Weeds – a "silent" problem that weakens pepper gardens day by day
Weeds compete with pepper for:
- Nutrients
- Light
- Root space
Weeds also:
- Raise humidity around the base of the vines → favourable conditions for fungal disease
- Make pests and diseases harder to spot
- Shelter ants, mealybugs and nematodes
Especially in the rainy season, weeds grow fast; if not managed in time they can "choke" the garden within a few weeks.
Common and harmful weeds in pepper gardens
| Weed | Characteristics | Severity |
|---|---|---|
| Cỏ tranh (cogongrass) | Underground stems, long runners, pierce roots | **** |
| Cỏ cú (nutsedge) | Strong rhizomes, regrows quickly | **** |
| Cỏ ống, cỏ lá tre | Clumping, grow fast in the rainy season | *** |
| Cỏ lác, cỏ chỉ | Scattered growth, spread easily | ** |
| Cỏ hổ, cỏ gấu | Slender stems, spread widely | *** |
A fast-acting weed-control option: Vietquat 200SL
✅ Key features:
- Active ingredient acts on weeds within 24 hours
- Contact action, quickly desiccates leaves
- Effective on many broadleaf weeds and grasses
- Does not affect pepper when used with the correct technique
- Suitable for band spraying between rows or at the base away from the pepper stems
How to use Vietquat 200SL in the garden
| Weed type | Rate | How to spray |
|---|---|---|
| Young weeds | 100ml/20L water | Spray directly when weeds are under 15cm tall |
| Older, perennial weeds | 150ml/20L water | Spray evenly; avoid contact with pepper bases |
| Preventing regrowth | 100ml/20L water (repeat after 25–30 days) | Spray strips between rows and open bands |
Do not spray on rainy days or when rain is expected. Do not let the product touch pepper stems or young leaves. Growers can combine it with a herbicide containing Gluphosinate for fast, longer-lasting weed management.
Need technical advice on using herbicides correctly in pepper?
Contact the Vietcropchem technical team: +84 86 210 5050
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[NEWS 2/10/2025]
