Study on Influencing Factors and Low-Temperature Treatment of Walnut Canker Disease in Hotan County, Xinjiang
Year: 2025
Type: article
Abstract: The aim of this study was to investigate the factors affecting the occurrence of walnut canker disease and the effect of low-temperature treatment on its occurrence in Hotan County, and provide a theoretical basis for the prevention and control of the disease. The occurrence of canker disease was investigated in walnut plantations of different varieties, plant and row spacing, and diameter at breast height (DBH) from April to August of 2023 and 2024. In laboratory research, the spread area of disease spots on isolated branches of peach was studied under different temperature treatments and different treatment times. The occurrences of walnut canker for the two consecutive years were basically the same. The number of new lesions showed an upward trend in April and May and reached its highest in May. The number of new lesions tended to stabilize in June and July in Hotan County. The walnut variety with more severe disease was “Xinfeng”. The disease was most serious in plots with plant spacing and row spacing of 10 m × 7 m. The DBH of the more susceptible walnut trees was >30 cm. Low-temperature treatment and treatment time had a significant impact on the walnut canker lesion expansion area (p < 0.05). The key factor in lesion expansion was low temperature. The maximum lesion expansion area was 1.70 × 104 mm2 under treatment at 20 °C for 5 h. The walnut variety and the plant and row spacing were the key factors affecting the occurrence of walnut canker disease, with low temperature being the main factor affecting its spread.
Source: Forests
DOI: 10.3390/f16050728
Authors: Hongtao Sun, Wuerkaixi Yali, Wenyao Wang, Nureya Zupaila, Lili Wang, Rong Ma
Institutions: Xinjiang Agricultural University, Xinjiang University
Language: English
Subfield: Cell Biology
Domain: Life Sciences
SDG: Zero hunger
Open Access status: gold
Estimated APC paid: $3,137
OpenAlex ID: W4409766955