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Citrus Alternaria Brown Spot Quiz

Total questions: 10

Worksheet time: 5mins

Name
Class
Date
1.

What is a recommended practice for establishing new citrus plantings to prevent Alternaria brown spot?

a)

Use of overhead irrigation

b)

Planting in low areas

c)

Use of disease-free nursery stock

d)

Frequent fertilization

2.

What is the effect of severe Alternaria brown spot on citrus fruits?

a)

Enhanced fruit sweetness

b)

Extensive fruit drop

c)

Increased fruit size

d)

Improved fruit color

3.

How often should fungicide applications be made during April and May?

a)

Every 5 days

b)

Every 10 days or as infrequently as once per month

c)

Every 2 days

d)

Every 15 days

4.

What is a potential downside of using copper fungicides during hot weather?

a)

They may enhance fruit flavor

b)

They may blemish the fruit

c)

They may increase fruit size

d)

They may improve fruit color

5.

What is the recommended action if high levels of infection occur on the spring flush?

a)

Apply fungicides immediately

b)

Increase irrigation

c)

Reduce sunlight exposure

d)

Increase fertilization

6.

What is the purpose of the ALTER-RATER model?

a)

To predict fruit size

b)

To determine the severity of brown spot

c)

To enhance fruit color

d)

To improve taste

7.

What is the recommended rate of copper per acre for mature trees?

a)

50 gallons of water

b)

125 gallons of water

c)

200 gallons of water

d)

300 gallons of water

8.

What is the FRAC MOA code for copper fungicide?

a)

M 03

b)

11/3

c)

11/7

d)

M 01

9.

According to Table 1, what is the daily points assigned when there is no rainfall, no leaf wetness, and average daily temperature is less than 68°F?

a)

11

b)

8

c)

6

d)

0

10.

What is the FRAC MOA code for Pristine?

a)

11/3

b)

11/7

c)

M 01

d)

M 03