Hektar

Disease Symptoms:

• The characteristic symptom appears on fruits as wet spots of varying shapes and sizes, often with a concentric zoned pattern.
• Under high atmospheric humidity (in greenhouses) or during rainfall (in open fields), the affected surface develops an abundant gray fluff, representing the fungal fruiting bodies.
• Frequently, this fungus can also attack flowers, causing a characteristic gray fluff to appear, followed shortly by flower drop.

Favorable Factors for Disease Development:

• Temperatures between 15-20°C, atmospheric humidity above 95%, and precipitation are active factors triggering gray mold.
• The fungus spreads in crops via air currents, rain, or sprinkler irrigation.

Prevention and Control Measures:

1. Cultural Hygiene:

   • Regular removal of infected leaves and fruits.
   • Timely defoliation of plants to ensure proper air circulation.
   • Adequate greenhouse ventilation to prevent condensation on foliage, which favors gray mold development.

2. Chemical Prevention and Control:

   • Alternative treatments recommended for controlling Botrytis cinerea include:
     • Ortiva Top (0.1%)
     • Teldor 500 SC (0.08%)
     • Signum (0.15%)
     • Pyrus (0.15%)
     • Prolectus (0.08-0.12%)
     • Difcor 250 EC (0.05%)

3. Ecological Products:

   • As an alternative to conventional chemical treatments, ecological products such as the following can be used:
     • Algasil
     • Altosan
     • Mimox
     • Prev-AM
     • Evobor