1C- CROP DISEASE MANAGEMENT IOWA
PESTICIDE 2024-2025 QUESTIONS
WITH VERIFIED SOLUTIONS
What is important to know when calibrating a sprayer - CORRECT ANSWER
nozzle flow rate
travel speed
effective spray width
Mix Chemical at least ______ feet from wells - CORRECT ANSWER 50
Cleaning sprayer equipment - CORRECT ANSWER clean with water and
household ammonia or commercial tank cleaner
do not mix ammonia and bleach
What is the FRAC code? - CORRECT ANSWER mode of action
______ may be more severe if there is bright hot and dry weather that is followed
by cool weather - CORRECT ANSWER phototoxicity
two common groups of fungicide in iowa - CORRECT ANSWER Strobilurin,
Triazole
Where do pathogens grow in the summer and over winter? - CORRECT ANSWER
mild climates- overwinter in the south and area carried north by the wind
, 1C- CROP DISEASE MANAGEMENT IOWA
PESTICIDE 2024-2025 QUESTIONS
WITH VERIFIED SOLUTIONS
Crop history that can help diagnose a plant problem includes - CORRECT
ANSWER previous crop
current soil test
planting date, depth and conditions
chemicals used
variety and source of seed
how do susceptible plants come in contact with inoculum? - CORRECT ANSWER
must come in contact
seeds planted in the soil that contains a pathogen
Dissemination- spread through wind, water, infected plant material, or insect
vectors
Symptoms that develop as a result of a disease - CORRECT ANSWER leaf spot
or blight, yellowing or reddening of plant tissues
visible effects of a plant disease on the host plant are called ____ - CORRECT
ANSWER symptoms
viruses transmitted by insects are called _____ - CORRECT ANSWER vectors
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