Details

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✅ Definition

• Daconil 2787 is a fungicide with the active ingredient Chlorothalonil at 50% w/w formulation (wettable powder, WP). 

• It belongs to the chemical group known as chloronitriles (FRAC group M5) — meaning it functions by contact and protective/curative activity. 

• Example product label: "DACONIL® 2787 is a fungicide from the chemical group of chloronitrile, having protection and curative actions."

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🎯 Mode of Action & Features

• Since it’s contact (and partly curative) it must reach the fungal infection site; typically it acts on the surface of leaves and stems, protecting healthy tissue and limiting spread of existing infections. 

• Because it’s a wettable powder, care must be taken in mixing, spraying evenly, and achieving good coverage.

• It is described as “broad-spectrum protection” in online listings (covers many fungal diseases) in Malaysia. 

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🌾 Typical Uses / Crops & Diseases

• According to Malaysian sources, this fungicide is suitable for various crops including: banana (for sigatoka leaf spot), ornamentals (leaf spots), vegetables (tomato, salad, cabbage) for leaf blight/hawang daun. 

• Example: “Sesuai untuk tanaman-tanaman: 1. Pokok pisang – sigatoka (bintik daun) 2. Bunga-bunga – bintik daun 3. Tomato, salad, kubis dan dll – hawar daun”

• It may also be used for fruit trees and other foliage where leaf spots, downy mildew, and other foliar fungi are an issue.

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🧪 How to Use It (General Guidelines)

• Always read and follow the local label/instruction for your crop and region.

• Typical preparation: The wettable powder must be well-mixed with water and sprayed to cover leaves thoroughly (upper and lower surfaces). Eg: one listing gives “Bancuh 20 g racun dengan 20 L air, selepas itu sembur ke tempat yang terkena kulat daun.” (Mix 20 g with 20 L water then spray on affected leaves) 

• Ensure equipment is clean, spray in suitable conditions (not too hot, avoid drift and run-off) so that spray contacts infection sites.

• Apply at the first signs of disease or as a preventive measure when conditions favour disease (humid, warm, leaf wetness) because contact fungicides depend on getting to the right place before heavy infection.

• Respect pre-harvest intervals (PHI) and re-entry intervals (REI) shown on label.

• Storage: Store in original container, cool dry place, keep out of reach of children and animals. See MSDS for safe handling. 

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⚠️ Safety & Stewardship Considerations

• Because chlorothalonil is a contact fungicide, it does not move systemically within the plant (or very little). So it needs good spray coverage.

• Resistance: While the active is not in one of the “high-risk” single-site groups like strobilurins, resistance management (rotate with fungicides of different modes of action) is still good practice.

• Environmental & human safety: Use proper PPE (gloves, mask/respirator if needed, protective clothing). Avoid drift into water bodies. MSDS indicates handling precautions.

• The product is classed as “Racun Kulat” (fungicide) and labelled accordingly in Malaysia; keep usage records if required by local regulation.