Avian Repellants

Avery, Michael L.

doi:10.1002/047126363x.agr028

Cited by 11 publications

(18 citation statements)

References 50 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Finally, another possible reason for the lower camouflaged seed consumption, may be the absence of search image (Begon et al, 2006) to brown seeds with higher energy consumption for locating seeds in colors similar to the soil, according to optimal foraging theorem (Avery, 2002). However, the ingestion of small grits to help crush foods is a common aspect in the behavior of several bird Families (Sick, 1997).…”

Section: Resultsmentioning

confidence: 99%

“…High mortality rates of carnivorous and granivorous birds caused by pesticides of the carbamate group (Eisler, 1985;Agriculture Canada, 1993;Mineau 1993;Mineau et al, 1999;Mineau, 2005), as well as attempts to repel birds through acoustic, tactile, visual and/or gustative methods (Hawthorne, 1987;Dolbeer, 1999;Avery, 2002;Tobin, 2002) have all been documented. Research has evolved trying to find chemical repellents and or aversive colors for reducing the damage on production and decreasing the poisoning risks for the wild fauna (Tobin, 2002;Avery, 2002).…”

Section: Introductionmentioning

confidence: 99%

“…Research has evolved trying to find chemical repellents and or aversive colors for reducing the damage on production and decreasing the poisoning risks for the wild fauna (Tobin, 2002;Avery, 2002).…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Camouflaging of seeds treated with pesticides mitigates the mortality of wild birds in wheat and rice crops

Almeida¹,

Couto²,

Almeida³

2010

Sci. agric. (Piracicaba, Braz.)

View full text Add to dashboard Cite

Seeds used to plant wheat, corn and rice crops in Brazil are treated with the insecticide carbofuran associated with the dye rhodamine B, attracting granivorous birds and causing mortality during sowing. The objective of this study was to evaluate if using camouflaged seeds can minimize mortality caused by the ingestion of seeds with carbofuran. Alternatives for reducing mortality, such as using carbofuran without rhodamine B or replacing carbofuran by carbosulfan, were compared. Three experiments were carried out in regions of known bird mortality in the states of Paraná and São Paulo, Brazil, using conventional sowing over plowed soil in the traditional planting system, 15,896 kg of seeds in 111.46 ha. Bird carcasses were collected and dissected to unveil which poisoned seed treatments had caused birds' deaths. The mortality mounted to 296 birds of 11 species. Eared doves were the most numerous casualties (263). There was significant correlation between mortality and number of consumed seeds. The consumption of camouflaged seeds was lower than that of commercial seeds treated with rhodamine B. The mortality caused by seeds with both rhodamine B and carbofuran was higher than mortality caused by seeds camouflaged only with carbofuran. The replacement of carbofuran with carbosulfan also seemingly reduced mortality, but carbosulfan mortality might have been underestimated as a result of the apparent movement of affected birds after exposure. Seeds treated with carbofuran and rhodamine B and without any dye, were attractive. Because legal requirement for seeds treated with pesticides to be differentiated by dying, the substitution of rhodamine B by camouflaging must be encouraged.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Camouflaging of seeds treated with pesticides mitigates the mortality of wild birds in wheat and rice crops

Almeida¹,

Couto²,

Almeida³

2010

Sci. agric. (Piracicaba, Braz.)

View full text Add to dashboard Cite

show abstract

“…However, the use of repellents spend resources of high operational and financial costs, has not produced satisfactory results and often violates humanitarian principles causing injury and suffering to the birds. Despite these findings and public criticism, several recent studies evolve in this direction (Tobin, 2002), seeking chemical repellents and/ or color repellents to reduce the damage to production and reduce the risk of pesticide poisoning wildlife (Avery, 2002). Fig.…”

Section: Introductionmentioning

confidence: 99%

“…If food becomes difficult to find, to ingest, and to digest, birds will spend more time and energy to forage. Having them difficulty to maintain a certain rate-making energy, the theory of optimal foraging predicts that animals will look for another food source (Avery, 2002, Begon et al, 2006. The aim of this paper is to present the method of concealment of seeds and how it was designed, with respect to the material tests and seed germination.…”

Section: Introductionmentioning

confidence: 99%

Camouflage of Seeds, a Control Method of the Bird Mortality in Grain Crops

Almeida¹,

Couto²,

Almeida³

2011

Pesticides in the Modern World - Risks and Benefits

View full text Add to dashboard Cite

Inefficiency of anthraquinone‐based avian repellents when applied to sunflower: the importance of crop vegetative and floral characteristics in field applications

Kaiser

Ostlie

Werner

et al. 2020

Pest Management Science

View full text Add to dashboard Cite

BACKGROUND Blackbirds (Icteridae) cause significant damage to sunflower (Helianthus annuus L.) prompting the need for effective management tools. Anthraquinone‐based repellents can reduce feeding by > 80% in laboratory settings, but require birds to learn the negative association through repellent ingestion. We evaluated an anthraquinone‐based repellent applied directly to mature sunflower plants for its ability to reduce bird damage. We used captive male red‐winged blackbirds (Agelaius phoeniceus) to evaluate efficacy of two anthraquinone‐based formulations in varying concentrations and applied in a manner attainable by sunflower producers. We also assessed field application methods for repellent coverage and anthraquinone residues when using ground‐rigs equipped with drop‐nozzles situated below the crop canopy. RESULTS The repellents failed to reduce feeding and birds did not exhibit a preference between untreated and treated sunflowers at concentrations 2.7× the suggested application rate (i.e. 9.35 L ha−1 of repellent). In the absence of disk flowers, which obstruct repellent from reaching the achenes, the repellents failed to reduce consumption. Anthraquinone concentrations in field applications were considerably less than those in the laboratory experiments and did not reduce bird damage. CONCLUSION Efficacy is difficult to achieve in the field due to application issues where growth patterns and floral components of sunflower limit residues on achenes, thus contact with foraging birds. Although field residues could be improved by increasing anthraquinone concentrations in tank mixtures and decreasing droplet size, repellents optimized for loose achenes are inefficient in reducing avian consumption of sunflower when applied to intact plants in a manner representative of commercial agriculture. © 2020 Society of Chemical Industry

show abstract

Avian Repellants

Cited by 11 publications

References 50 publications

Camouflaging of seeds treated with pesticides mitigates the mortality of wild birds in wheat and rice crops

Camouflaging of seeds treated with pesticides mitigates the mortality of wild birds in wheat and rice crops

Camouflage of Seeds, a Control Method of the Bird Mortality in Grain Crops

Inefficiency of anthraquinone‐based avian repellents when applied to sunflower: the importance of crop vegetative and floral characteristics in field applications

Contact Info

Product

Resources

About