CCA (CERTIFIED CROP ADVISOR) EXAM AND
PRACTICE EXAM NEWEST 2026 TEST BANK|
CERTIFIED CROP ADVISOR EXAM PREP WITH
COMPLETE 650 REAL EXAM QUESTIONS AND
CORRECT VERIFIED ANSWERS/ ALREADY GRADED
A+ (BRAND NEW!!)
The factor which most improves the ability of a row crop to compete
with weeds is:
A. Broadcast fertilizer
B. Mono-culture cropping
C. Early harvest
D. Narrow row spacing - Correct Answer - narrow row spacing
A contact herbicide is one that:
A. Is absorbed through plant roots
B. Is absorbed by plant foliage and has systemic action
C. Kills only plant foliage
D. Requires minimal leaf coverage to be effective - Correct Answer -
kills only plant foliage
An advantage of a persistent pesticide is:
A. Usually safer to the environment
B. Extended period of pest control
C. Low toxicity is the user (applicator)
pg. 1
,D. Broad spectrum of control - Correct Answer - extended period of pest
control
Uncontrolled weed competition reduces crop yields the most if it begins:
A. At crop emergence
B. After 1/3rd of the crop growth
C. After 1/2 of the crop growth
D. near maturity of crop - Correct Answer - at crop emergence
For a disease to occur, which factors must be present?
A. Susceptible host
B. Favorable environment
C. Presence of the pathogen
D. All of the above - Correct Answer - susceptible host, favorable
environment, presence of the pathogen
Atrazine is more likely to cause crop damage in succeeding crops if the
pH is:
A. 5.2
B. 6.3
C. 6.7
D. 7.4 - Correct Answer -7.4
Which of the below management practices most effectively controls the
disease tan spot in wheat?
A. Crop rotation
pg. 2
,B. Destroying residue by tillage or burning
C. Resistant cultivars
D. Fungicide treatments - Correct Answer - crop rotation
Post-emergence foliar treatments are least affected by:
A. Temp
B. Humidity
C. Weed stage
D. Ph - Correct Answer - soil pH
The amount of leaching of a pesticide in the soil does NOT depend on
which one of the following:
A. Solubility of the chemical
B. Soil texture
C. Amount of rainfall
D. Pesticide toxicity - Correct Answer - pesticide toxicity
The rate of microbial decomposition of herbicides in the soil depends on
several factors. Which of the following usually increases the rate the
most?
A. Warm, dry soil
B. Cool, dry soil
C. Warm, moist soil
D. Crop grown - Correct Answer - warm, moist soil
pg. 3
, A fungus is an example of a ______ which causes plant disease.
A. Vector
B. Bacteria
C. Pathogen
D. Mosaic - Correct Answer - pathogen
Most foliar fungicides are applied:
A. To control or eradicate existing disease
B. To prevent infection
C. To combat viruses
D. To kill bacteria - Correct Answer - to prevent infection
Nematode damage symptoms typically are expressed:
A. Alt. plants down in single row
B. Only under dry conditions
C. only in monoculture systems
D. Large oval patches - Correct Answer - large oval patches
An insecticide which is sprayed or dusted on the crop and kills when
insects eat portions of the crops is a ______ poison.
A. Stomach
B. Contact
C. Systemic
D. Fumigant - Correct Answer - stomach
pg. 4
PRACTICE EXAM NEWEST 2026 TEST BANK|
CERTIFIED CROP ADVISOR EXAM PREP WITH
COMPLETE 650 REAL EXAM QUESTIONS AND
CORRECT VERIFIED ANSWERS/ ALREADY GRADED
A+ (BRAND NEW!!)
The factor which most improves the ability of a row crop to compete
with weeds is:
A. Broadcast fertilizer
B. Mono-culture cropping
C. Early harvest
D. Narrow row spacing - Correct Answer - narrow row spacing
A contact herbicide is one that:
A. Is absorbed through plant roots
B. Is absorbed by plant foliage and has systemic action
C. Kills only plant foliage
D. Requires minimal leaf coverage to be effective - Correct Answer -
kills only plant foliage
An advantage of a persistent pesticide is:
A. Usually safer to the environment
B. Extended period of pest control
C. Low toxicity is the user (applicator)
pg. 1
,D. Broad spectrum of control - Correct Answer - extended period of pest
control
Uncontrolled weed competition reduces crop yields the most if it begins:
A. At crop emergence
B. After 1/3rd of the crop growth
C. After 1/2 of the crop growth
D. near maturity of crop - Correct Answer - at crop emergence
For a disease to occur, which factors must be present?
A. Susceptible host
B. Favorable environment
C. Presence of the pathogen
D. All of the above - Correct Answer - susceptible host, favorable
environment, presence of the pathogen
Atrazine is more likely to cause crop damage in succeeding crops if the
pH is:
A. 5.2
B. 6.3
C. 6.7
D. 7.4 - Correct Answer -7.4
Which of the below management practices most effectively controls the
disease tan spot in wheat?
A. Crop rotation
pg. 2
,B. Destroying residue by tillage or burning
C. Resistant cultivars
D. Fungicide treatments - Correct Answer - crop rotation
Post-emergence foliar treatments are least affected by:
A. Temp
B. Humidity
C. Weed stage
D. Ph - Correct Answer - soil pH
The amount of leaching of a pesticide in the soil does NOT depend on
which one of the following:
A. Solubility of the chemical
B. Soil texture
C. Amount of rainfall
D. Pesticide toxicity - Correct Answer - pesticide toxicity
The rate of microbial decomposition of herbicides in the soil depends on
several factors. Which of the following usually increases the rate the
most?
A. Warm, dry soil
B. Cool, dry soil
C. Warm, moist soil
D. Crop grown - Correct Answer - warm, moist soil
pg. 3
, A fungus is an example of a ______ which causes plant disease.
A. Vector
B. Bacteria
C. Pathogen
D. Mosaic - Correct Answer - pathogen
Most foliar fungicides are applied:
A. To control or eradicate existing disease
B. To prevent infection
C. To combat viruses
D. To kill bacteria - Correct Answer - to prevent infection
Nematode damage symptoms typically are expressed:
A. Alt. plants down in single row
B. Only under dry conditions
C. only in monoculture systems
D. Large oval patches - Correct Answer - large oval patches
An insecticide which is sprayed or dusted on the crop and kills when
insects eat portions of the crops is a ______ poison.
A. Stomach
B. Contact
C. Systemic
D. Fumigant - Correct Answer - stomach
pg. 4
