Question

what do you understand by symptoms of tree disease​

Answer 1

Answer:

Signs are changes produced by pathogen tissues (e.g., white rust). Symptoms are how plants suffer from infections (e.g., defoliation, crown thinning, decay, wilt, etc.). Using change detection technology, foresters can understand when woods are stressed.

Explanation:

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Answer 2

Explanation:

A symptom of plant disease is a visible effect of disease on the plant. Symptoms may include a detectable change in color, shape or function of the plant as it responds to the pathogen. Leaf wilting is a typical symptom of verticilium wilt, caused by the fungal plant pathogens Verticillium albo-atrum and V.