The rice leaf folder disease is characterised by folded leaves that become white and dry. This is one of the common diseases seen in rice crops. Without effective management steps, it is not easy to tackle pests.
Symptoms Of Rice Leaf Folder
The most common symptom of rice leaf folder disease is the longitudinal folding of the leaves. The larva of the pest resides inside this fold. It feeds on the green tissues, leaving the leaves white and later dry. Under severe infestation in the field, all crops show similar symptoms and the field will look scorched.
Preventive Measures
Applying chemical or biological control measures is the best way to prevent this disease. It is also recommended to avoid using nitrogenous fertilisers excessively. Another way to prevent this is to keep the bunds clean.
Chemical Control
- Caldan 4G is an insecticide that works in systemic and contact methods as well as by stomach action. This belongs to the nereistoxin analogue group that can effectively eliminate caterpillars. It is eco-friendly and effective for a long time against all stages of insects. You can use it in combination with other insecticides and fungicides as well. The recommended dosage is 7.5 to 10 kg per acre and you must keep standing water for 2-3 days after application.
- Talstar FMC Insecticide contains bifenthrin 10% that provides broad spectrum bactericidal and insecticide properties. It is highly effective against chewing pests and termites (when it bids with soil particles). It stays stable even at higher temperatures and causes less irritation. The dosage should be 1 ml per litre of water or 200 ml per acre with a 15 days interval between sprays.
- Rilon Insecticide made of 5% emamectin benzoate can act against lepidopteran insects via a unique mechanism. It is absorbed by the leaves and stays as a reservoir inside the leaves. When the insect feeds on the foliage it releases the chemical that contracts its muscles leaving them dead. These water-soluble granules have a dosage of 0.5 gm in one litre of water.
- Hibiki Insecticide is an organophosphorus product that acts quickly and works on a wide variety of pests through contact and stomach action. It contains chlorpyriphos 50% that work for a longer period. The dosage is 1.2 ml per litre or 200 ml/acre.
Chemical management of Rice Leaf folder:
| S. No. | Technical name | Product name |
| 1. | Chlorantraniliprole 18.5 % w/w | CORAGEN INSECTICIDE |
| 2. | Monocrotophos 36% SL | UPL PHOSKILL INSECTICIDE |
| 3. | Thiamethoxam (12.6%) + Lambdacyhalothrin (9.5%) ZC | ALIKA INSECTICIDE |
| 4. | Quinalphos 25 % EC | EKALUX INSECTICIDE |
| 5. | Profenophos 40%+Cypermethrin 4%EC | PROFEX SUPER INSECTICIDE,
|
| 6. | Carbosulfan 25% EC | MARSHAL INSECTICIDE |
| 7. | Flubendiamide 19.92% + Thiacloprid 19.92% w/w SC (480 SC) | BELT EXPERT INSECTICIDE |
| 8. | Flubendiamide 480SC (39.35% w/w) | FAME INSECTICIDE |
| 9. | Chlorantraniliprole (10 %)+ Lambdacyhalothrin (5%) ZC | AMPLIGO INSECTICIDE |
| 10. | Choropyriphos 50 % + Cypermethrin 5 % w/w | KORANDA 505 INSECTICIDE, LARA 909 INSECTICIDE, HAMLA 550 INSECTICIDE |
| 11. | Emamectin benzoate 5% SG | STARCLAIM INSECTICIDE, PROCLAIM INSECTICIDE, EM-1 INSECTICIDE, RILON INSECTICIDE, |
| 12. | Profenofos | JASHN INSECTICIDE |
| 13. | Cartap Hydrochloride 50% SP | CALDAN 50 SP INSECTICIDE |
| 14. | EC formulation of Ethion 40% + Cypermethrin 5% | NAGATA INSECTICIDE |
Biological management of Rice leaf folder:
| S. No. | Technical name | Product name |
| 1. | Spinetoram 11.7% SC | DELEGATE INSECTICIDE |
| 2. | Spinosad | TRACER INSECTICIDE |
| 3. | Bacillus thuringiensis var kurstaki | DELFIN WG ® – BACILLUS THURINGIENSIS |
| 4. | Azadirachtin | ECOTIN ® – AZADIRACHTIN 50000 PPM (5%) EC – BIO INSECTICIDE , NEEMOL (10000 PPM) BIO NEEM OIL INSECTICIDE |
Conclusion
You can effectively manage the trouble caused by rice leaf folders using any of these insecticides on the field. We hope that this information will be helpful to you. To get all kinds of information related to crops visit our website https://kisanvedika.bighaat.com/ or give a missed call on our toll-free number 1800 3000 2434.
Note: The information contained herein is for informational purposes only. Nothing herein shall be construed to be financial or legal advice. Pesticides are a considerable risk of loss in crops and viewers are advised to do their own research before making any decisions.
