California Applicator License Category D
Plant Agriculture Comprehensive Questions
(Frequently Tested) and Complete Solutions
Graded A+
In what ways can insects be used to control weeds? - Answer: The are
vectors, transmitting disease organisms to plants.
How does crop rotation help control nematode populations - Answer:
Populations will fall if the nematode species has a narrow host range
and requires a living host to survive in the soil.
Select the drawbacks of planting transgenic crops on a pest
management plant. (choose all that apply.) - Answer: -An increase in
pesticide usage
-The emergence of secondary pest problem
-repeated use of the same pesticide in an area
-weeds that develop resistance to the same pesticide as the crop
Which of the following are TRUE about host-plant resistance to
nematode infestation. (select all that apply) - Answer: -Nematode-
resistant plants are best used in a combination with other management
techniques, such as crop rotation and farrowing.
-A plant that is resistant to nematode pest may be susceptible to one or
more alternate pest that live and breed nearby
,-Nematode-resistant plants are a very cost-efficient way to manage
pest nematode species in fields, orchards, or vineyards
A disease resistant cultivar may still become infected when - Answer:
Plants become Physically stressed by overwatering or nutrient
deficiencies.
Using transgenic plants without employing other IPM methods may
increase a pest's - Answer: Resistance to the inserted genes
Why do integrated pest management programs work better than
relying on just one management method - Answer: A diversity of
approaches to managing pest increases the long-term effectiveness of
each individual control measure
Soil solarization - Answer: Used to increase species of bacteria known
to be natural enemies of soil-borne pathogens
Fungal diseases - Answer: Usually occurs naturally and helps control
aphids
Geese - Answer: Used for controlling weedy grasses in cotton,
orchards, and vineyards
, Smother Crops - Answer: Used to Suppress weeds and yield cash crop
at the same time
Tillage and Cultivation - Answer: Used to kill weeds disrupt life cycle of
some insects pests, and bury disease inoculum
Which of the following are considered benefits of pest monitoring?
(select all that apply) - Answer: -Observing seasonal changes in pest
populations
-proper timing of pesticide applications
-Assessing the effectiveness of pest control measures
Which of the following is a disadvantage of using common names for
identifying organisms? - Answer: They provide little information about
the relationship of one organism to another
What is MOST likely to cause your pest control efforts to fail - Answer:
Spraying a pesticide prior to the Pest's most vulnerable life stage
A stomach poison applied to the upper surface of leaves will fail to
control insect if - Answer: They feed on underside of the leaf
MEXICAN LEAFHOPPER (Empoasca mexara) - Answer: Alfalfa
Plant Agriculture Comprehensive Questions
(Frequently Tested) and Complete Solutions
Graded A+
In what ways can insects be used to control weeds? - Answer: The are
vectors, transmitting disease organisms to plants.
How does crop rotation help control nematode populations - Answer:
Populations will fall if the nematode species has a narrow host range
and requires a living host to survive in the soil.
Select the drawbacks of planting transgenic crops on a pest
management plant. (choose all that apply.) - Answer: -An increase in
pesticide usage
-The emergence of secondary pest problem
-repeated use of the same pesticide in an area
-weeds that develop resistance to the same pesticide as the crop
Which of the following are TRUE about host-plant resistance to
nematode infestation. (select all that apply) - Answer: -Nematode-
resistant plants are best used in a combination with other management
techniques, such as crop rotation and farrowing.
-A plant that is resistant to nematode pest may be susceptible to one or
more alternate pest that live and breed nearby
,-Nematode-resistant plants are a very cost-efficient way to manage
pest nematode species in fields, orchards, or vineyards
A disease resistant cultivar may still become infected when - Answer:
Plants become Physically stressed by overwatering or nutrient
deficiencies.
Using transgenic plants without employing other IPM methods may
increase a pest's - Answer: Resistance to the inserted genes
Why do integrated pest management programs work better than
relying on just one management method - Answer: A diversity of
approaches to managing pest increases the long-term effectiveness of
each individual control measure
Soil solarization - Answer: Used to increase species of bacteria known
to be natural enemies of soil-borne pathogens
Fungal diseases - Answer: Usually occurs naturally and helps control
aphids
Geese - Answer: Used for controlling weedy grasses in cotton,
orchards, and vineyards
, Smother Crops - Answer: Used to Suppress weeds and yield cash crop
at the same time
Tillage and Cultivation - Answer: Used to kill weeds disrupt life cycle of
some insects pests, and bury disease inoculum
Which of the following are considered benefits of pest monitoring?
(select all that apply) - Answer: -Observing seasonal changes in pest
populations
-proper timing of pesticide applications
-Assessing the effectiveness of pest control measures
Which of the following is a disadvantage of using common names for
identifying organisms? - Answer: They provide little information about
the relationship of one organism to another
What is MOST likely to cause your pest control efforts to fail - Answer:
Spraying a pesticide prior to the Pest's most vulnerable life stage
A stomach poison applied to the upper surface of leaves will fail to
control insect if - Answer: They feed on underside of the leaf
MEXICAN LEAFHOPPER (Empoasca mexara) - Answer: Alfalfa
