Crop Disease Prevention: Wilts, Blights & Mildews

What causes wilt in crops?

Wilt is caused by soil-borne fungi (like Fusarium) or bacteria that block the plant's water-transporting xylem vessels, causing it to dry up.

What is the CRI stage in wheat?

Crown Root Initiation, which occurs 21 days after sowing. It is the most critical stage for watering wheat crops.

How does Trichoderma viride prevent root diseases?

It is a beneficial fungus that grows around plant roots, outcompeting and eating harmful pathogens that cause root rot and wilt.

What is the difference between powdery and downy mildew?

Powdery mildew forms white dust on the upper leaf surface in dry conditions. Downy mildew forms grey patches on the leaf underside in humid conditions.

How does crop rotation prevent diseases?

By planting different crop families annually, you break the life cycle of pests and pathogens that host on specific crops.

What is damping-off in nurseries?

A fungal disease that attacks young seedlings at the soil level, causing them to rot and collapse in wet, poorly ventilated beds.

Can I use copper oxychloride as a fungicide?

Yes, copper oxychloride is a broad-spectrum contact fungicide widely used in both conventional and organic farming to control leaf spots.

How does solarization clean soil?

Covering wet soil with transparent plastic sheets during peak summer raises soil temperature, killing pests, weed seeds, and pathogens.

What is the best way to handle viral crop diseases?

Viral diseases have no cure. You must remove and burn infected plants and control sucking insects (like aphids) that spread the virus.

Why is water logging bad for root health?

Excess water fills soil air spaces, starving roots of oxygen. This suffocates roots and creates perfect conditions for root rot fungi to multiply.

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