The 2005 ESA Annual Meeting and Exhibition
December 15-18, 2005
Ft. Lauderdale, FL

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Friday, December 16, 2005 - 10:30 AM
0326

Somewhere under the windrow: Harvest effects on ladybeetles in alfalfa

Alexander P. Cunningham, apc@unlserve.unl.edu1, Stephen D. Danielson, sdanielson1@unl.edu1, and James R. Brandle, jbrandle1@unl.edu2. (1) University of Nebraska-Lincoln, Department of Entomology, 202 Plant Industry, University of Nebraska-Lincoln, Lincoln, NE, (2) University of Nebraska-Lincoln, School of Natural Resources, 103 Plant Industry, University of Nebraska-Lincoln, Lincoln, NE

Ladybeetle (Coleoptera: Coccinellidae; species including Coleomegilla maculata, Coccinella septempunctata, and Harmonia axyridis) development studies were conducted in relation to harvest timing and biological control in alfalfa. Growing degree-day data were collected in alfalfa stands in Southeastern Nebraska for both ladybeetles and alfalfa. Pre- and post-harvest sampling show mortality effects on various life stages of ladybeetles. Implications for cultural and conservation biological control are discussed.


Species 1: Coleoptera Coccinellidae Coccinella septempunctata (Seven-spotted Lady beetle)
Species 2: Coleoptera Coccinellidae Coleomegilla maculata (Spotted Lady beetle)
Species 3: Coleoptera Coccinellidae Harmonia axyridis (Multicolored Asian Lady beetle)
Keywords: Cultural control

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