Agricultural pest control Exam Questions
and Answers
Non-Persistent - Correct Answers -Breaks down quickly to harmless or less harmful
products
Persistent - Correct Answers -Breaks down slowly and may remain in the environment
for long periods of time
Accumulative - Correct Answers -May build up n the bodies of animals in food chains,
including man
Chronic effects of pesticides caused by long term exposure to sub lethal levels may be
more important than acute(Direct) mortality due to? - Correct Answers -A Single
Exposure
Common Cocklebur - Correct Answers -Xanthium Pensylvanicum, summer annual
pests
Johnsongrass - Correct Answers -Is Perennial
Redroot Pigweed - Correct Answers -Is Summer Annual
Horsenettle - Correct Answers -Is Pernnial. Leaves alternate, wavy edges or lobed, with
yellowish spines on leaf mid-ribs, veins and stems
Smutgrass - Correct Answers -Ergot infested seed cause seed heads to leave black
marks on trousers
Bitter sneezeweed - Correct Answers -Plants with bitter taste, imparting undesirable
odors or flavors to dairy products
Pesticide Movement from Place to Place - Correct Answers -1.Drift-Problem when off
target
2.Erosion-Wind and Water
3.Leaching-Little movement
4.Volatilization
5.Codistillation-Soil and Water
6.Streams-Sediment
7.Air-Global Movement
, 8.Animals-Residues
The problem of Drift is magnified by Decreasing the? - Correct Answers -Droplet Size
Research Data show that droplets are generally ____ for pest control. - Correct
Answers -More Effective
Soil contamination with pesticides may be a result of ____ or ____ such as runoff, or
drift from treated animals and plants - Correct Answers -Direct Application, Indirect
Sources
Persistence in Soil - Correct Answers -1.Insecticide Itself
2.Soil Type
3.Moisture
4.Microorganisms
5.Soil Temperature
6.Cover Crops
7.Cultivation
8.Mode of Application
9.Formulation
10.Translocation
Recommended rates of certain Herbicides and Insecticides are ____ for Heavy soils
than for Light Sandy Soils. - Correct Answers -Higher
Moisture generally increases the ____ of Pesticides and Lessens their _____. - Correct
Answers -Breakdown, Persistence
Water Sources of Contamination - Correct Answers -1.Direct Application
2.Accidental Application and Drift
3.Runoff from treated areas
4.Waste from Manufacturing
5.Leaching
6.Pesticide
7.Sewage
Acute Kills are very noticeable initially but do not have? - Correct Answers -Long lasting
effects
Insects and Mites that attack plants, damage them by feeding on ____, tunneling in
____, feeding on the ____, or Feeding on the ___ or ____. - Correct Answers -Leaves,
stems, roots, fruits, seeds
Prevention is usually the way to manage ___ and ___ that can damage plants by
reducing or destroying the plant stands. - Correct Answers -Diseases, Nematodes
and Answers
Non-Persistent - Correct Answers -Breaks down quickly to harmless or less harmful
products
Persistent - Correct Answers -Breaks down slowly and may remain in the environment
for long periods of time
Accumulative - Correct Answers -May build up n the bodies of animals in food chains,
including man
Chronic effects of pesticides caused by long term exposure to sub lethal levels may be
more important than acute(Direct) mortality due to? - Correct Answers -A Single
Exposure
Common Cocklebur - Correct Answers -Xanthium Pensylvanicum, summer annual
pests
Johnsongrass - Correct Answers -Is Perennial
Redroot Pigweed - Correct Answers -Is Summer Annual
Horsenettle - Correct Answers -Is Pernnial. Leaves alternate, wavy edges or lobed, with
yellowish spines on leaf mid-ribs, veins and stems
Smutgrass - Correct Answers -Ergot infested seed cause seed heads to leave black
marks on trousers
Bitter sneezeweed - Correct Answers -Plants with bitter taste, imparting undesirable
odors or flavors to dairy products
Pesticide Movement from Place to Place - Correct Answers -1.Drift-Problem when off
target
2.Erosion-Wind and Water
3.Leaching-Little movement
4.Volatilization
5.Codistillation-Soil and Water
6.Streams-Sediment
7.Air-Global Movement
, 8.Animals-Residues
The problem of Drift is magnified by Decreasing the? - Correct Answers -Droplet Size
Research Data show that droplets are generally ____ for pest control. - Correct
Answers -More Effective
Soil contamination with pesticides may be a result of ____ or ____ such as runoff, or
drift from treated animals and plants - Correct Answers -Direct Application, Indirect
Sources
Persistence in Soil - Correct Answers -1.Insecticide Itself
2.Soil Type
3.Moisture
4.Microorganisms
5.Soil Temperature
6.Cover Crops
7.Cultivation
8.Mode of Application
9.Formulation
10.Translocation
Recommended rates of certain Herbicides and Insecticides are ____ for Heavy soils
than for Light Sandy Soils. - Correct Answers -Higher
Moisture generally increases the ____ of Pesticides and Lessens their _____. - Correct
Answers -Breakdown, Persistence
Water Sources of Contamination - Correct Answers -1.Direct Application
2.Accidental Application and Drift
3.Runoff from treated areas
4.Waste from Manufacturing
5.Leaching
6.Pesticide
7.Sewage
Acute Kills are very noticeable initially but do not have? - Correct Answers -Long lasting
effects
Insects and Mites that attack plants, damage them by feeding on ____, tunneling in
____, feeding on the ____, or Feeding on the ___ or ____. - Correct Answers -Leaves,
stems, roots, fruits, seeds
Prevention is usually the way to manage ___ and ___ that can damage plants by
reducing or destroying the plant stands. - Correct Answers -Diseases, Nematodes
