Unit 16: Integrated Pest Management

Biological control of plat pest is…
A. the use of man-made chemicals to control pests.
B. using living natural organisms or material for control of plant pests.
C. the newest control method.
D. the oldest pest-control method.
A good example of where biological control has worked with at least some success is…
A. the Japanese beetle.
B. the Mexican bean beetle and Colorado potato beetle.
C. the gypsy moth.
D. all of the above
Some plants produce natural pesticides. One of the most successful new plants producing a natural insecticide is…
A. the neem tree.
B. the onion plant.
C. alfalfa.
D. none of the above
Crop rotation can help control some soil diseases and some insects. To be effective rotations should be…
A. 3 or 4 years long.
B. 1 or 2 years long.
C. at least 5 years long.
D. 5 to 10 years long.
Bacillus thuringiensis is a biological control agent that will control…
A. aphids.
B. the Mexican bean beetle.
C. most caterpillars.
D. Verticillium wilt.
Allelopathy is a natural phenomenon in which…
A. bright light produces disease symptoms in plants.
B. one plant secretes chemicals that inhibit root growth or see germination of other seeds.
C. two plants grow better when planted close to one another.
D. plants grow toward sunlight.
Small microorganisms call endophytes protect plants from insects by…
A. growing inside the plant and protecting it from insects.
B. forming a protective layer on the plant’s surface to protect it from insects.
C. filling the air with spores that infect insects.
D. all of the above
The newest class of insecticides are insect growth regulators. They control insects by…
A. stomach poisoning.
B. changing their normal growth cycle.
C. killing their eggs.
D. all of the above.
Researchers have found ______ to be an excellent source of place insect and disease control agents.
A. the soil
B. plant leaves
C. rain
D. plant stems
Many root diseases can be controlled by…
A. cultivating around roots
B. adding compost and beneficial microoragisms to the soil.
C. root pruning.
D. cutting back the top of the plant.

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