First report of Pestalotiopsis clavata, P. chamaeropis and P. lushanensis causing shoot blight on Cedrus deodara in China

IF 2.5 2区农林科学 Q1 AGRONOMY Crop Protection Pub Date : 2025-01-15 DOI:10.1016/j.cropro.2025.107119

Lin Rui , Wei-Liang Kong , Jian-Ren Ye , Xiao-Qin Wu

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Abstract

Cedrus deodara, a tree species native to the slopes of the Himalayas, has been widely cultivated for timber and ornamental purpose in China. In September 2024, blight shoots of C. deodara were commonly noticed in Nanjing City, Jiangsu Province, China, with an incidence rate of 67%. This disease reduces not only the growth but also the ornamental and economic value of affected C. deodara. Disease symptoms displayed as yellow brown and easily detached needles, even causing entire young shoots become dry and withered. To determine this leaf spot disease, morphological identification, multi-locus sequence analyses and pathogenicity test were performed. The results showed that the pathogens were Pestalotiopsis clavata, P. chamaeropis and P. lushanensis and this is the first report of the three species causing shoot blight on C. deodara in China. This study contributes to identify and control shoot blight on C. deodara, providing reference basis.

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clavata拟盘多毛孢、chamaeropis拟盘多毛孢和芦山拟盘多毛孢在中国引起雪松梢枯病的首次报道

雪松（cedus deodara）是一种原产于喜马拉雅山脉山坡的树种，在中国被广泛种植，用于木材和观赏用途。2024年9月，中国江苏省南京市常见病发白僵苗，发病率为67%。此病不仅降低了受影响的木蠹的生长，而且降低了其观赏价值和经济价值。疾病症状表现为黄褐色和容易脱落的针叶，甚至导致整个幼芽变得干燥和枯萎。通过形态学鉴定、多位点序列分析和致病性试验确定了该叶斑病。结果表明，三种病原菌分别为克拉瓦拟盘多毛孢、chamaeropis拟盘多毛孢和芦山拟盘多毛孢，这是国内首次报道的三种病原菌。本研究可为白僵菌的鉴定和防治提供参考依据。

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来源期刊

Crop Protection 农林科学-农艺学

CiteScore

6.10

自引率

3.60%

发文量

200

审稿时长

29 days

期刊介绍： The Editors of Crop Protection especially welcome papers describing an interdisciplinary approach showing how different control strategies can be integrated into practical pest management programs, covering high and low input agricultural systems worldwide. Crop Protection particularly emphasizes the practical aspects of control in the field and for protected crops, and includes work which may lead in the near future to more effective control. The journal does not duplicate the many existing excellent biological science journals, which deal mainly with the more fundamental aspects of plant pathology, applied zoology and weed science. Crop Protection covers all practical aspects of pest, disease and weed control, including the following topics: -Abiotic damage- Agronomic control methods- Assessment of pest and disease damage- Molecular methods for the detection and assessment of pests and diseases- Biological control- Biorational pesticides- Control of animal pests of world crops- Control of diseases of crop plants caused by microorganisms- Control of weeds and integrated management- Economic considerations- Effects of plant growth regulators- Environmental benefits of reduced pesticide use- Environmental effects of pesticides- Epidemiology of pests and diseases in relation to control- GM Crops, and genetic engineering applications- Importance and control of postharvest crop losses- Integrated control- Interrelationships and compatibility among different control strategies- Invasive species as they relate to implications for crop protection- Pesticide application methods- Pest management- Phytobiomes for pest and disease control- Resistance management- Sampling and monitoring schemes for diseases, nematodes, pests and weeds.

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