CDFA IPM EXAM WITH COMPLETE SOLUTIONS 100% CORRECT
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 what type 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 what book? - ANSWER Silent
spring
What years of WWII 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
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
,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 scattered)
What is a secondary pest? - ANSWER Pest that are often well controlled by natural
enemies that do not receive pesticide applications.
Shot Hole fungus affects what crops? - ANSWER Peach, Apricot and Nectarine
Skeleton weed flowers are what colour? - ANSWER yellow
Advantage of soil tillage? - ANSWER Tillage or cultivation my kill weeds, disrupt life
cycle of some pests and bury disease inoculum, may also expose pests to dessication
Which pest occurs in Citrus in Southern California? - ANSWER European Brown Snall
Spray until wet means? - ANSWER spray to saturation or thoroughly spray plant
,Which animal successfully controls weeds? (Ducks, geese, goats) - ANSWER Goats
Starlings damage what crops in SUMMER and WINTER? - ANSWER SUMMER: Field
Crops, Soft Crops
WINTER: Nuts, Fruit and Grain Crops
What is superparasitism? - ANSWER Parasitization of host by more than one parasitic
individual of same species.
What are suppressive methods? - ANSWER Reduce existing populations to tolerable
levels, augmentative biocontrol, mowing or cultivating weeds, pesticide sprays
Thelyotoky is? - ANSWER Females are produced from unfertilized eggs. Ex. Aphids
What is translocation? - ANSWER Transfer of food or product photosynthesis within
the plant. (Phloem)
What is transpiration? - ANSWER Loss of water from the plant through evaporation at
leaf surface. (Xylem)
Control method for hull rot in Almonds? - ANSWER NO FUNGICIDES, Use irrigation
management, fertilizer management
treatment of armallaria root rot is? - ANSWER Fumigation with methyl bromide
Applying an 80% wettable powder and spraying 15 acres at 10lb/acre, how much
chemical would you use? - ANSWER 15*10=150/.80=187.50lbs
Verticillium Wilt - ANSWER Verticillium survives in the soil as microsclerotia in the soil
, that germinate in the vicinity of roots. Disease severity depends on the number of root
penetrations. Verticillium wilt is favored by cool air and soil temperatures.
Vineyard is expanded to riverbank. How is Pierce's disease prevented? - ANSWER
Tolerant Rootstock
Volcanic shaped mounds are made by? - ANSWER Moles
Voles prefer what environment? - ANSWER prefer irrigated grassy areas in Central
valley
Attack Bark of Tree
Control method for Walnut Blight? - ANSWER Protective copper sulfate spray
Wasps with thin petiole are? - ANSWER Mud Daubers
Wettable powder is? - ANSWER Powder suspended in water (WP)
What aphid causes damage to cotton? - ANSWER Cotton aphid, Aphis gossypii
What are vibrissae? - ANSWER whiskers
scotch thistle size? - ANSWER Several feet wide, 12-25ft tall
What do you do with a beehive that is infested with with AFB? - ANSWER Burned or
Buried,
Bottom boards, covers, boxes can be scorched and reused
If you have a bee colony that is diseased, what do you really have to salvage? -
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 what type 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 what book? - ANSWER Silent
spring
What years of WWII 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
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
,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 scattered)
What is a secondary pest? - ANSWER Pest that are often well controlled by natural
enemies that do not receive pesticide applications.
Shot Hole fungus affects what crops? - ANSWER Peach, Apricot and Nectarine
Skeleton weed flowers are what colour? - ANSWER yellow
Advantage of soil tillage? - ANSWER Tillage or cultivation my kill weeds, disrupt life
cycle of some pests and bury disease inoculum, may also expose pests to dessication
Which pest occurs in Citrus in Southern California? - ANSWER European Brown Snall
Spray until wet means? - ANSWER spray to saturation or thoroughly spray plant
,Which animal successfully controls weeds? (Ducks, geese, goats) - ANSWER Goats
Starlings damage what crops in SUMMER and WINTER? - ANSWER SUMMER: Field
Crops, Soft Crops
WINTER: Nuts, Fruit and Grain Crops
What is superparasitism? - ANSWER Parasitization of host by more than one parasitic
individual of same species.
What are suppressive methods? - ANSWER Reduce existing populations to tolerable
levels, augmentative biocontrol, mowing or cultivating weeds, pesticide sprays
Thelyotoky is? - ANSWER Females are produced from unfertilized eggs. Ex. Aphids
What is translocation? - ANSWER Transfer of food or product photosynthesis within
the plant. (Phloem)
What is transpiration? - ANSWER Loss of water from the plant through evaporation at
leaf surface. (Xylem)
Control method for hull rot in Almonds? - ANSWER NO FUNGICIDES, Use irrigation
management, fertilizer management
treatment of armallaria root rot is? - ANSWER Fumigation with methyl bromide
Applying an 80% wettable powder and spraying 15 acres at 10lb/acre, how much
chemical would you use? - ANSWER 15*10=150/.80=187.50lbs
Verticillium Wilt - ANSWER Verticillium survives in the soil as microsclerotia in the soil
, that germinate in the vicinity of roots. Disease severity depends on the number of root
penetrations. Verticillium wilt is favored by cool air and soil temperatures.
Vineyard is expanded to riverbank. How is Pierce's disease prevented? - ANSWER
Tolerant Rootstock
Volcanic shaped mounds are made by? - ANSWER Moles
Voles prefer what environment? - ANSWER prefer irrigated grassy areas in Central
valley
Attack Bark of Tree
Control method for Walnut Blight? - ANSWER Protective copper sulfate spray
Wasps with thin petiole are? - ANSWER Mud Daubers
Wettable powder is? - ANSWER Powder suspended in water (WP)
What aphid causes damage to cotton? - ANSWER Cotton aphid, Aphis gossypii
What are vibrissae? - ANSWER whiskers
scotch thistle size? - ANSWER Several feet wide, 12-25ft tall
What do you do with a beehive that is infested with with AFB? - ANSWER Burned or
Buried,
Bottom boards, covers, boxes can be scorched and reused
If you have a bee colony that is diseased, what do you really have to salvage? -
