Autor: |
George M. Linz, James J. Hanzel, Jeng Mah |
Rok vydání: |
1990 |
Předmět: |
|
Zdroj: |
Crop Protection. 9:359-362 |
ISSN: |
0261-2194 |
Popis: |
The influence of sunflower head shape and bract orientation on feeding preferences of red-winged blackbirds (Agelaius phoeniceus L.) was examined. Only concave or near-flat sunflower heads orientated in a ground-facing position consistently received little bird damage. Bract orientation did not influence feeding. Development of bird-resistant sunflower cultivars may represent a cost-effective strategy to reduce blackbird depredation to sunflower. |
Databáze: |
OpenAIRE |
Externí odkaz: |
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