Rubber (Hevea brasiliensis)
Bark Feeding Caterpillar (Aetherastis circulate, Ptochoryctis rosaria)
Symptoms
- The caterpillar builds galleries with faecal matter and silk all over the trunk region and branches of the trees.
- They generally feed on dead bark and occasionally on live bark causing exudation of latex.
- Deep scar is found at the regions of feeding.
Management
- PB 86, PB 235 and PB 311 are highly susceptible clones.
- Apply Fenvalerate 0.4 DP at the rate of 7 kg per hectare with a power duster.
Chemical Control
| Sl.No | Generic Name | Trade Name | Color code | Dosage/litre | Knapsack Sprayer (Capacity 10L) | Recommendation | Remarks | |
|---|---|---|---|---|---|---|---|---|
| Dosage/acre (200 L) | Dosage/hectare (500 L) | |||||||
| 1 | Fenvalerate 20 EC | Tatafen, Tagfen, Fencen Fenval, Fighter EC, Yesfen Anufen, Fencro, Newfen Marsfen, Lufen, Fenkil Krifen, Arfen DP, Agrofen 20 | Yellow | 1 ml | 10 ml | 200 ml | 500 ml | |
Extremely Toxic
Highly Toxic
Moderately Toxic
