California Applicator License Category D
PLANT AGRICULTURE Exam
In what ways can insects be used to control weeds? - Correct Answers -The are
vectors, transmitting disease organisms to plants.
How does crop rotation help control nematode populations - Correct Answers -
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.) - Correct Answers --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) - Correct Answers --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
Uneven spray pattern - Correct Answers -The pressure setting does not match the
operating range of the nozzles
Which of the following chemigation systems should you use if you want to reduce drift
and increase accuracy of pesticide application - Correct Answers -Micro-irrigation
systems
an easy way to reduce pesticide drift is to discontinue spraying when wind speeds
exceed - Correct Answers -7 mph
A disease resistant cultivar may still become infected when - Correct Answers -Plants
become Physically stressed by overwatering or nutrient deficiencies.
Using transgenic plants without employing other IPM methods may increase a pest's -
Correct Answers -Resistance to the inserted genes
, Why do integrated pest management programs work better than relying on just one
management method - Correct Answers -A diversity of approaches to managing pest
increases the long-term effectiveness of each individual control measure
Soil solarization - Correct Answers -Used to increase species of bacteria known to be
natural enemies of soil-borne pathogens
Fungal diseases - Correct Answers -Usually occurs naturally and helps control aphids
Geese - Correct Answers -Used for controlling weedy grasses in cotton, orchards, and
vineyards
Smother Crops - Correct Answers -Used to Suppress weeds and yield cash crop at the
same time
Tillage and Cultivation - Correct Answers -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)
- Correct Answers --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? - Correct Answers -They provide little information about the relationship of
one organism to another
What is MOST likely to cause your pest control efforts to fail - Correct Answers -
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 -
Correct Answers -They feed on underside of the leaf
MEXICAN LEAFHOPPER (Empoasca mexara) - Correct Answers -Alfalfa
Banks grass mite (Oligonychus partensis) - Correct Answers -Small grains and Corn
Dothiorella canker (Botrysphaeria spp. and Fusicoccum spp.) - Correct Answers -
Avacado
Banded-winged whitefly (Trialeurodes abutilonia) - Correct Answers -Tomato, alfalfa,
cotton
Alternaria Leafspot (Alternaria brassicae A. brassicicola) - Correct Answers -Cole Crops
PLANT AGRICULTURE Exam
In what ways can insects be used to control weeds? - Correct Answers -The are
vectors, transmitting disease organisms to plants.
How does crop rotation help control nematode populations - Correct Answers -
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.) - Correct Answers --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) - Correct Answers --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
Uneven spray pattern - Correct Answers -The pressure setting does not match the
operating range of the nozzles
Which of the following chemigation systems should you use if you want to reduce drift
and increase accuracy of pesticide application - Correct Answers -Micro-irrigation
systems
an easy way to reduce pesticide drift is to discontinue spraying when wind speeds
exceed - Correct Answers -7 mph
A disease resistant cultivar may still become infected when - Correct Answers -Plants
become Physically stressed by overwatering or nutrient deficiencies.
Using transgenic plants without employing other IPM methods may increase a pest's -
Correct Answers -Resistance to the inserted genes
, Why do integrated pest management programs work better than relying on just one
management method - Correct Answers -A diversity of approaches to managing pest
increases the long-term effectiveness of each individual control measure
Soil solarization - Correct Answers -Used to increase species of bacteria known to be
natural enemies of soil-borne pathogens
Fungal diseases - Correct Answers -Usually occurs naturally and helps control aphids
Geese - Correct Answers -Used for controlling weedy grasses in cotton, orchards, and
vineyards
Smother Crops - Correct Answers -Used to Suppress weeds and yield cash crop at the
same time
Tillage and Cultivation - Correct Answers -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)
- Correct Answers --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? - Correct Answers -They provide little information about the relationship of
one organism to another
What is MOST likely to cause your pest control efforts to fail - Correct Answers -
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 -
Correct Answers -They feed on underside of the leaf
MEXICAN LEAFHOPPER (Empoasca mexara) - Correct Answers -Alfalfa
Banks grass mite (Oligonychus partensis) - Correct Answers -Small grains and Corn
Dothiorella canker (Botrysphaeria spp. and Fusicoccum spp.) - Correct Answers -
Avacado
Banded-winged whitefly (Trialeurodes abutilonia) - Correct Answers -Tomato, alfalfa,
cotton
Alternaria Leafspot (Alternaria brassicae A. brassicicola) - Correct Answers -Cole Crops
