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Agronomy Written Test Questions
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Agronomy Written Test QuestionsAnd Answers
_____ is a loss that occurs before harvest begins. - -Preharvest loss
- _________ indicates the amount of time it takes for a pesticide to
biodegrade or break down. - -Pesticide persistence
- ___________ are flowering, broad-leaf plants with soft stems. - -Forbs
- _____________ are considered to be healthy fats - -Polyunsaturated fats
- _______________ is made from the endosperm only. - -White flour
- __________________ are absorbed by the roots or other plant parts and
moved throughout the plant by vascular tissues - -Translocated herbicides
- A _________ is an organism that benefits from a prolonged association
with another organism or host. - -parasite
- A __________ is a localized diseased area or lesion that is discolored. - -
canker
- A _____________ is a long row of cut hay. - -windrow
- A _______________ license is required for people applying restricted-use
pesticides to produce an agricultural commodity on property they own or
control. - -private applicator
- A (n) _________ is a plant that can fix nitrogen from the air in the soil - -
legume
- A broadleaf herbicide is applied to a field on a windy day and is blown
to a conservation area. How is the conservation area classified? - -
nontarget area
- A farm manager calibrates a sprayer to deliver 30 GPA (gallons per
acre) at 4 MPH. However, the operator assigned to the task travels at 6
MPH (the pressure remains constant). What is the result? - -The
application rate falls to 20 gallons per acre.
- A farmer scouting his field notes that weeds have reached the injury
threshold throughout the entire corn field. What type of herbicide
application would be his best choice? - -broadcast
, - A farmer wants to eliminate ragweed and pigweed that are competing
with corn in a field. What type of herbicide should she use? - -a selective
herbicide
- A forester mixed chemical pesticides and applied them to a tree using
recommended procedures. Afterwards, he used the bathroom, and then
washed his hands. The route of entry of pesticides into his body would
most likely occur through _____ exposure. - -dermal
- A grower faced a situation where a pest appeared to be eliminated
from a field, and after a few weeks the pest repopulated the field. What is
the best explanation for how this occurred? - -pest resurgence
- A grower has a choice between two pesticides that are both labelled
for use against a particular pest. Pesticide A has a LD50 of 100, and
pesticide B has a LD50 of 300. What can he conclude? - -Pesticide A is
more poisonous than pesticide B.
- A grower notices that a crop displays yellow streaking and stunted
growth and identifies the problem as virus-related. How would this type of
disturbance be classified? - -infectious diseaseinfectious disease
- A heavy rainfall causes flooding of a field. Within a week the crop
shows symptoms of disease including the yellowing of leaves. How would
this type of disturbance be classified? - -abiotic disease
- A lawn maintenance company promotes its weed control program.
What is the type of application in terms of timing? - -postemergence
- A park maintenance worker wants to double the flow rate of a nozzle
from 0.25 GPM at 15 psi to 0.50 GPM. How would she change the pressure
to double the flow rate? - -increase it to 60 psi
- A pesticide user sees the letters (EC), (WP), (DF), (S), (G), and (D) on
various pesticide products. What do these letters represent? - -
formulations
- A soybean seed consists of an embryo, two cotyledons, and a seed
coat called a __________. - -tester
- A susceptible host plant, a disease-producing agent, and a favourable
environment are associated with _______. - -the disease triangle
- A vegetable grower applies herbicides in narrow strips usually 10 to 12
inches wide. What is this type of application? - -band
- According to the USDA, what are the top states for oat production? - -
North Dakota, Minnesota, South Dakota, Wisconsin, Texas
, - An agricultural company hires a qualified person who has as one of his
duties the responsibility of applying pesticides on the company's property.
How would this person be classified? - -Commercial Not-for-Hire Operator
- An agronomist has identified evidence of insects devouring the leaves
of a crop. What would be the most effective means of control? - -a
stomach insecticide
- An insect, such as the grasshopper, undergoes incomplete
metamorphosis. What process allows the insect to continually grow to
reach a mature size? - -molting
- An organization must have ________ person(s) licensed as an applicator
at each location. - -at least one
- Annual grasses and small-seeded broadleaf weeds can be controlled in
sunflower crops by applying the herbicide before the sunflower is seeded.
How would this treatment be classified? - -pre-plant
- Blowing out a plugged nozzle or eating without washing contaminated
hands can result in ________. - -oral exposure
- Breeding wheat to rye produces_________, which has one set of rye
chromosomes and three sets of wheat chromosomes. - -triticale
- Corn is ___________. - -gynoecious
- Corn is ___________. - -gynoecious
- Corn is classified as a ___________ crop. - -cereal grain
- Corn requires ____________ most other crops. - -more nutrients than
- Corn smut is an obligate parasite. What does this mean? - -It extracts
nutrients from living plant tissues and survive apart from its host
- Dicot plant weeds including dandelions, ground ivy, plantain, and
spurge are called __________. - -broadleaf weeds
- Dry flowables, solutions, and dusts are examples of _____. - -
formulations
- Economic injury level is _____. - -the point at which the cost of pest
control equals the revenue loss caused by a
pest
- From what parts of the field should samples be collected in a crop
scouting program? - -from random spots
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