Which weed acts as an alternate host for blast disease in rice?
Rice blast is caused by Magnaporthe oryzae.
Some weeds harbor the pathogen during off-season.
Echinochloa colona commonly acts as an alternate host. This helps disease survival and spread.
Thus, weed management is essential. Therefore, option (b) is correct.
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Which weed acts as an alternate host for blast disease in rice?
Rice blast is characterized with
Consider the following statements:
I. Sulphur is the oldest fungicide used in plant disease control.
II. Sulphur is a contact and protective fungicide effective against powdery mildews and rusts.
| List I (Element) |
List II (Symptoms) |
| a. Zn |
I. Pahala blight of sugarcane |
| b. Fe |
II. Hidden Hunger |
| c. Mn |
III. Interveinal chlorosis |
| d. K |
IV. Khaira disease |
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