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Mildew

Plasmopara Viticola

Pathogen:

Oomycete

Type:

Risk:

INTERMEDIATE

DESCRIPCIÓN

Descripción del patógeno

Downy mildew is a disease caused by fungi of the genus Peronospora, one of the most common being Peronospora sparsa. This pathogen affects a wide variety of plants, including cannabis. It manifests itself as pale yellow Taches on the leaves, which eventually turn into necrotic Taches surrounded by a yellow halo, and finally into a powdery white mold on the underside of the leaves.

Descripción de la enfermedad

In cannabis, downy mildew can cause yellow Taches on the leaves, which then turn brown and necrotic. These Taches can spread quickly, covering large areas of the plant. Additionally, a white, powdery mold can be seen on the underside of infected leaves, indicating an advanced infestation.

TEMPERATURA Y HUMEDAD

15°C - 25°C

80% - 95%

VÍAS DE TRANSMISIÓN

Wind, raindrops, direct contact with infected plants, transportation of contaminated plant material.

Tratamientos químicos

CONTROL

• ORANGE OIL 6% [SL] P/V
• ORANGE OIL 60g/L [ME] P/S
• AZOXISTROBIN 25% [SC] P/V
• COS-OGA 1.25% [SL] P/V
• FOSETIL-AL 80% [WG] P/P
• POTASSIUM PHOSPHONATES 51% (Exp. as phosphorous acid) [SL] P/V
• CUPRIC HYDROXIDE 13.6% (EXPR. IN CU) + COPPER OXYCHLORIDE 13.6% (EXPR. IN CU) [SC] P/V
• LAMINARIN 4.5% [SL] P/S
• MANDIPROPAMID 25% [SC] P/V

Tratamientos autorizados en agricultura ecológica

• ORANGE OIL 6% [SL] P/V
• ORANGE OIL 60g/L [ME] P/S
• COS-OGA 1.25% [SL] P/V
• CUPRIC HYDROXIDE 13.6% (EXPR. IN CU) + COPPER OXYCHLORIDE 13.6% (EXPR. IN CU) [SC] P/V
• LAMINARIN 4.5% [SL] P/S

Biological control

Preventive treatments

• AZOXISTROBIN 25% [SC] P/V
• FOSETIL-AL 80% [WG] P/P
• POTASSIUM PHOSPHONATES 51% (Exp. as phosphorous acid) [SL] P/V
• CUPRIC HYDROXIDE 13.6% (EXPR. IN CU) + COPPER OXYCHLORIDE 13.6% (EXPR. IN CU) [SC] P/V
• LAMINARIN 4.5% [SL] P/S
• MANDIPROPAMID 25% [SC] P/V

To prevent and control mildew in cannabis crops, it is recommended to implement preventive measures such as maintaining good soil drainage, avoiding excess watering and high humidity, and providing adequate air circulation around the plants. Crop rotation and removal of infected plants are also advised to prevent the spread of the pathogen.

Recomendaciones

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*Los tratamientos recomendados no dejan de ser recomendaciones según las bases de datos de las autoridades y en ningún momento sustituyen las directrices marcadas según la legislación de cada país