Diseases - Ch. 3

Question 1

What are the microscopic organisms that most often cause biotic plant diseases? Plants, fragments, pathogens, none of the above

Answer 1

PATHOGENS

Question 2

What are the three factors of the plant disease triangle? Host, plant, environment; Host, pathogen, environment; Host, pathogen, water; Three sides

Answer 2

HOST, PATHOGEN, ENVIRONMENT

Question 3

Which pesticide should a person apply to control black spot of rose? Fungicide, Insecticide, Nematicide, Hebicide

Answer 3

Fungicide

Question 4

In primarily what conditions does powdery mildew become a problem? Warm & humid/Warm & dry/Cool & Dry/Cool & Humid

Answer 4

COOL & DRY

Question 5

What are the symptoms that oak wilt causes on live oak leaves? Chlorosis & Fall Formation/Tip burn & Black Spots/Vein chlorosis & Tip burn/Mold & Tip burn

Answer 5

VEIN CHLOROSIS & TIP BURN

Question 6

What disease commonly infects photinia and indian hawthorn? Phytophthora aerial blight/Botrytis gray mold/downy mildew/entomosporium leaf spot

Answer 6

Entomosporium leaf spot

Question 7

What types of organisms grow together to form lichens? Nematodes & Fungi/Fungi & Algae/Cat & Dog/Bacteria & Algae

Answer 7

FUNGI & ALGAE

Question 8

TRUE OR FALSE: Cultural practices such as proper irrigation, mowing height, and nitrogen application can greatly affect large patch

Answer 8

TRUE

Question 9

Where does the fungus that causes take-all root rot live? In the air/In the soil/In the water/On mowers

Answer 9

IN THE SOIL

Question 10

In addition to dark green rings, what does fairy ring often produce? Mushrooms, Moss, Mildew, None of the above

Answer 10

MUSHROOMS