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19 Cards in this Set
- Front
- Back
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Phenotype |
The physical ability of an individual organism, based on the relationship between an organisms genotype and environmental conditions |
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Genotype |
The genetic constitution of an organism as determined by the set of genes it carries |
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Alternate host |
Plants that support the survival of a past when it's main host, usually a crop plant, is not available |
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Density-independent |
Factors that affect population growth similarly regardless of population density; include disturbances such as floods, drought, fire, other unpredictable environmental conditions, and most pest control actions. |
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Density-dependent |
Factors that have different effect on population growth when populations are high compared to when they are low |
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Organic matter |
Any matter that is derived from living organisms; in the soil, this would include decaying plant, microbial, and animal matter. |
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Saprophyte |
Organisms that derive their nourishment from decaying plant matter. |
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Intercropping |
Growing more than one crop in a field at the same time. |
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R strategist |
Species that have high rates of reproduction and growth and are able to colonize new areas rapidly. |
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K strategists |
Species that demonstrate good competitive abilities when competition for resources is high. |
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Key pests |
A pest that causes major damage on a crop on a regular basis unless controlled. |
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Occasional pest |
A pest that becomes intolerable only irregularly, often due to climate, environmental influences, or as a result of human activity. |
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Secondary pest |
Pests that occur as a result of actions taken to control a key pest. |
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Pesticide resistance |
The genetically acquired ability of an organism to survive a past application at doses that once killed most individuals of the species. |
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Cross resistance |
Resistance to multiple pesticides of same mode of action after introducing to only one. |
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Fallowing |
Leaving a field unplanted for a season or part of a season. |
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Mode of action |
The mechanism by which a pesticide or pesticide kills or controls a target organism. |
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Persistence |
Amount of time it takes for a pesticide to degrade; measured in terms of half-life. |
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Field monitoring |
Group of individuals of the same species that are the same age. |
