PESTICIDE APPLICATION TEST GUIDE (ORNAMENTAL PEST
CONTROL) QUESTIONS AND 100% VERIFIED ANSWERS |
GRADED A+ | GUARANTEED PASS!!
A chemical may be low in toxicity but present a hazard because it:
- answer-Is normally used in a concentrated form
Is rapidly absorbed or inhaled
Is used frequently by untrained persons who become exposed to it
A pesticide may be extremely toxic, but present little hazard to the applicator or
others when used:
- answer-In a very dilute formulation
In a formulation that is not readily absorbed through the skin or inhaled
Only occasionally and under conditions to which human beings are not exposed
Only by experienced applicators who are properly equipped to handle the chemical
safely
Bacterial diseases of woody plants
- answer-Ash yellows
Best way to prevent back siphoning?
- answer-Maintain an air gap between the water supply and the pesticide tank
Can you ever say that any pesticide is totally safe?
- answer-No
Canker diseases of woody plants
- answer-Cytospora/Leucostoma canker
Hypoxylon canker
Tubercularia and Nectria cankers
Carbamates
- answer-broad-spectrum pesticide, including carbaryl (Sevin)
widely used and are less persistent than chlorinated hydrocarbons, but still can
affect the nervous system and cause birth defects
,Derived from nerve gas, but less toxic
Causes of abiotic disorders
- answer-Moisture imbalance
Nutrient imbalance
Temp extremes
Chemicals
Cultural practices
Characteristics of arthropods
- answer-Segmented body
Jointed appendages
Exoskeleton
Molting
Chlorinated Hydrocarbons
- answer-pesticide including DDT (illegal in US), chlordane, lindane endosulfan,
and mirex
are broad-spectrum insecticides that have been banned or restricted in many
countries because they cause cancer and birth defects
Suspected carcinogen & endocrine disruptor
Does not break down easily in the environment
Complete metamorphosis
- answer-Insect development consists of 4 stages: egg, larva, pupa, and adult
Typically, larvae and adults are very different in appearance, habitat, and behavior
Economic threshold
- answer-Point at which the economic loss caused by pest damage outweighs the
cost of applying a pesticide.
Freezing temperature damage
- answer-Bark splitting
Distortions
Flower abortion
Death of buds
Fungal diseases of woody plants
- answer-Anthracnose
Oak leaf blister
, Powdery mildew
Septoria leaf spot
Marssonina blight
Needle spot
Apple scab
Fungicides control
- answer-Fungi
Herbicides control
- answer-Weeds
How can bacteria enter a plant host?
- answer-They need injuries or natural openings
How do insecticidal oils control insects?
- answer-Insects obtain oxygen through spiracles, so plugging those openings can
cause death
Bt enters the digestive system and breaks down the gut lining
How do neonicotinoids affect insects and bees?
- answer-It disrupts the nervous system
How do you control spray drift?
- answer-Have small droplet size (decrease pressure, increase orifice size), watch
wind speed and direction, some spray adjuvants
How do you test for compatibility of 2 or more products?
- answer-Perform the jar test. Fill a jar with some water and proportionate amounts
of each product to be mixed. Vigorously mix the jar and let it set for 15 minutes
How does moisture affect disease development?
- answer-It affects the host by inducing new growth that may be more susceptible
or resistant to infection
How does organic matter in the soil affect leaching?
- answer-Higher organic matter reduces the chance of leaching by holding onto
water
CONTROL) QUESTIONS AND 100% VERIFIED ANSWERS |
GRADED A+ | GUARANTEED PASS!!
A chemical may be low in toxicity but present a hazard because it:
- answer-Is normally used in a concentrated form
Is rapidly absorbed or inhaled
Is used frequently by untrained persons who become exposed to it
A pesticide may be extremely toxic, but present little hazard to the applicator or
others when used:
- answer-In a very dilute formulation
In a formulation that is not readily absorbed through the skin or inhaled
Only occasionally and under conditions to which human beings are not exposed
Only by experienced applicators who are properly equipped to handle the chemical
safely
Bacterial diseases of woody plants
- answer-Ash yellows
Best way to prevent back siphoning?
- answer-Maintain an air gap between the water supply and the pesticide tank
Can you ever say that any pesticide is totally safe?
- answer-No
Canker diseases of woody plants
- answer-Cytospora/Leucostoma canker
Hypoxylon canker
Tubercularia and Nectria cankers
Carbamates
- answer-broad-spectrum pesticide, including carbaryl (Sevin)
widely used and are less persistent than chlorinated hydrocarbons, but still can
affect the nervous system and cause birth defects
,Derived from nerve gas, but less toxic
Causes of abiotic disorders
- answer-Moisture imbalance
Nutrient imbalance
Temp extremes
Chemicals
Cultural practices
Characteristics of arthropods
- answer-Segmented body
Jointed appendages
Exoskeleton
Molting
Chlorinated Hydrocarbons
- answer-pesticide including DDT (illegal in US), chlordane, lindane endosulfan,
and mirex
are broad-spectrum insecticides that have been banned or restricted in many
countries because they cause cancer and birth defects
Suspected carcinogen & endocrine disruptor
Does not break down easily in the environment
Complete metamorphosis
- answer-Insect development consists of 4 stages: egg, larva, pupa, and adult
Typically, larvae and adults are very different in appearance, habitat, and behavior
Economic threshold
- answer-Point at which the economic loss caused by pest damage outweighs the
cost of applying a pesticide.
Freezing temperature damage
- answer-Bark splitting
Distortions
Flower abortion
Death of buds
Fungal diseases of woody plants
- answer-Anthracnose
Oak leaf blister
, Powdery mildew
Septoria leaf spot
Marssonina blight
Needle spot
Apple scab
Fungicides control
- answer-Fungi
Herbicides control
- answer-Weeds
How can bacteria enter a plant host?
- answer-They need injuries or natural openings
How do insecticidal oils control insects?
- answer-Insects obtain oxygen through spiracles, so plugging those openings can
cause death
Bt enters the digestive system and breaks down the gut lining
How do neonicotinoids affect insects and bees?
- answer-It disrupts the nervous system
How do you control spray drift?
- answer-Have small droplet size (decrease pressure, increase orifice size), watch
wind speed and direction, some spray adjuvants
How do you test for compatibility of 2 or more products?
- answer-Perform the jar test. Fill a jar with some water and proportionate amounts
of each product to be mixed. Vigorously mix the jar and let it set for 15 minutes
How does moisture affect disease development?
- answer-It affects the host by inducing new growth that may be more susceptible
or resistant to infection
How does organic matter in the soil affect leaching?
- answer-Higher organic matter reduces the chance of leaching by holding onto
water
