Anthracnose of Lime


Anthracnose of Lime

Glomerella acutata


In a Nutshell

    Necrotic spots on leaves that may result in a shot-hole effectSeverely infected young shoots and leaves are entirely blighted and dropYoung fruits also drop prematurelyLate infections cause deep lesions and distortion of fruits

Hosts: %1$s

· Citrus


Lime anthracnose affects flowers, young leaves and fruits, and lesions range from small spots that can expand to cover large areas. Leaves and fruit often shed and twigs are killed, resulting in "withertip" symptoms. Foliar symptoms are visible as necrotic spots that may result in a shot-hole effect if the necrotic areas fall out. In severe infections the leaves and entire young shoots can become totally blighted and drop. In addition, shoot tips may die back and leaf deformation may occur. Infection of young fruit usually results in premature fruit drop. Late infections produce lesions that are often large and deep and accompanied by fruit distortion.


The epidemiology of this disease has not been completely studied. Lime anthracnose survives from season to season on dead twigs and in lesions on mature leaves. It only infects young tissues following spore dispersal by water splash. The constant leaf flushing of limes together with the large amount of infectious matter that can be produced on these tissues, make lime anthracnose difficult to control.

Biological Control

Sorry, we don't know of any alternative treatment against Glomerella acutata . Please get in touch with us in case you know of something that might help to fight this disease. We are looking forward to hearing from you.

Chemical Control

Always consider an integrated approach with preventive measures together with biological treatments if available. Fungicides based on benomyl, captafol, captan, maneb and ferbam can provide effective treatment against Glomerella acutata. Start treatment at flowering stage.

Preventive Measures

    Grow resistant varieties if availableUse seeds from healthy plants or from certified sourcesCheck seedlings for leaf spots before plantingMonitor the orchard regularly for signs of the diseaseRemove or burn field waste after harvestEnsure sufficient space between lime trees to increase ventilation


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