MySheen

What is the symptom of big leaf yellow poplar gray spot disease?

Published: 2024-11-22 Author: mysheen
Last Updated: 2024/11/22, Symptoms of gray spot of Populus tomentosa: occurs on the leaves of Populus tomentosa. The small chlorotic macula appeared on the infected leaves at the initial stage, and then gradually expanded into irregular spots, showing gray, grayish white or irrigated yellow. The boundary between the sick and the healthy is often brown or dark brown everywhere, and the edges are often raised. In the later stage, several disease spots are often linked together, accounting for 1/2 to 1/3 of the total leaf area. when the damage is serious, the diseased leaves can fall off in the same year and even cause the branches to die.

Symptoms of gray spot of Populus tomentosa: occurs on the leaves of Populus tomentosa. The small chlorotic macula appeared on the infected leaves at the initial stage, and then gradually expanded into irregular spots, showing gray, grayish white or irrigated yellow. The boundary between the sick and the healthy is often brown or dark brown everywhere, and the edges are often raised. In the later stage, several disease spots are often linked together, accounting for 1/2 to 1/3 of the total leaf area. when the damage is serious, the diseased leaves can fall off in the same year and even cause the branches to die.

 
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