Question 22
Observe the Fig.2.1 and answer the questions that follows.

(a) Write the name of the disease
(b) Name the causative agent of this disease?
(c) How does the disease spread from one plant to another?(d) Name any two plant diseases and the microbes that cause them.

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Solution

(a) Yellow vein mosaic of lady’s finger/okra/ bhindi.
(b) Virus
(c) The disease spreads from one plant to another through insects
(d) (i) Citrus canker caused by bacteria
(ii) Rust of wheat caused by fungus

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Question 22
Observe the Fig.2.1 and answer the questions that follows.

(a) Write the name of the disease

(b) Name the causative agent of this disease?

(d) Name any two plant diseases and the microbes that cause them.

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Virus

Standard IX Biology

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Question 22 Observe the Fig.2.1 and answer the questions that follows. (a) Write the name of the disease (b) Name the causative agent of this disease? (c) How does the disease spread from one plant to another?(d) Name any two plant diseases and the microbes that cause them.

(a) Yellow vein mosaic of lady’s finger/okra/ bhindi. (b) Virus (c) The disease spreads from one plant to another through insects (d) (i) Citrus canker caused by bacteria (ii) Rust of wheat caused by fungus

Question 22
Observe the Fig.2.1 and answer the questions that follows.

(a) Write the name of the disease
(b) Name the causative agent of this disease?
(c) How does the disease spread from one plant to another?(d) Name any two plant diseases and the microbes that cause them.

(a) Yellow vein mosaic of lady’s finger/okra/ bhindi.
(b) Virus
(c) The disease spreads from one plant to another through insects
(d) (i) Citrus canker caused by bacteria
(ii) Rust of wheat caused by fungus