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The crow in its relation to agriculture: Is it a farm pest? / Publication info. Washington, D.C.:U.S. Dept. of Agriculture,
Table of contents

Please use a genuine email ID and provide your name. The tenth volume examines the various risks that the agricultural system is exposed to. Subscribe to Weekly Newsletter :. Donate Now. Related Stories How scientists contained a deadly tomato pest that travelled across the world Fall Armyworm attack: Low maize yield reduces cattle feed Fall Armyworm attack: Dependence on maize hits Telangana farmers hard. Post a Comment. One community moved a neighborhood roost by just having people out on the sidewalks with noisemakers at dusk for the better part of a week.

Apparently, the crows did not like the party-going human neighbors every night. Reducing outdoor lighting may make the area less attractive to crows.

Crows vs farmers: age-old battle intensifies as corvid numbers increase - North Wales Live

Turn off outdoor lights, use lights aimed towards the ground, or use a motion-trigger that only turns on lights when someone enters the area. While recognizing the value of mature trees, selective thinning and pruning trees can reduce crow use. Pushed from their roost, crows generally move to the nearest similar site.

There will still be crows in the community, just not in the objectionable roost location. Allow the crows a roost site with a stand of tall trees in the same general area as the site where they are unwelcome and do not harass them there so they will leave a problem site more readily. Crows are sometimes blamed for garden damage caused by other animals.


  • The International Magazine, Volume 2, No. 2, January, 1851.
  • The Impact of Pests on the Agriculture Industry.
  • What to do about crows.

Crows hanging around to eat insects and grubs may or may not also help themselves to fruits and vegetables. As long as crows have enjoyed our tasty crops and produce, we have been trying to frighten them away.

What have we learned? Food put out to attract songbirds will also be attractive to crows. Crows and their relatives are especially sensitive to this disease. Once infected, very few crows survive. So, authorities asked the public to report dead crows so they would know when West Nile appeared in a new area.

West Nile virus is now found throughout the lower 48 states and Puerto Rico. Unfortunately, many people got the mistaken impression that crows give people West Nile, which is not the case.

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Mosquitoes spread West Nile virus. Health authorities recommend controlling mosquito populations and avoiding mosquito bites to prevent West Nile virus. When disturbed, spores can become airborne and people can breathe them in.

Most people have no apparent ill effects. A few develop respiratory disease and a very few develop disease of other organs. Histoplasmosis fungus is common in the eastern and central US.

Pest (organism)

As many as 80 percent of people tested in these areas prove to have already been exposed without knowing. People diagnosed with this disease typically work where bird or bat droppings have accumulated over a period of years poultry farmers, contractors clearing old buildings or explore caves where bats lived. Despite the very small risk of harm to people, histoplasmosis has been used to justify killing crows where the nuisance of large roosts annoys people.

A few communities looking for a quick fix to crow roost nuisance killed crows with slow-acting poison DRC Changes in crow numbers are very short term. DRC kills by damaging the kidney and heart. Poisoned birds die slowly over about one to three days. It is inhumane to the crows, who are killed merely for being inconvenient. And the poison may sicken or kill other animals called non-target animals. Crows hide food for later.

Timeline of events

Any animal can find and eat these caches, not just crows. Lancaster, Pennsylvania, was one such community that reached for a quick fix. Local people and bird lovers nationally voiced their strong objections to poisoning crows. Penn State researchers looked at what happened after the poisoning and found that it did not work.

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The Crow in Its Relation to Agriculture: Is It a Farm Pest?

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