CDFA IPM Exam 2024 (Revised)
2,4-D is used to control? - ANSWER annual broadleaf weeds in crops
Spry Oil Properties - ANSWER High Viscosity in Summer with high heat: Less Phytotoxic Low Viscosity in
Winter with low heat: Heavier Oil
Page | 1
What is 2-4D amine? - ANSWER Salt
What are IGR? - ANSWER Insect Growth Regulators, Mimic natural hormones and interfere with growth
Herbicides adsorbs/binds to which kind of soil? - ANSWER Soil with high organic/clay content
and Low pH, high temperature
Year of earliest bio control? - ANSWER 1200AD
Biological control became popular in 1962 with release of which book? - ANSWER Silent
spring
Which years during WWI was pesticide research done? - ANSWER 1939-1945
What is Direct and Indirect damage in plants? - ANSWER Direct damage: Feed on part of crop we
use
Indirect damage: Feed on part of plant we do not use
How is Tristeza on citrus avoided? - ANSWER Use tristeza free material
American Fourbrood (AFB) is caused by what? - ANSWER Spore forming Paenibacillus larvae ssp. /
most most widespread and destructive of brood diseases
Africanized honey bees are considered what? - ANSWER Agressive
The alfalfa butterfly parasite attack: ( early instars, later instars or eggs) - ANSWER Early
instars
Alligator Wee, Rating - ANSWER A
Anticoagulant baits are used because why? - ANSWER The don't develop resistance in animals
Where are anticoagulants placed for mice and rats? - ANSWER Placed in bait boxes ( not
STUDYGUIDESOLUTIONS
, CDFA IPM Exam 2024 (Revised)
scattered)
How are Ants a problem? - ANSWER Eat tender new growth, nuisance ALL THE ABOVE
Which are considered Pests of bee hives? - ANSWER Verroa and Tracheal mites, raccoons, small hive
Page | 2 beetle, ants, bears, skunks and mice
An appeal by a beekeepers is to What? - ANSWER Take sample with inspector jointly and send a
written appeal to CDFA secretary
Arrhentoky - ANSWER Form of parthenogenesis where unfertilized eggs develop into males
Ash and other trees are affected by what during cool springs? - ANSWER Anthracnose
Augmentative control is defined as? - ANSWER Supplementing the numbers of naturally occurring
beneficial populations with mass-reared insects
Inoculative control (Augmentative) - ANSWER Release of beneficial is made on the crop ONCE during
season. Control is ensured for rest of season by their offsprings.
Inundative control (Augmentative) - ANSWER Releases are planned when pests are only controlled by
released beneficials themselves. More frequent releases are necessary.
Bats are in general? - ANSWER Insectivorous
Bees pollinate what crops in desert regions? - ANSWER Alfalfa
Bees pollinate which crops in arid regions of CA, NV and AZ? - ANSWER Cotton/Alfalfa
Biocontrol of musk thistle: Eats what part of the plant? (Seed head, stems or leaves) - ANSWER See head
Bio Control on citrus has been effective for all the following except for? - ANSWER Citrus
Blackfly
The bio control trichogramma wasp controls what? - ANSWER Parasitizes insect eggs
Black tailed jack rabbit: (game animal or non game animal) - ANSWER Game animal
Botrytis characteristics and control - ANSWER Characteristic: Fungus overwinters as sclerotia in berry
mummies on the ground or hanging on vines and in canes. Spore production occur in spring. Infections may occur during
bloom should rains occur. Late infections are most severe when RH exceeds 92%.
Control: Good coverage of fungicides on canopy. Using cultural control methods like leaf removal, using resistant varieties.
STUDYGUIDESOLUTIONS
2,4-D is used to control? - ANSWER annual broadleaf weeds in crops
Spry Oil Properties - ANSWER High Viscosity in Summer with high heat: Less Phytotoxic Low Viscosity in
Winter with low heat: Heavier Oil
Page | 1
What is 2-4D amine? - ANSWER Salt
What are IGR? - ANSWER Insect Growth Regulators, Mimic natural hormones and interfere with growth
Herbicides adsorbs/binds to which kind of soil? - ANSWER Soil with high organic/clay content
and Low pH, high temperature
Year of earliest bio control? - ANSWER 1200AD
Biological control became popular in 1962 with release of which book? - ANSWER Silent
spring
Which years during WWI was pesticide research done? - ANSWER 1939-1945
What is Direct and Indirect damage in plants? - ANSWER Direct damage: Feed on part of crop we
use
Indirect damage: Feed on part of plant we do not use
How is Tristeza on citrus avoided? - ANSWER Use tristeza free material
American Fourbrood (AFB) is caused by what? - ANSWER Spore forming Paenibacillus larvae ssp. /
most most widespread and destructive of brood diseases
Africanized honey bees are considered what? - ANSWER Agressive
The alfalfa butterfly parasite attack: ( early instars, later instars or eggs) - ANSWER Early
instars
Alligator Wee, Rating - ANSWER A
Anticoagulant baits are used because why? - ANSWER The don't develop resistance in animals
Where are anticoagulants placed for mice and rats? - ANSWER Placed in bait boxes ( not
STUDYGUIDESOLUTIONS
, CDFA IPM Exam 2024 (Revised)
scattered)
How are Ants a problem? - ANSWER Eat tender new growth, nuisance ALL THE ABOVE
Which are considered Pests of bee hives? - ANSWER Verroa and Tracheal mites, raccoons, small hive
Page | 2 beetle, ants, bears, skunks and mice
An appeal by a beekeepers is to What? - ANSWER Take sample with inspector jointly and send a
written appeal to CDFA secretary
Arrhentoky - ANSWER Form of parthenogenesis where unfertilized eggs develop into males
Ash and other trees are affected by what during cool springs? - ANSWER Anthracnose
Augmentative control is defined as? - ANSWER Supplementing the numbers of naturally occurring
beneficial populations with mass-reared insects
Inoculative control (Augmentative) - ANSWER Release of beneficial is made on the crop ONCE during
season. Control is ensured for rest of season by their offsprings.
Inundative control (Augmentative) - ANSWER Releases are planned when pests are only controlled by
released beneficials themselves. More frequent releases are necessary.
Bats are in general? - ANSWER Insectivorous
Bees pollinate what crops in desert regions? - ANSWER Alfalfa
Bees pollinate which crops in arid regions of CA, NV and AZ? - ANSWER Cotton/Alfalfa
Biocontrol of musk thistle: Eats what part of the plant? (Seed head, stems or leaves) - ANSWER See head
Bio Control on citrus has been effective for all the following except for? - ANSWER Citrus
Blackfly
The bio control trichogramma wasp controls what? - ANSWER Parasitizes insect eggs
Black tailed jack rabbit: (game animal or non game animal) - ANSWER Game animal
Botrytis characteristics and control - ANSWER Characteristic: Fungus overwinters as sclerotia in berry
mummies on the ground or hanging on vines and in canes. Spore production occur in spring. Infections may occur during
bloom should rains occur. Late infections are most severe when RH exceeds 92%.
Control: Good coverage of fungicides on canopy. Using cultural control methods like leaf removal, using resistant varieties.
STUDYGUIDESOLUTIONS
