Comparisons between blackbird damage to corn and sun fl ower in North Dakota

  title={Comparisons between blackbird damage to corn and sun fl ower in North Dakota},
  author={Megan E. Klosterman and George M. Linz and Anthony A. Slowik and H. Jeffrey Homan},
For sunflower producers in North Dakota, blackbird (Icterinae) damage is a chronic problem costing millions of dollars annually. Sunflower damage surveys were last completed in the state in 1979e1980. Since the last surveys, corn plantings have increased 6-fold to 1500 103 ha, whereas sunflower hectarage has declined by >75% to 310 103 ha. Blackbirds forage on both crops, and this rapid change in North Dakota’s agricultural landscape was a sound inducement for reassessing crop damage. Field… CONTINUE READING

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