Turmeric (Curcuma longa)
Shoot borer (C.O.: Conogethes punctiferalis)
Symptoms
- The larvae bore into pseudostems and feed on internal tissues resulting in yellowing and drying of leaves of infested pseudostems.
- The presence of a bore-hole on the pseudostem through which frass is extruded and the withered and yellow central shoot is a characteristic symptom of pest infestation.
Management
- Cut open the shoot and pick out the caterpillar and destroy.
- Spray neem oil (0.5%) at fortnightly intervals if found necessary.
- Spray Beauveria bassiana (20 g/litre of water).
- Mulching with green Vitex negundo leaves @ 2 t/acre at 40 and 90 days after planting.
- Conserve the natural bioagents such as ladybird beetle, spiders, Chrysopids, Trichogrammatids, Bracon sp (larval), Myosoma sp (larval), Apanteles sp (larval) , Xanthopimpla sp (larval and pupal) etc.,
- Release Trichogramma chilonis @ 40000/ acre.
Chemical Control
| Sl.No | Generic Name | Trade Name | Color code | Dosage/litre | Recommendation | Remarks | |
|---|---|---|---|---|---|---|---|
| Dosage/acre (200 L) | Dosage/hectare (500 L) | ||||||
| 1 | Dimethoate 30 EC | Nugor, Rogor, Tagor, Tara 909, Label colour | Yellow | 2 ml/litre of water | 400 ml | 1000 ml | |
| 2 | Quinalphos 25 EC | Agroquin, Anuphos, Guin Guard Tagquin, H.LX, Hilquin Geelux, Kinalaux Exalux, Krilux, Quinaswan Flash, Quincid Starlux, Rambalux Quinolux | Yellow | 2 ml/litre of water | 400 ml | 1000 ml | |
Extremely Toxic
Highly Toxic
Moderately Toxic
