Mildiu
WHAT IS AND HOW TO ELIMINATE
Mildew
Peronospora Destructor
Pathogen:
Oomycete
Type:
Risk to the plant:
INTERMEDIATE
DESCRIPTION
WHO CAUSES IT?
The pathogen Peronospora destructor is an oomycete that causes the disease known as downy mildew on onion (Allium cepa) and other plants in the Alliaceae family. This disease is one of the most prevalent and destructive diseases that affect onion crops around the world, generating significant losses in the yields and quality of the bulbs.
SYMPTOMS
The disease that occurs in onions manifests itself with the appearance of pale yellow leaf Taches on the leaves of the plant, which then turn a dark brown tone and are covered with a white, cottony mycelium on the underside of the leaves. . In addition, deformations of the leaves and a general weakening of the plant can be observed.
TEMPERATURE AND HUMIDITY
15 ºC - 25ºC
90% - 100%
HOW IS IT SPREAD?
Contaminated irrigation water, wind-borne spores, direct contact, infected crop residues, vegetative propagation, contaminated agricultural tools.
HOW TO REMOVE IT?
Home remedies
There are no home treatments
Chemical treatments
• AZOXISTROBIN 20% + DIFENOCONAZOLE 12.5% [SC] P/V
• AZOXISTROBIN 25% [SC] P/V
• CIAZOFAMIDE 16% [SC] P/V
• CYMOXANIL 3% + CUPROCALCIC SULFATE 22.5% (EXPR. IN CU) [WP] P/P
• CYMOXANIL 45% [WG] P/P
• FLUOXASTROBIN 10% + PROTHIOCONAZOLE 10% [EC] P/V
• CUPRIC HYDROXIDE 13.6% (EXPR. IN CU) + COPPER OXYCHLORIDE 13.6% (EXPR. IN CU) [SC] P/V
• OXATIAPIPROLIN 10% [OD] P/V
• COPPER OXYCHLORIDE 14% (exp. in Cu) + CUPRIC HYDROXIDE 14% (exp. in Cu) [WG] P/P
• COPPER OXYCHLORIDE 25% (EXPR. IN CU) [WG] P/P
• COPPER OXYCHLORIDE 30% (EXPR. IN CU) [WP] P/P
• COPPER OXYCHLORIDE 35% (exp. in Cu) [WG] P/P
• COPPER OXYCHLORIDE 35% (EXPR. IN CU) [WG] P/P
• COPPER OXYCHLORIDE 37.5% (EXPR. IN CU) [WG] P/P
• COPPER OXYCHLORIDE 38% (EXPR. IN CU) [SC] P/V
• COPPER OXYCHLORIDE 50% (EXPR. IN CU) [WG] P/P
• COPPER OXYCHLORIDE 50% (EXPR. IN CU) [WP] P/P
• COPPER OXYCHLORIDE 52% (EXPR. IN CU) [SC] P/V
• COPPER OXYCHLORIDE 70% (EXPR. IN CU) [SC] P/V
• CUPROUS OXIDE 50% (EXPR. IN CU) [WP] P/P
• CUPROUS OXIDE 75% (EXPR. IN CU) [WG] P/P
• PROPAMOCARB 52.5% (HYDROCHLORIDE) + FLUOPICOLIDE 6.25% [SC] P/V
• CUPROCALCIC SULFATE 12.4% (EXPR. IN CU) [SC] P/V
• CUPROCALCIC SULFATE 20% (EXPR. IN CU) [WG] P/P
• CUPROCALCIC SULFATE 20% (EXPR. IN CU) [WP] P/P
• CUPROCALCIC SULFATE 20% (EXPR. IN CU) [WG] P/P
• CUPROCALCIC SULFATE 20% [WP] P/P
• TRIBASIC COPPER SULFATE 19% (EXPR. IN CU) [SC] P/V
• TRIBASIC COPPER SULFATE 40% (EXPR. IN CU) [WG] P/P
• VALIPHENALATE 6% + COPPER OXYCHLORIDE 15% (exp. as Cu) + CUPRIC HYDROXIDE 15% (exp. as Cu) [WG] P/P
Authorized treatments in organic farming
• CUPRIC HYDROXIDE 13.6% (EXPR. IN CU) + COPPER OXYCHLORIDE 13.6% (EXPR. IN CU) [SC] P/V
• COPPER OXYCHLORIDE 14% (exp. in Cu) + CUPRIC HYDROXIDE 14% (exp. in Cu) [WG] P/P
• COPPER OXYCHLORIDE 25% (EXPR. IN CU) [WG] P/P
• COPPER OXYCHLORIDE 30% (EXPR. IN CU) [WP] P/P
• COPPER OXYCHLORIDE 35% (exp. in Cu) [WG] P/P
• COPPER OXYCHLORIDE 35% (EXPR. IN CU) [WG] P/P
• COPPER OXYCHLORIDE 37.5% (EXPR. IN CU) [WG] P/P
• COPPER OXYCHLORIDE 38% (EXPR. IN CU) [SC] P/V
• COPPER OXYCHLORIDE 50% (EXPR. IN CU) [WG] P/P
• COPPER OXYCHLORIDE 50% (EXPR. IN CU) [WP] P/P
• COPPER OXYCHLORIDE 52% (EXPR. IN CU) [SC] P/V
• COPPER OXYCHLORIDE 70% (EXPR. IN CU) [SC] P/V
• CUPROUS OXIDE 50% (EXPR. IN CU) [WP] P/P
• CUPROUS OXIDE 75% (EXPR. IN CU) [WG] P/P
• CUPROCALCIC SULFATE 12.4% (EXPR. IN CU) [SC] P/V
• CUPROCALCIC SULFATE 20% (EXPR. IN CU) [WG] P/P
• CUPROCALCIC SULFATE 20% (EXPR. IN CU) [WP] P/P
• CUPROCALCIC SULFATE 20% (EXPR. IN CU) [WG] P/P
• CUPROCALCIC SULFATE 20% [WP] P/P
• TRIBASIC COPPER SULFATE 19% (EXPR. IN CU) [SC] P/V
• TRIBASIC COPPER SULFATE 40% (EXPR. IN CU) [WG] P/P
Insect allies
EFFECTIVE PRODUCTS TO ELIMINATE THIS PEST
Sponsored link
Sponsored link
Sponsored link
Sponsored link
Sponsored link
Sponsored link
Effective against all types of fungi
To prevent and control downy mildew in onion crops, it is recommended to implement integrated disease management practices, such as crop rotation, use of resistant varieties, weed control, and application of preventive fungicides. In addition, it is important to maintain good ventilation in the crop and avoid excess moisture in the soil.
Recommendations
Enjoy idMicrobe TOTALLY FREE, with no trial periods.
