What is TH-Derma?
Th-Derma is a biological fungicide based on Trichoderma harzianum. It is used to help manage fungal diseases affecting the root zone, seedlings, and crop establishment.
Which diseases does Th-Derma help control?
Th-Derma helps manage fungal diseases such as damping-off, root rot, collar rot, wilt, fruit rot, and other pathogenic fungal infections affecting agricultural and horticultural crops.
What is the active organism in Th-Derma?
The active organism in Th-Derma is Trichoderma harzianum, a beneficial fungus widely used in biological crop protection and root-zone management.
How does Th-Derma work?
Th-Derma works through several biological mechanisms. Trichoderma harzianum competes with pathogens in the rhizosphere, produces natural antimicrobial compounds, and secretes enzymes such as chitinase, glucanase, and pectinase that help suppress harmful fungi.
Can Th-Derma help against nematodes?
Yes. Th-Derma can support nematode management programs and is indicated for nematodes such as root-knot nematodes and reniform nematodes.
Which crops can Th-Derma be used on?
Th-Derma can be used on a wide range of crops, including banana, cotton, cabbage, chillies, marigold, paddy, cauliflower, citrus, grapes, ginger, groundnut, ornamentals, pepper, pomegranate, tea, tomato, turmeric, jowar, okra, sunflower, pulses, and wheat.
How should Th-Derma be applied as a foliar spray?
For foliar application, mix 10 g of Th-Derma powder in sufficient water and spray uniformly over the crop canopy. The total spray volume should be adjusted according to crop type and canopy size.
How should Th-Derma be applied to soil?
For soil application, mix Th-Derma with organic fertilizer and apply it to the root zone. The current product page recommends mixing 50 kg of Th-Derma powder with organic fertilizer for application over 1 acre of land.
How is Th-Derma used for nursery root dipping?
For nursery root dipping, mix 10 g of Th-Derma with 1 litre of water and dip plant roots before transplanting. The current page recommends overnight dipping for nursery application.
When should Th-Derma be applied?
Th-Derma is best applied preventively, especially during nursery, transplanting, early root establishment, and periods when soil-borne disease pressure is expected. It can also be used as part of a regular biological disease-management program.
Can Th-Derma be used with organic fertilizer?
Yes. Th-Derma is suitable for soil application with organic fertilizer, which helps distribute the beneficial fungus around the root zone and supports microbial establishment.
Is Th-Derma only for soil application?
No. Th-Derma can be used as a foliar spray, soil application, or root-dip treatment depending on the crop stage and disease-management objective.
Is Th-Derma suitable for nurseries?
Yes. Th-Derma is suitable for nursery use, especially for root dipping and early-stage protection against damping-off and root-zone diseases.
How should Th-Derma be stored?
Store Th-Derma in a cool, dry place at room temperature. Keep the pouch sealed when not in use and protect it from moisture, direct sunlight, and high heat.
Can Th-Derma replace all fungicides?
Th-Derma is best used as part of an integrated disease-management program. It can reduce dependence on conventional chemical fungicides, but disease-control strategy should be adjusted based on crop, disease pressure, weather conditions, and local agronomic guidance.