Clove (Syzygium aromaticum)
Stem borer (Sahyadrassus malabaricus)
Symptoms
- The larva of the stem borer girdles the stem of young clove trees at the basal region and bores downward into the root zone.
- The girdled region and the bore-hole are covered with frass consisting of coarse wood particles that are formed as a mat-like structure.
- The infested trees wilt and defoliate to the pest attack subsequently
Management
- Keep field clean.
- Clean hole and insert cotton wool soaked in emulsion of kerosene or petrol in each hole and plug them with mud.
- Keep the basins free of weeds.
- Spray Neem seed kernel extract -50g/litre of water
- Spray Beauveria bassiana – 20g/litre of water
Chemical Control
| Sl.No | Generic Name | Trade Name | Color code | Dosage/litre | Recommendation | Remarks | |
|---|---|---|---|---|---|---|---|
| Dosage/acre (200 L) | Dosage/hectare (500 L) | ||||||
| 1 | Quinalphos 25 EC | Agroquin, Anuphos, Guin Guard Tagquin, H.LX, Hilquin Geelux, Kinalaux Exalux, Krilux, Quinaswan Flash, Quincid Starlux, Rambalux Quinolux | Yellow | 1 ml | 200 ml | 500 ml | |
Extremely Toxic
Highly Toxic
Moderately Toxic
