Fusarium Head Blight

Question 1

What kind of a disease is fusarium head blight?

Answer 1

Fungal Disease

Question 2

What is the causal agent for Fusarium Head Blight?

Answer 2

Fusarium graminearum

Question 3

What are some symptoms of fusarium head blight?

Answer 3

1. The entire head or a few spikelets can bleach prematurely and appear shrunken.
2. Seeds may have pinkish discoloration.
3. Orange or pink fungus ma .y appear on infected spikelets

Question 4

What do you call kernels infected with FHB that may appear bleached and shrunken?

Answer 4

Tombstone Kernels

Question 5

Where does FBH overwinter?

Answer 5

Stubble and Seed

Question 6

What crops are affected by FHB?

Answer 6

Several cereal crops such as Corn, Barley, Oats, and Wheat.

Question 7

What are some other hosts of FHB?

Answer 7

Weedy grasses.

Question 8

What spores are a part of the FHB life cycle?

Answer 8

Ascospores and Conidia spores.

Question 9

Where do the ascospores form?

Answer 9

Perithesium

Question 10

How far can ascospores travel?

Answer 10

Many kilometers through the wind.

Question 11

How do conidia spores spread?

Answer 11

They disperse over short distances through rain splashes.

Question 12

What is the favorable condition for FHB?

Answer 12

Warm and Humid conditions. Most important during time of flowering as name implies.

Question 13

What the six effects of Mycotoxin deoxynivalenol (DON) on animal health?

Answer 13

Vomiting
Diarrhea
Food Refusal
Decreased feed intake
Abortion
Dermal and Oral lesions

Question 14

How much feed intake is reduced for every 1ppm DON found in the diet?

Answer 14

7.5%

Question 15

What are 5 effects of DON in plants?

Answer 15

1. Chlorosis Necrosis
2. Inhibit program cell death (PCD)
3. Disrupt membrane integrity
4. Disrupt cell division
5. Inhibit protein synthesis.

Question 16

How can we control FHB by using some cultural practices?

Answer 16

1. Rotation with non-host crops
2. Residue management
3. Seed cleaning to remove infected kernels.

Question 17

What are some foliar fungicides used to control FHB?

Answer 17

1. Caramba
2. Proline
3. Prosaro
4. Folicur

Question 18

Do fungicides provide total control against FHB?

Answer 18

No fungicide gives total control. Need to follow right timing of application to get better results.

Question 19

Are there any completely resistant spring wheat varieties available?

Answer 19

No. They are either MR, I, MS or S.

Question 20

Are there any completely resistant winter wheat varieties available?

Answer 20

Winter wheat variety Emerson is Rated resistant (R) to fusarium head blight.

Question 21

What is the number one disease in barley?

Answer 21

FHB