caa a22 4500 397571771 CHVBK 20180308164843.0 cr unu---uuuuu 161202e19960201xx s 000 0 eng 10.1093/ee/25.1.58 doi (NATIONALLICENCE)oxford-10.1093/ee/25.1.58 Evaluating Spring Cankerworm (Lepidoptera: Geometridae) Preference for Siberian Elm Clones [Elektronische Daten] [Mary Ellen Dix, Richard A. Cunningham, Rudy M. King] We evaluated the preferences of larval spring cankerworm, Paleacrita vernata (Peck), for 36 Siberian elm, Ulmus pumila L., clones in laboratory experiments. These clones were selected for superior morphological characteristics, apparent nonpreference by cankerworms, or possible disease resistance. First-instar larvae consumed less leaf area of clones 030, 053, 400, 422, and 425 than most of the other 31 clones evaluated, and more leaf area of clones 026, 038, 067, 406, 411, 11737, and to a lesser extent 23 other clones. Third- and 4th-instars were less selective in their choice of leaves. Trichome density apparently influenced leaf area consumed. Clones 030, 043, 050, 053, 400, 425, and 422 had more trichomes per leaf than the other clones. Leaf maturity preferences varied among elm clones; clones with expanding leaves were preferred over clones with more mature leaves. Larval survival on 050, 053, 400, and 425 was lower than most of the other clones. Techniques for comparing feeding preferences can be used in tree improvement programs of Siberian elm. © 1996 Entomological Society of America Population Ecology nationallicence Ulmus pumila nationallicence defoliation nationallicence resistance nationallicence tolerance nationallicence host synchronization nationallicence survival nationallicence Dix Mary Ellen National Agroforestry Center, Forest Service, Rocky Mountain Forest and Range Experiment Station, USDA, Lincoln, NE 68583-0822 aut Cunningham Richard A. Northern Great Plains Research Laboratory, USDA-ARS, Mandan, ND 58554 aut King Rudy M. Forest Service, Rocky Mountain Forest and Range Experiment Station, Fort Collins,CO 80526-2098 aut Environmental Entomology Oxford University Press 25/1(1996-02-01), 58-62 0046-225X 25:1<58 1996 25 ee https://doi.org/10.1093/ee/25.1.58 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1093/ee/25.1.58 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Dix Mary Ellen National Agroforestry Center, Forest Service, Rocky Mountain Forest and Range Experiment Station, USDA, Lincoln, NE 68583-0822 aut NATIONALLICENCE 700 1- Cunningham Richard A. Northern Great Plains Research Laboratory, USDA-ARS, Mandan, ND 58554 aut NATIONALLICENCE 700 1- King Rudy M. Forest Service, Rocky Mountain Forest and Range Experiment Station, Fort Collins,CO 80526-2098 aut NATIONALLICENCE 773 0- Environmental Entomology Oxford University Press 25/1(1996-02-01), 58-62 0046-225X 25:1<58 1996 25 ee Metadata rights reserved CC BY-NC-4.0 http://creativecommons.org/licenses/by-nc/4.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-oxford