Claim · model-written summary
Estimated blackbird damage to ripening sunflower in North Dakota in 1980 exceeded $6 million.
- Taxon
- sunflower (Helianthus annuus)
Helianthus annuuse0 - Interactor
- blackbird
Turdus merulae0pest - Outcome
- blackbird damagee0
- Direction
- exceedede0
- Value
- $6 millione0
- Setting
- North Dakotae0
Not reportedMaterialGeneCompoundOrgan / stageSecond interactorSecond interactor roleTreatmentComparatorQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The most recent estimate of blackbird damage to ripening sunflower (Helianthus annuus) in North Dakota in 1980 exceeded $6 million.”
Title
MANAGEMENT IMPLICATIONS DERIVED FROM BIRD DAMAGE ASSESSMENTS IN NORTH DAKOTA SUNFLOWER
Joseph L. Guarino; John L. Cummings Lincoln (University of Nebraska) 1985
Other claims from this paper (5)
- Observation In each of four survey years, less than 5% of North Dakota sunflower fields had greater than 10% blackbird damage.
- Observation Up to 50% of statewide blackbird damage occurred in the sunflower fields with greater than 10% damage.
- Recommendation Successful blackbird control requires timely action when birds are concentrated.
- Intervention effect Frightening blackbirds early in the damage season disperses damage across sunflower fields.
- Mechanism Dispersing damage by frightening blackbirds early can allow compensatory sunflower growth and largely unaffected yields at harvest.