Thiophanate Methyl 70% WP (Topsin M) – systemic fungicide for wheat smut, fruit tree root rots, black spot on apple/pear. Protective & curative action. 1kg packaging.
Systemic fungicide with protective and curative action, absorbed through roots and leaves. Effective against wheat smut, white root rot, Armillaria root rot in fruit trees, black spot on apple and pear, and powdery mildew on fruit trees.
Mode of Action
Systemic fungicide with protective and curative properties from the thiophanate family. Low toxicity to mammals but mutagenic and irritant. Inhibits β-tubulin biosynthesis, disrupting fungal mitosis and cell division.
Uses
Internationally used for eye spot, scab, powdery mildew, gray mold, leaf spots, rusts, brown spots, and root rots on fruit trees, cereals, cucurbits, soy, peanuts, walnuts, garlic, onions, almonds, strawberries, grapes, tomatoes, and eggplants. Pre-harvest interval (PHI) for apples is 7-14 days.
Wheat – common covered smut: 150 g per 100 kg seed
Wheat – loose smut: 150 g per 100 kg seed
Apple – black spot: 500-600 g per 1000 L water
Pear – black spot: 500-600 g per 1000 L water
Fruit trees – white root rot: 1-1.2 kg per 1000 L for tree irrigation
Septoria pyricola: 50 g near the trunk base.
Product
Diseases
Consumption rate
Wheat
common covered smut
150 g per 100 kg seed
Wheat
loose smut
150 g per 100 kg seed
Apple
black spot
500-600 g per 1000 L water
Pear
black spot
500-600 g per 1000 L water
Fruit trees
white root rot
1-1.2 kg per 1000 L for tree irrigation
Pear
Septoria pyricola
50 g near the trunk base
Additional information
Weight
500gr
Formulation
WP70%
Resistance group
FRAC=B1
Chemical group
Benzimidazole
Amount of active ingredient
700gr/Kg
Low mammalian toxicity but persistent in soil—limit applications to protect earthworms and soil microbes.
Toxic to aquatic life; avoid runoff into water bodies during root drench or foliar applications.
Safe for pollinators when dry; integrate into IPM to minimize non-target effects.
High resistance risk—use rotation and cultural practices for sustainable disease control.
Do not exceed recommended frequency of applications; repeated overuse may affect soil microorganisms and ecological balance in paddy fields.
Collect and dispose of empty containers and product residues according to local regulations; do not burn or bury containers in or near water sources.
Toxic to aquatic organisms; prevent contamination of ponds, streams, canals, and irrigation channels by avoiding cleaning of equipment or disposal of leftover spray near water bodies.
Avoid spraying under strong wind to reduce drift to non‑target plants, neighboring crops, and natural habitats.
Use in an integrated disease management (IDM) program and rotate with fungicides of different modes of action to slow down resistance development in the rice blast pathogen.
Used containers should be collected according to local regulations.
