You are spraying your customer's lot in town with an insecticide to control aphids. The lot is 10,890
square feet. The insecticide you are using states a maximum of 18 oz. per acre. If you use the maximum
rate of application, how many ounces of the insecticide could you use?
a. 18
b. 4.5
c. 9
d. 12 - b. 4.5
Which of the following have chewing mouth parts?
a. earwigs
b. adult moths
c. leafhoppers
d. aphids - a. earwigs
An adjuvant is:
a. a type of disinfectant for pruners
b. in the pyrethroid chemical class
c. a spreader sticker or other application enhancer
d. a type of biological control for certain weeds - c. a spreader sticker or other application enhancer
Which of the following pesticides can be absorbed by the plant and translocated within the plant?
a. contact
b. systemic
c. adsorptive
d. volatile - b. systemic
Knowledge of the stages in a pest life cycle, insect or disease, is important because:
, a. not all stages cause damage or warrant control
b. stages vary in their susceptibility to control strategies
c. not all stages look alike
d. all the above - d. all of the above
Keeping crops or desired plants vigorous, healthy, and competitive with weeds is an example of a
_____________ type of weed control.
a. mechanical
b. chemical
c. biological
d. cultural - d. cultural
Established perennial weeds are more difficult to control than annual weeds because:
a. perennial weeds start growth earlier in the spring than annual weeds
b. perennial weeds are not sensitive to most herbicides
c. perennial weeds are much bigger than annual weeds
d. perennial weeds have stored energy reserves that can support plants when stressed - d. perennial
weeds have stored energy reserves that can support plants when stressed
Which of the following soil types would contain a type of expansive clay that is cracked part of the year?
a. vertisols
b. histosols
c. inceptisols
d. peptosols - a. vertisols
Mycotoxins are poisonous chemical compounds sometimes found in grain samples. They are produced
by:
a. bacteria
b. viruses
c. nematodes
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