Download or read book Evaluating Popcorn as Potential Refuge for European Corn Borer Ostrinia Nubilalis and Corn Rootworm Beetles Diabrotica Spp written by Colothdian Deavonder Tate and published by . This book was released on 2004 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt: Popcorn was evaluated for its potential as a refuge for European corn borer, Ostrinia nubilalis (Hübner) and the corn rootworm complex, which includes western, Diabrotica virgífera virgífera LeConte, and northern, Diabrotica barberi Smith and Lawrence, corn rootworms. The first objectives of these studies were to determine if more larvae were produced in popcorn than in field corn and to determine how popcorn influenced female oviposition and larval distribution within neighboring field corn. Two varieties of popcorn (M140, 105d and M3374Y, 118d), one mixture of popcorn (50% 105d and 50% 118d), and field corn (DK580, 108d) were evaluated. Significantly higher densities of O. nubilalis larvae were found in popcorn than field corn. Moth oviposition and larval distribution were evaluated using 105d popcorn embedded in several cornfields across Iowa. Significantly more egg masses and larvae were found in the popcorn compared with field corn. One or two rows of field corn adjacent to popcorn tended to have higher numbers of egg masses and larvae compared with background field corn. Number of eggs per egg mass was significantly higher in popcorn than field corn. These data suggest more O. nubilalis are produced in popcorn than field corn. Popcorn has no effect on O. nubilalis egg mass and larval distribution after 1.5m. The second objective was to determine if popcorn can influence corn rootworm distribution. Two varieties of popcorn (105-d and 118-d), one mixture of popcorn (50%: 105-d and 118-d), and field corn (108-d) were evaluated. Significantly higher numbers of western and northern corn rootworm adults were captured from popcorn plots in 2000 and 2002. Adult corn rootworm captures were not significantly different from popcorn and field-corn plots during 2001. The third and fourth objectives were to determine if total corn rootworm beetle emergence and the rate of beetle emergence were similar from 20 plots of popcorn and field corn with various treatment combinations. Emergence rates and total beetle emergence from popcorn plots tended to be lower than from field-corn plots. These data suggest popcorn influences adult corn rootworm distribution; however, compared to field corn, popcorn produces fewer beetles.
Download or read book Dissertation Abstracts International written by and published by . This book was released on 2004 with total page 740 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The European Corn Borer Pyrausta Nubilalis H bner written by Alexander Edmond Cance and published by . This book was released on 1917 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Questions and Answers on the European Corn Borer written by United States. Bureau of Entomology and published by . This book was released on 1927 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Toxic Or Repellent Action to the European Corn Borer of Corn Plants Grown in Soil Treated with Various Compounds written by David Dewitt Questel and published by . This book was released on 1949 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The European Corn Borer written by United States. Entomology Research Division and published by . This book was released on 1962 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evaluation of Natural Enemies of the European Corn Borer Ostrinia Nubilalis Lepidoptera Pyralidae written by Mpho Wycliffe Phoofolo and published by . This book was released on 1997 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Observations on the European Corn Borer and Its Major Parasites in the Orient written by W. B. Cartwright and published by . This book was released on 1933 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Survey of the Parasites of the European Corn Borer Ostrinia Nubilalis Hubner in South Carolina written by Jack Alan Wilson and published by . This book was released on 1988 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Biology of the European Corn Borer Pyrausta Nubilalis H bn and Two Closely Related Species in Northern Ohio written by F. W. Poos and published by . This book was released on 1926 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The European Corn Borer written by Carl John Drake and published by . This book was released on 1926 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Preliminary Report Upon the Infestation and General Status of the European Corn Borer in Western New York written by Hastings Newcomb Bartley and published by . This book was released on 1931 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Status of Imported Parasites of European Corn Borer written by D. W. Jones and published by . This book was released on 1927 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Infestation of Corn Ears by the European Corn Borer and Cribbed Corn as an Auxiliary Source of Infestation written by L. H. Patch and published by . This book was released on 1933 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Protecting Market Sweet Corn from the European Corn Borer written by William Alfonso Baker and published by . This book was released on 1942 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Heat and Time of Exposure Necessary to Kill Larvae of the European Corn Borer in Ear Corn written by George W. Barber and published by . This book was released on 1929 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Survival of European Corn borer Larvae in Barns and Other Storage Places written by L. B. Scott and published by . This book was released on 1933 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
