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United States Department of Agriculture

Agricultural Research Service

Title: Plant-Pest Relationships of the Orchard Ecosystem

Author
item Leskey, Tracy

Submitted to: Concise Encyclopedia of Temperate Zone Tree Fruits
Publication Type: Popular Publication
Publication Acceptance Date: September 12, 2002
Publication Date: N/A

Technical Abstract: A pest is considered to be an organism in direct competition with humans for a valued resource. Pests have the potential to lower yields and reduce marketability of agricultural products. There are five categories of pests that can cause economically important damage in orchard ecosystems: arthropods, disease-causing pathogens, nematodes, vertebrates, and weeds. A particular type of damage can be caused by a single organism or by interactions between several organisms such as arthropod- or nematode- vectored diseases. Ultimately, damage in a particular orchard ecosystem is caused by organisms belonging to all categories, leading to economic losses.

Last Modified: 10/30/2014
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