Tag: plant diseases

Questions Related to plant diseases

Multiple choice plant diseases keeping diseases away biology

With reference to the introduction of plant disease into India from other countries, consider the following pairs.
a. Bunchy top of banana- Ceylon(Sri Lanka)
b. Potato tuber moth- Italy
c. Flag sumut of wheat- Fiji
Which of the pairs is/are correctly matched?

  1. $1$ and $2$ only
  2. $2$ only
  3. $1$ and $3$ only
  4. $1, 2$ and $3$
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Bunchy top of banana was introduced from Sri Lanka (1), and the Potato tuber moth was introduced from Italy (2). Flag smut of wheat was not introduced from Fiji.

Multiple choice plant diseases keeping diseases away biology

Leaf hopper which acts as a vector in. The transmission of Tungro virus disease of rice is?

  1. Sagatella orizicola

  2. Inazuma dorsalis

  3. Nilaparvata lugans

  4. Nephotettix impicticeps

Reveal answer Fill a bubble to check yourself
A Correct answer
Multiple choice plant diseases keeping diseases away biology

Match List I(Name of plant disease) with List II(Name of Pathogen) and select the correct answer.

List-I List-II
a. Angular leaf spot of cotton $1$. Phytophora infestans
b. Late blight of potato $2$. Colletotrichum falcatum
c. Red rot of sugarcane $3$. Cercospora personata
d. Tikka leaf spot of groundnut $4$. Xanthornonas malvacearum
  1. A-$3$, B-$1$, C-$4$, D-$2$
  2. A-$4$, B-$1$, C-$2$, D-$3$
  3. A-$3$, B-$4$, C-$2$, D-$1$
  4. A-$4$, B-$2$, C-$1$, D-$3$
Reveal answer Fill a bubble to check yourself
A Correct answer
Multiple choice plant diseases keeping diseases away biology

Which one of the following complexes is responsible for the cause of Tundu disease in wheat?

  1. Fungus-nematode

  2. Nematode-bacterium

  3. Fungus-bacterium

  4. Virus-fungus

Reveal answer Fill a bubble to check yourself
A Correct answer
Multiple choice plant diseases keeping diseases away biology

Consider the following:
1. Bacillus subtilis                 2. Trichadiama viride
3. erysiphe graminis             4. Septoria glycines
Which of the above antagonistic orgaanisms is /are capable of suppressing plant disease?

  1. 1 and 2

  2. 2 and 3

  3. 2, 3 and 4

  4. 1 only

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Bacillus subtilis and Trichoderma viride are well-documented biological control agents used to suppress various plant pathogens.

Multiple choice plant diseases keeping diseases away biology

Match List-I with List-II and select the correct answer using the codes given the lists.

List-I(Disease) List-II(Pathogen)
a. Bacterial blight of paddy $1$. Pseudomonas
b. Brown rot of potato $2$. Corynebacterium
c. Tundu disease of wheat $3$. Erwinia
d. Fire blight of apples $4$. Xanthomonas
  1. A-$1$, B-$2$, C-$3$, D-$4$
  2. A-$4$, B-$1$, C-$2$, D-$3$
  3. A-$3$, B-$2$, C-$1$, D-$4$
  4. A-$2$, B-$3$, C-$4$, D-$1$
Reveal answer Fill a bubble to check yourself
A Correct answer