Georgia Pesticide Exam Study Guide Latest Update 2024 200 Questions and 100% Verified Correct Answers Guaranteed A+ A plant has the following symptoms. Yellow bands form around the leaf veins, and the plant is stunted. What is the most likely cause for this disease?
a) Nematode
- virus
- fungus
d) bacterium - CORRECT ANSWER: B.
Anthracnose, scab, leaf blotch, and shot hole are examples of which kind of plant disease?
- Leaf spots
- virus
- stem blights
d. wilts - CORRECT ANSWER: a
Disease symptoms and signs are caused by interaction between:
- host plant and pathogen
- the pathogen and the environment
- the environment and the plant
d. all of the above - CORRECT ANSWER: d
For plant diseases, what does the term "contagious" mean?
- the disease can be passed from plant to plant
- the disease is caused by mechanical injury that occurs all the way down the row
- the disease can cause complete crop loss
- the disease occurs harmlessly in the soil until a susceptible crop is planted -
CORRECT ANSWER: a
Fusarium wilt is often caused by an interaction between what two organisms?
- nematodes and fungi
- nematodes and bacteria
- nematodes and virus
d. all of the above - CORRECT ANSWER: a
Groundwater contamination is the most likely when pesticides are applied to what kind soil?
- clay soil
- soil with large amount of organic
- loamy soil
d. sandy soil - CORRECT ANSWER: d
How can you avoid back-siphoning when you are filling a tank with hose? 1 / 3
- leave an air gap between the hose and the liquid in the tank
- fill the tank completely. Adjust the amount of pesticide added to maintain proper mix.
- allow the hose to completely drain into the tank before you remove the hose -
b.keep the end of the hose near bottom of the spray tank during the fill process
CORRECT ANSWER: a
How can you reduce the risk of pytotoxicity?
- apply pesticides during bright, hot weather to ensure quick drying
- mix pesticides together to reduce the total number of applications
- use highly concentrated applications to avoid excessive water on the plants
- avoid application of pesticides to plants under environmental stress - CORRECT
ANSWER: d
If you double the effective spray width, how is the spray application rate affected?
- the rate is doubled
- the rate is increased four times
- the rate is decreased by 1/2
d. the rate is unchanged - CORRECT ANSWER: c
If you double the ground speed of the sprayer, how does the new speed affect the amount of pesticide being applied?
- the amount of pesticide applied is not changed
- the amount of pesticide is decreased by 50% or (1/2)
- the amount of pesticide is also doubled
- the amount of pesticide applied is reduced by the square of the new speed -
CORRECT ANSWER: b
If you wish to double the flow rate, how much would you have to increase the spray pressure?
- increase pressure 50%
- double the pressure
- increase the pressure four times
d. decrease the pressure by 50% - CORRECT ANSWER: c
Injury from triazine herbicides if similar to injury from substituted ureas because they have the same mode of action. What is their mode action?
- inhibition of photosynthesis
- inhibition of leaf expansion
- inhibition of lipid synthesis
d. inhibition of amino acid synthesis - CORRECT ANSWER: a
Leaching can result in groundwater contamination. What is leaching?
- movement of pesticide down through the soil
- movement of pesticide along surface of the soil until it reaches a well or sink-hole
- movement of pesticide back through a hose or irrigation equipment. 2 / 3
- movement of pesticide from nonpoint sources into surface drinking water that rises
from an underground spring - CORRECT ANSWER: a
Mosaic patterns, vein banding, and ring spots would indicate what type of plant disease?
- viral infection
- bacterial infection
- nematodes
d. fungal disease - CORRECT ANSWER: a
Moths and butterflies are often serious plant pests. Which life stage of the moth/butterfly causes damage?
- the adult
- the larva
- the pupa
- all life stages can cause plant damage if population is high - CORRECT ANSWER: b
Pest resistance to pesticides is an important problem. How can you help to avoid pest resistance?
- Plant the same crops in the same field as often as possible
- stick wih one kind of pesticide throughout the entire season unless it is no longer
- create a refuge to maintain a susceptible population of pests
effective
d. use a broad spectrum pesticide whenever possible - CORRECT ANSWER: c or d???
Pesticide storage, mixing, and rinsing activities should be at least this far from a well.
- 25 ft
- 50 ft
- 75 ft
d. 100 ft - CORRECT ANSWER: d
Protecting groundwater from contamination is important because Georgia citizens depend on groundwater as the source for drinking water.What percentage of Georgia citizens get their drinking water from groundwater sources?
- 15%-25%
b.35%-45% c.55%-65%
d. 65%-75% - CORRECT ANSWER: d. 65%-75%
Reducing selection pressure is a good way to manage resistance to pesticides. How can you reduce selection pressure?
- apply broad spectrum insecticides whenever possible
- apply broad spectrum herbicides whenever possible
- reduce pesticide rate whenever possible
- increase frequency of pesticide application whenever possible - CORRECT
ANSWER: c
- / 3