iCEV fungal (review 13)
What is the proper humidity level to store onions to prevent onion neck rot?
75 percent
Which pesticide is NOT used against early blight?
Azadiractin
Which is NOT considered a non-living agent?
Bacteria
Which type of disease enters the plant through wounds or natural openings?
Bacterial
Which of the following is NOT a treatment for fungal diseases?
Burn surrounding vegetation
Which is NOT a step in the life cycle of a bacteria?
Cell replication
What disease needs a pH below 7.2 in order to grow?
Clubroot
Which of the following conditions is needed for apple scab to occur?
Cool spring weather
Downy mildew thrives in which of the following environmental conditions?
Cool, wet weather
Corn smut can be controlled using which element?
Copper
In which plant is gray leaf spot most common?
Corn
Which of the following crops does verticillium wilt NOT affect?
Corn
Which plant can be affected by boll rot?
Cotton
Which prevention method will NOT protect against powdery mildew?
Crop rotation
Which disease effects seeds before, during and after germination?
Damping off
Which is NOT an environmental condition needed for ergots to form?
Dry soil
Which of the following is NOT a characteristic of cedar-apple rust?
Enters through the root system
Which of the following is NOT an environmental condition of wirestem?
Extreme winds
Gray mold (botrytis) is also referred to as which of the following?
Fruit rot
Which of the following is an appropriate treatment method for corn leaf blight?
Fungicide which contains mancozeb
Which condition is NOT needed for late blight to grow?
High winds
Which landscape plant is affected by phomopsis blight?
Juniper
How can anthracnose be prevented?
Keep foliage dry
Mildews is which of the following?
Mold
Which disease is usually accompanied by a foul odor?
Onion Neck root
Which prevention method is used for crown rot?
Providing adequate soil drainage
How does farsarium wilt enter the plant?
Roots
Which fungicide can be used to treat black rot?
Spectracide Immunox®
Which plant can alternaria leaf spot be found on?
Squash
Charcoal rot has similar symptoms to which other disease?
Stalk rot
Where do the symptoms of soybean rust first appear?
Underside of bottom leaves
Which environmental conditions can cause fursarium stalk rot?
Warm weather, insects, drought
What weather conditions are ideal for corn leaf blight?
Wet, humid conditions
What color are the lesions caused by onion leaf blight?
White
How is rust spread?
Wind
