CDFA ENVIRONMENTAL MONITORING &
INVESTIGATION EXAM QUESTIONS AND
ANSWERS 2024/2025 A COMPLETE SOLUTION
ALL ANSWERS CORRECT CONFIRMED BEST RATED
A+ FOR PASS
Which is a vector of Pierce's Disease on the Central Valley - CORRECT ANSWERS
red headed sharpshooter
How do you manage Branch and Twig Borer - CORRECT ANSWERS remove and
burn all dead wood and bush in and around vineyard, prune out any dead
canes and damaged vines early in spring, examine pruning cuts for exit holes
and frass
Which pest requires a microscope to view and identify - CORRECT ANSWERS
two-spotted mite
Grape Bud Beetles are difficult to control because - CORRECT ANSWERS
they're only active at night
Why is anagrus epos a more effective parasite for grape leafhopper eggs than
variegated leafhopper eggs - CORRECT ANSWERS difference on behavior
having to do with egg placement
What is the best control for Botrytis Bunch Rot during the growing season -
CORRECT ANSWERS remove leaves from canopy
Grape Mealybug was a problem in the 1920s and then not a problem in the
1960s with phasing out of DDT and then again a problem with the use pf
organophosphates. What is the reason for this fluctuation - CORRECT ANSWERS
because pesticide changes affect natural controls
, CDFA ENVIRONMENTAL MONITORING &
INVESTIGATION EXAM QUESTIONS AND
ANSWERS 2024/2025 A COMPLETE SOLUTION
ALL ANSWERS CORRECT CONFIRMED BEST RATED
A+ FOR PASS
What is the best way to help prevent and manage Pierce's Disease when going
to new location - CORRECT ANSWERS plant resistant varieties
What is the reason for the failure of trichogramma a a parasite against coddling
moth - CORRECT ANSWERS trichogramma reduced by natural control before
enough eggs could be parasitized
Which of the following is the best management for Eutypa Dieback - CORRECT
ANSWERS prune in spring so wounds dry
What is the best method for treatment of Oak Root Fungus - CORRECT
ANSWERS chemical fumigation
What disease can only be treated by preplant soil fumigation - CORRECT
ANSWERS Armillaria Root Rot
What is the life cycle of a perennial weed - CORRECT ANSWERS mature in
summer, senesce in fall, and underground parts overwinter
What is the best control for powdery mildew - CORRECT ANSWERS sulfur dust
Which of the following actions can be referred as cultural control - CORRECT
ANSWERS plant resistant varieties
INVESTIGATION EXAM QUESTIONS AND
ANSWERS 2024/2025 A COMPLETE SOLUTION
ALL ANSWERS CORRECT CONFIRMED BEST RATED
A+ FOR PASS
Which is a vector of Pierce's Disease on the Central Valley - CORRECT ANSWERS
red headed sharpshooter
How do you manage Branch and Twig Borer - CORRECT ANSWERS remove and
burn all dead wood and bush in and around vineyard, prune out any dead
canes and damaged vines early in spring, examine pruning cuts for exit holes
and frass
Which pest requires a microscope to view and identify - CORRECT ANSWERS
two-spotted mite
Grape Bud Beetles are difficult to control because - CORRECT ANSWERS
they're only active at night
Why is anagrus epos a more effective parasite for grape leafhopper eggs than
variegated leafhopper eggs - CORRECT ANSWERS difference on behavior
having to do with egg placement
What is the best control for Botrytis Bunch Rot during the growing season -
CORRECT ANSWERS remove leaves from canopy
Grape Mealybug was a problem in the 1920s and then not a problem in the
1960s with phasing out of DDT and then again a problem with the use pf
organophosphates. What is the reason for this fluctuation - CORRECT ANSWERS
because pesticide changes affect natural controls
, CDFA ENVIRONMENTAL MONITORING &
INVESTIGATION EXAM QUESTIONS AND
ANSWERS 2024/2025 A COMPLETE SOLUTION
ALL ANSWERS CORRECT CONFIRMED BEST RATED
A+ FOR PASS
What is the best way to help prevent and manage Pierce's Disease when going
to new location - CORRECT ANSWERS plant resistant varieties
What is the reason for the failure of trichogramma a a parasite against coddling
moth - CORRECT ANSWERS trichogramma reduced by natural control before
enough eggs could be parasitized
Which of the following is the best management for Eutypa Dieback - CORRECT
ANSWERS prune in spring so wounds dry
What is the best method for treatment of Oak Root Fungus - CORRECT
ANSWERS chemical fumigation
What disease can only be treated by preplant soil fumigation - CORRECT
ANSWERS Armillaria Root Rot
What is the life cycle of a perennial weed - CORRECT ANSWERS mature in
summer, senesce in fall, and underground parts overwinter
What is the best control for powdery mildew - CORRECT ANSWERS sulfur dust
Which of the following actions can be referred as cultural control - CORRECT
ANSWERS plant resistant varieties
