Comparisons between blackbird damage to corn and sunflower in North Dakota

Klosterman, Megan E.; Linz, George M.; Slowik, Anthony A.; Homan, H. Jeffrey

doi:10.1016/j.cropro.2013.06.004

Cited by 34 publications

(38 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A study performed by Klosterman et al . examined the damage made to 120 randomly selected corn ( Zea mays L.) and sunflower plots in the PPR region of North Dakota over a 2‐year period.…”

Section: Introductionmentioning

confidence: 99%

The economic impacts of blackbird (Icteridae) damage to sunflower in the USA

Ernst

Elser

Linz

et al. 2019

Pest Management Science

View full text Add to dashboard Cite

BACKGROUND: Blackbird (Icteridae) damage to ripening sunflower (Helianthus annuus L.) has been a persistent economic issue in the USA for the last five decades. To quantify losses, we surveyed blackbird damage from 2001 to 2013 (excluding 2004) to physiologically mature sunflower in eight states: North Dakota, South Dakota, Texas, Nebraska, Minnesota, Colorado, Kansas, and Vermont. RESULTS:We pooled data gathered during the most recent 5 years (2009 to 2013) of the survey and found losses averaged $US2.5 million and $US11.3 million for confectionery and oilseed hybrids, respectively. Three states, North Dakota, South Dakota, and Nebraska, had sufficient acreage and bird damage to warrant economic analyses using a regional economic model. The average annual total (direct plus indirect) economic impact of bird damage to sunflower production for North Dakota, South Dakota, and Nebraska was $US18.7 million, $US7.3 million, and $US2.6 million, respectively. CONCLUSION:This study provides a better understanding of the broader economic implications of bird damage to sunflower by estimating the macroeconomic impacts of lost sunflower production in the region. Additionally, the findings of this study may be used to inform decisions regarding bird management policy by providing policymakers with information to determine the downstream value of bird management and the possible benefits of improved methods that further mitigate losses.

show abstract

“…A study performed by Klosterman et al . examined the damage made to 120 randomly selected corn ( Zea mays L.) and sunflower plots in the PPR region of North Dakota over a 2‐year period.…”

Section: Introductionmentioning

confidence: 99%

The economic impacts of blackbird (Icteridae) damage to sunflower in the USA

Ernst

Elser

Linz

et al. 2019

Pest Management Science

View full text Add to dashboard Cite

show abstract

“…Blackbird (Icteridae) damage is the key reason that agricultural producers in the U.S. have stopped planting sunflower (Helianthus annuus) along major blackbird flyways (Hulke and Kleingartner 2014). Damage is quite variable and usually clumped around roosting habitat, which limits economically important damage to relatively few growers (Klosterman et al 2013). Although the damage is clumped and localized, it seems to have had a pervasive effect on regional production by discouraging unaffected producers from planting sunflower.…”

Section: Introductionmentioning

confidence: 99%

“…Although the damage is clumped and localized, it seems to have had a pervasive effect on regional production by discouraging unaffected producers from planting sunflower. Localized damage may be 100% in extreme circumstances but is generally 1-3% regionally (Linz and Hanzel 1997, Linz et al 2011, Klosterman et al 2013, Linz and Hanzel 2015.…”

Section: Introductionmentioning

confidence: 99%

Potential Use of Perennial Sunflower to Reduce Blackbird Damage to Sunflower

Linz¹,

Hulke²,

Kantar³

et al. 2014

vertebrate_pest_conference

View full text Add to dashboard Cite

Wildlife Conservation Sunflower Plots (WCSP) have shown potential to reduce blackbird (Icteridae) damage in commercial sunflower. Also known as lure, decoy, or trap crops, WCSP are strategically placed food plots that provide an easily available and proximate food source that entices blackbirds away from valuable commercial crops. By providing an alternative food source, WCSP reduce direct damage to commercial fields, while also lowering indirect costs that producers incur attempting to prevent blackbird damage. However, cost inefficiencies have deterred widespread use of WCSP. Cost-benefit ratios of using WCSP would be greatly improved if a perennial sunflower were used instead of the annual types currently available. Perennial sunflower would reduce seed cost and planting cost, and perhaps lower opportunity costs, if able to thrive on poorer quality soils. In the near-term, scientists are focused on producing a perennial sunflower sufficiently productive to replace annual WCSP plantings. In 2013, scientists from the University of Minnesota, USDA-Agricultural Research Service, and USDA Wildlife Services National Wildlife Research Center evaluated a test plot of an open-pollinated variety of perennial sunflower resulting from genetic crossing of a domesticated annual species (Helianthus annuus) and a perennial wild species (H. tuberosus). Here, we report on results from the 2013 field test and discuss the outlook for development of perennial sunflower, which would help lessen damage to commercial sunflower when used in WCSP; provide a pesticide-free food source for beneficial insects, such as honey bees; help stabilize highly erodible lands near wetlands; and provide year-round habitat for wildlife. Lastly, we provide an initial strategy for using perennial sunflower to reduce blackbird damage in commercial sunflower.

show abstract

“…We used two criteria to measure corn damage. First, we estimated percent damage using methods reported by Klosterman et al (2013). Length and the circumference of each ear of corn were measured: circumference was measured at the center point of the ear.…”

Section: Concentration Response/preference Testing (Sweet Corn)mentioning

confidence: 99%

European starling feeding activity on repellent treated crops and pellets

et al. 2014

Self Cite

View full text Add to dashboard Cite

a b s t r a c tThe varied diet of European starlings (Sturnus vulgaris L.) can present challenges when working with starlings in experimental testing and holding situations and should be taken into account when testing repellents applied to food. Our purpose was to evaluate an anthraquinone-based repellent (Arkion Life Sciences, New Castle, DE, USA; active ingredient 50% 9,10-anthraquinone; hereafter anthraquinone) and SucraShieldÔ (Natural Forces, Davidson, NC, USA; active ingredient 40% sucrose octanoate esters) repellent for non-lethal protection of specialty crops (i.e., fruit, sweet corn) and grains. Our objectives were to evaluate (1) laboratory efficacy of anthraquinone applied topically to blueberries and sweet corn, (2) laboratory efficacy of anthraquinone applied to two pellet matrices, and (3) laboratory efficacy of SucraShieldÔ as a chemical repellent for European starlings. We found that anthraquinone was not an effective repellent for blueberries or sweet corn, although consumption of each matrix varied potentially due to sucrose content. Anthraquinone was an effective repellent on CU Bird Carrier pellets with 6275 ppm needed to achieve 80% repellency, whereas up to 35,000 ppm anthraquinone was not effective when the anthraquinone was not topically applied. SucraShield was not an effective repellent for starlings and in fact increased consumption of CU Bird Carrier as concentration increased.Published by Elsevier Ltd.

show abstract

Comparisons between blackbird damage to corn and sunflower in North Dakota

Cited by 34 publications

References 9 publications

The economic impacts of blackbird (Icteridae) damage to sunflower in the USA

The economic impacts of blackbird (Icteridae) damage to sunflower in the USA

Potential Use of Perennial Sunflower to Reduce Blackbird Damage to Sunflower

European starling feeding activity on repellent treated crops and pellets

Contact Info

Product

Resources

About