Damage symptoms
Pestalotiopsis longisetula causes symptoms on leaves and petioles. The symptoms are small necrotic spots which can develop into dark lesions with black dots. The fungus seems also able to cause fruit rot.
General
New diseases in strawberry have been ascribed to Pestalotiopsis clavispora in the case of root and crown rot (of strawberry), first found in The Netherlands, and Pestalotiopsis longisetula in the case of leaf spots, such as leaf spot of strawberry and fruit rot reported mainly from Brazil. The genus is quite complex, so the taxonomy may change. Pestalotiopsis clavispora is also called Neopestalotiopsis clavispora.
Biological solutions for Leaf spot of strawberry
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Life cycle and appearance of Leaf spot of strawberry
Not much is known about the life cycle. The fungus produces ascospores and conidia, but their role in the epidemic has not yet been established.
How to prevent Leaf spot of strawberry
- Avoid stress:
- Take runner tips at the right stage to avoid stress and make plants less susceptible
- Avoid extreme temperatures and water levels in rootzone Avoid overhead irrigation, since it seems to increase disease development
- Provide balanced nutrition
- Avoid damage to the plants by pest insects or plant handling
- Take hygienic measures:
- Remove any infected plants in a plastic bag
- Clean trays, tools, gutters etc. between subsequent crops
- Disinfect water used for irrigation
Prevent plant diseases by optimizing plant potential and crop resilience.