Free tool · CIB&RC major uses
✓ CIB&RC list up to 30 September 2026 · checked 24 October 2026
Insecticides approved for castor in India
Every insecticide registered for castor in the official CIB&RC lists of major uses: the pest, the dose per hectare, the water and the waiting period before harvest.
Insecticides (single ingredient)
2 uses · chemical| Product (as registered) | Pest | a.i. g/ha | Product /ha | Water L/ha | Waiting days |
|---|---|---|---|---|---|
| Dimethoate 30 % EC | Jassids, Mites | 250 | 825 | 500 – 1000 | – |
| Dimethoate 30 % EC | Semi looper | 350 | 1155 | 500 – 1000 | – |
Bio-insecticides
4 uses · neem, Bt, fungi, viruses| Product (as registered) | Pest | a.i. g/ha | Product /ha | Water L/ha | Waiting days |
|---|---|---|---|---|---|
| Bacillus thuringiensis var. kurstaki, serotype H-39, 3B, Strain Z-52 | Hairy caterpillar, Achaea janata | 1.00 | 500-750 | – | – |
| Bacillus thuringiensis var. kurstaki 0.5% WP serotype 3a, 3b, 3c, Strain DOR Bt-1, Potency 9000 IU/mg min. U/s 9(3b)Caster | Castor semilooper (Achaea janata) | – | 0.25 | 250-300 | – |
| Bacillus thuringiensis var. kurstaki 0.5% WP serotype 3a, 3b, 3c, Strain DOR Bt-1, Potency 9000 IU/mg min. U/s 9(3b) (second entry)Caster | Castor semilooper (Achaea janata) | – | 0.25- 0.375 | 250 | – |
| Bacillus thuringiensis var. kurstaki, Serotype H-3a, 3b, Strain Z-52 (potency 3000 to 55000 IU/mg by test insect) | Hairy caterpillar, Castor semilooper (Achaea janata) | – | 1.00 kg. | 500-750 | – |
Doses per hectare as listed: a.i. in grams, product in grams or ml unless a unit is shown, water in litres. Waiting period = days from the last application to harvest. Where the list names the crop with a method (for example “soil drench” or “nursery”), it is shown under the product. Values exactly as listed.
Insecticides for castor: short answers
Which insecticides are approved for semilooper in castor?
The CIB&RC list of major uses gives 4 products for semilooper on castor: Bacillus thuringiensis var. kurstaki 0.5% WP serotype 3a, 3b, 3c, Strain DOR Bt-1, Potency 9000 IU/mg min. U/s 9(3b); Bacillus thuringiensis var. kurstaki 0.5% WP serotype 3a, 3b, 3c, Strain DOR Bt-1, Potency 9000 IU/mg min. U/s 9(3b) (second entry); Bacillus thuringiensis var. kurstaki, Serotype H-3a, 3b, Strain Z-52 (potency 3000 to 55000 IU/mg by test insect); Dimethoate 30 % EC. Check the dose and waiting period in the tables, and the approved label of the product you buy.
Which insecticides are approved for looper in castor?
The CIB&RC list of major uses gives 4 products for looper on castor: Bacillus thuringiensis var. kurstaki 0.5% WP serotype 3a, 3b, 3c, Strain DOR Bt-1, Potency 9000 IU/mg min. U/s 9(3b); Bacillus thuringiensis var. kurstaki 0.5% WP serotype 3a, 3b, 3c, Strain DOR Bt-1, Potency 9000 IU/mg min. U/s 9(3b) (second entry); Bacillus thuringiensis var. kurstaki, Serotype H-3a, 3b, Strain Z-52 (potency 3000 to 55000 IU/mg by test insect); Dimethoate 30 % EC. Check the dose and waiting period in the tables, and the approved label of the product you buy.
Which insecticides are approved for defoliators and caterpillars in castor?
The CIB&RC list of major uses gives 2 products for defoliators and caterpillars on castor: Bacillus thuringiensis var. kurstaki, Serotype H-3a, 3b, Strain Z-52 (potency 3000 to 55000 IU/mg by test insect); Bacillus thuringiensis var. kurstaki, serotype H-39, 3B, Strain Z-52. Check the dose and waiting period in the tables, and the approved label of the product you buy.
Is the CIB&RC list the final word on what I can spray on castor?
No. The list says it is compiled for guidance, not for legal purposes. Use a product only for the crops and pests on its approved label and leaflet, at the label dose, and check that it is not banned or restricted.
Insecticides by crop
Sources: Central Insecticides Board and Registration Committee, Directorate of Plant Protection, Quarantine and Storage: Major uses of pesticides (registered under the Insecticides Act, 1968), Insecticides, up to 30.09.2026, based on certificates issued; and the CIB&RC bio-insecticides list as on 30 September 2026. The lists say: “The document has been compiled on the basis of available information for guidance and not for legal purposes.” NanoKheti is not a government body. Also from NanoKheti: Pesticide label checklist · Pesticide licence guide · Insecticides Act made simple.