Fungal Disease Prevention — 5 Rules That Eliminate Most Problems

Fungal Prevention — Better to Prevent Than Treat

Fungal diseases need three things: a pathogen, a susceptible plant, and suitable conditions. We have limited influence on the first two. On conditions — enormous.

5 rules that eliminate most fungal diseases:

1. Dry leaves — always
Fungi develop on wet leaves. Water only at the roots, always in the morning. This one rule eliminates powdery mildew, alternaria, gray mold, and blight all at once.

2. Good ventilation
Dense planting = humid microclimate between plants. Follow minimum planting distances. Remove leaves at ground level — air must circulate.

3. Not too much nitrogen
Nitrogen fertilizers cause lush, soft, succulent growth. Fungi love soft plant tissue. Balanced fertilizing = harder plant = more resistant.

4. Crop rotation
Don't plant the same plant family in the same place year after year. Pathogens overwinter in soil and multiply.

5. Remove plant debris
After the season, collect all diseased plant debris. Only healthy tissues go to compost. Diseased ones — to trash or bonfire.

Bonus: Resistant varieties. When choosing seeds and seedlings, look for resistance markings to specific diseases — especially important for tomatoes and cucumbers.

zielnamanufaktura.pl