| Title: | "Cross-resistance and resistance longevity as induced by bean leaf beetle, Cerotoma trifurcata and soybean looper, Pseudoplusia includens herbivory on soybean" |
| Author(s): | Srinivas P; Danielson SD; Smith CM; Foster JE; |
| Address: | "Department of Entomology, 202 Plant Industry Building, University of Nebraska-Lincoln, Lincoln, NE 68583-0816, USA" |
| ISSN/ISBN: | 1536-2442 (Electronic) 1536-2442 (Linking) |
| Abstract: | "Cross-resistance, and longevity of resistance, induced by the bean leaf beetle, Cerotoma trifurcata, was studied IN the soybean PI 227687 that exhibited induced response in earlier studies. Bean leaf beetle adults and soybean looper, Pseudoplusia includens, larvae were used to induce resistance and to determine beetle feeding preference. Beetles were collected from soybean fields 2 to 5 days prior to the feeding preference test. The level of cross-resistance induced by soybean looper herbivory to subsequent bean leaf beetle feeding was higher when compared to cross-resistance induced by bean leaf beetle herbivory against subsequent feeding by soybean looper. Further, herbivory by the bean leaf beetle also induced resistance against soybean looper feeding. In the longevity study, leaflets from treated plants were collected 5, 10, 12, 14, 16, 20 and 25 days after initiation of feeding. Pairwise comparisons of leaflets from plants treated by bean leaf beetle herbivory with untreated plants revealed that induced responses were highest 14 and lowest 25 days after initiation of feeding. On other sampling days, levels of induced response varied with the sampling day" |
| Keywords: | Animals Coleoptera/*immunology Moths/*immunology Soybeans/*immunology/*parasitology Time Factors; |
| Notes: | "MedlineSrinivas, P Danielson, S D Smith, C M Foster, J E eng Research Support, Non-U.S. Gov't 2004/09/30 J Insect Sci. 2001; 1:5. doi: 10.1673/031.001.0501. Epub 2001 May 9" |
