Broadleaf weeds, grasses, sedges – Which harms sugarcane fields most?
Growing cane but… "feeding weeds"?
It sounds like a joke, but it is a real problem for sugarcane growers:
"After fertilising, watering and spraying… the weeds are fat and the cane is thin!"
The problem is not cane-growing technique, but not identifying the weeds correctly to choose the right product. Some weeds must be treated from the start; others are very persistent and need a specialised product.
The 3 most common weed groups in sugarcane fields
| Weed group | Characteristics | Harm | Examples |
|---|---|---|---|
| Grasses (narrow-leaf) | Straight leaves, upright growth | Shade the crop, compete for light – take up nitrogen very quickly | Cỏ chỉ, cỏ cú |
| Broadleaf weeds | Large leaves, creeping growth | Create shade – shelter for pests and diseases | Cỏ xuyến chi, cỏ lác, cỏ gà |
| Sedges (Cyperus spp.) | Fibrous roots, spread by underground stems | Very hard to control, persistent – crowd cane roots | Brown sedge, white sedge |
Of the 3 groups, sedges are the most damaging, because they regrow very quickly if not controlled down to the roots.
With hand weeding only or the wrong spray – weeds regrow within 7–10 days
- Underground roots survive → stronger regrowth
- Wrong target → only the tops die, not the roots
- Persistent weeds → the cane is completely overtaken
✅ Controlling all 3 weed groups – with low risk to young cane
Use a broad-spectrum herbicide that controls broadleaf weeds, grasses and sedges
Prefer pre-emergence or early post-planting products that do not burn the cane
Add a sticker adjuvant – for deeper penetration
Xinron 800WG is one option:
Controls broadleaf weeds, grasses and sedges
Does not affect the cane when used as directed
Long-lasting activity – less regrowth
Works in both the dry and the rainy season
Need help identifying weeds and choosing the right product?
Send photos of your cane field – Vietcropchem technical staff advise free of charge: +84 86 210 5050
SEO keywords used in this article: #CoLaRong #CoLaHep #CoGau #ThuocTruCoMia #Xinron800WG #Vietcropchem
[NEWS 22/10/2025]
