Q759
The optimum temperature for the attack of foot rot of papaya (Pythium aphanidermatum) is
A.
32°C
B.
28°C
C.
22°C
D.
36°C
AnswerAnswer: Option D
Solution
Answer: Option D
Solution:
The optimum temperature for the attack of foot rot of papaya (Pythium aphanidermatum) is 36°C.Stem rot caused by Pythium aphanidermatum is commonly noticed in 2 to 3 year old trees. This fungal disease usually appears during the rainy season and its severity increases with the intensity of rainfall. Optimum temperature of 36°C is favourble for disease development.