Micosis/Hongos
Phomopsis
Phomopsis Prunorum / Diaporthe Eres / Phomopsis Mali
Pathogen:
Fungus
Type:
Risk to the plant:
INTERMEDIATE
DESCRIPTION
WHO CAUSES IT?
Phomopsis prunorum, also known as Diaporthe estars or Phomopsis mali, is a phytopathogenic fungus that causes diseases in fruit trees, especially apple trees, and produces the disease known as phomopsis. The fungus spreads primarily through spores (conidia) that are dispersed through the air, infecting new plants. The fungus can survive in the remains of infected plants, in the soil, and on the woody branches of trees.
SYMPTOMS
Phomopsis in apple trees manifests itself with the appearance of dark, sunken lesions on branches, stems and shoots, which can cause cankers and dieback on the branches. The disease can weaken the plant and reduce its productivity.
• Dark, sunken lesions on branches, stems and shoots.
• Cankers and dieback on branches.
• General weakening of the plant and reduction in the quality and quantity of the harvest.
TEMPERATURE AND HUMIDITY
18°C - 25°C
70% - 90%
HOW IS IT SPREAD?
Air, contact with infected plants, plant debris, tools
HOW TO REMOVE IT?
Home remedies
There are no home treatments
Chemical treatments
• COPPER OXYCHLORIDE 35% (exp. in Cu) [WG] P/P
• COPPER OXYCHLORIDE 38% (EXPR. IN CU) [SC] P/V
• COPPER OXYCHLORIDE 50% (EXPR. IN CU) [WP] P/P
Treatments allowed in organic farming
• COPPER OXYCHLORIDE 35% (exp. in Cu) [WG] P/P
• COPPER OXYCHLORIDE 38% (EXPR. IN CU) [SC] P/V
• COPPER OXYCHLORIDE 50% (EXPR. IN CU) [WP] P/P
Insect allies
PREDATORY MITES
LADYBUGS
LACEWINGS
PARASITIC WASPS
HOVERFLIES OR PARASITIC FLIES
PREDATORY BUGS
There are no natural allies
Mycodiplosis oidii (predatory mosquito)
EFFECTIVE PRODUCTS TO ELIMINATE THIS DISEASE
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• Use apple tree varieties resistant or tolerant to Phomopsis prunorum.
• Practice proper pruning to remove infected parts and improve air circulation.
• Disinfect pruning tools and equipment to prevent the spread of the fungus.
• Apply specific fungicides following local recommendations.
• Avoid excess humidity in crops, maintaining good irrigation management.
• Carry out regular monitoring to detect and eliminate infected plants.
Recommendations
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