book was released on 2006 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt:
