Claim · model-written summary
Up to 50% of statewide blackbird damage occurred in the sunflower fields with greater than 10% damage.
- Taxon
- sunflower (Helianthus annuus)
Helianthus annuuse1 - Interactor
- blackbird
Turdus merulae1pest - Outcome
- total state-wide damagee0
- Value
- 50%e0
- Qualifier
- greater than 10% damagee2
- Setting
- North Dakotae1
Not reportedMaterialGeneCompoundOrgan / stageSecond interactorSecond interactor roleTreatmentComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“as much as 50% of the total state-wide damage occurred in these fields”
e1“blackbird damage to ripening sunflower (Helianthus annuus) in North Dakota”
e2“sunflower fields in the state received greater than 10% damage”
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 Estimated blackbird damage to ripening sunflower in North Dakota in 1980 exceeded $6 million.
- Observation In each of four survey years, less than 5% of North Dakota sunflower fields had greater than 10% blackbird 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.