National FFA Agronomy CDE Written Test 2017

Front

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 use?

Back

4.5

Front

Which of the following have chewing mouth parts? earwigs, adult moths, leafhoppers, aphids

Back

earwigs

Front

An adjuvant is:

Back

a spreader sticker or other application enhancer

Front

Which of the following pesticides can be absorbed by the plant and translocated within the plant? contact, systemic, adsorptive, volatile

Back

systemic

Front

Knowledge of the stages in a pest life cycle, insect or disease, is important because:

Back

all of the above

Front

Keeping crops or desired plants vigorous, healthy, and competitive with weeds is an example of a _____________type of weed control.

Back

cultural

Front

Established perennial weeds are more difficult to control than annual weeds because:

Back

perennial weeds have stored energy reserves that can support plants when stressed

Front

Which of the following soil types would contain a type of expansive clay that is cracked part of the year? vertisols, histosols, inceptisols, peptosols

Back

vertisols

Front

Mycotoxins are poisonous chemical compounds sometimes found in grain samples. They are produced by: bacteria, viruses, nematodes, fungi

Back

fungi

Front

In wheat, Feekes' developmental stage 10, or in the "Boot" refers to the stage when the:

Back

head is about to appear