Question

Under what conditions do Phytophthora root and stem rots occur?

Q: Answer-Under what conditions do Phytophthora root and stem rots occur?

Phytophthora root and stem rots cause damage to their hosts in nearly every part of the world where the soil becomes too wet for the good growth of susceptible plants and the temperature remains fairly low, i.e., between 15 and 23C.

A When the soil is too dry

B When the temperature is too high

C When the soil is too wet and the temperature is between 15 and 23°C

D When the soil is too alkaline

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Under what conditions do Phytophthora root and stem rots occur?

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