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Crop desk · Castor
✓ CIB&RC lists up to 30 September 2026
Castor: every approved pesticide, dose and brand
Find your problem (a pest, a disease or a weed) and see each chemical approved for it on castor, how much to use per acre and in one 15-litre pump, the last spray before harvest, and the brands that sell that exact chemical. From the government's CIB&RC lists; nothing here is paid for.
5 products approved for castor in the CIB&RC lists of major uses (insecticides, fungicides and herbicides up to 30 September 2026;
bio-insecticides as on 30 September 2026), 1 of them with brand names. Guidance, not legal advice: check that a product is not banned or restricted.
How to use this page
Pick your problem below (semilooper, defoliators and caterpillars, grasses…), or several at once, or type it in the search box. With several, the products approved for all of them come first.
Choose one chemical from the cards. The dose is per acre and per 15-litre pump; the last spray must be that many days before you pick.
Buy any brand of that exact chemical, strength and form (for example “18.5% SC”). The brand name differs, the chemical is the same. Check that castor is on the label.
Do not spray the same chemical again and again. Change to a different chemical for the next spray, and never mix products the label does not allow.
Figures are rounded; the label of the pack you buy is final. Wear gloves and a mask while spraying.
About the brand names
Brand names are given only to help you find the product. Before buying, check that the chemical name and strength printed on the pack match what is shown here. Names marked ⓘ are from trade listings and not yet confirmed by the company; spelling mistakes are possible. For clarity, contact your nearest agri-input store (कृषी सेवा केंद्र) or agriculture officer. Other brands with the same chemical and strength work the same way. NanoKheti does not sell or endorse any brand.
ब्रँडची नावे फक्त उत्पादन ओळखण्यास मदत व्हावी म्हणून दिली आहेत. खरेदी करण्यापूर्वी पाकिटावर छापलेले रसायनाचे नाव व प्रमाण येथे दिलेल्याशी जुळते का ते तपासा. ⓘ खूण असलेली नावे व्यापारी यादीतून घेतली आहेत व कंपनीकडून अजून पडताळलेली नाहीत; नावात चूक असू शकते. अधिक माहितीसाठी जवळच्या कृषी सेवा केंद्राशी किंवा कृषी अधिकाऱ्याशी संपर्क साधा. तेच रसायन व तेच प्रमाण असलेले इतर ब्रँडही तसेच काम करतात. नॅनोखेती कोणताही ब्रँड विकत नाही किंवा त्याची शिफारस करत नाही.
Same chemical, strength and form. Before buying, check the chemical name and strength on the pack, and that castor is on its label. ⓘ = not yet confirmed by the company: ask your agri-input store.
Borers and caterpillars
1 product · semilooper
Dimethoate 30 % ECliquid
For: Semi looper
Per acre470 ml
In one 15-litre pump17–35 ml13–27 pumps an acre (200–400 litres of water)
Last spray before harvestnot given
Government figures, per hectare
Active ingredient: 350 · Product: 1155 · Water: 500 – 1000 litres · Waiting period: – days
Same chemical, strength and form. Before buying, check the chemical name and strength on the pack, and that castor is on its label. ⓘ = not yet confirmed by the company: ask your agri-input store.
In one 15-litre pump20–30 g13–20 pumps an acre (200–300 litres of water)
Last spray before harvestnot given
Government figures, per hectare
Active ingredient: – · Product: 1.00 kg. · Water: 500-750 litres · Waiting period: – days
No brand of this exact strength and form checked yet. Ask your agri-input store for this chemical and strength.
Dose: per acre = the list’s dose per hectare × 0.405; per pump = the dose for a 15-litre pump at the water the list gives; rounded.
Where the list gives the dose as a strength of the spray, the pump amount is that strength × 15 litres. Seed treatments are per kg of seed. Where a figure cannot be read safely, the card says
“see the government figures below”. 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; CIB&RC bio-insecticides as on 30 September 2026. Brands: linked names are from each company's own website (the link opens it), matched to the exact chemical, strength and form in the lists; names with ⓘ are from trade listings, checked by web search, not yet confirmed by the company. Large companies are listed first; the order is not a ranking, and NanoKheti does not sell pesticides or take money from any company. The lists say: “The document has been compiled on the basis of available information for guidance and not for legal purposes.”
Which pesticides are approved for semilooper in castor?
The CIB&RC lists give 4 products for semilooper on castor, including 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. Each card above shows the dose per acre and per pump, the days before harvest and brands of the same chemical. Use a product only as its approved label says.
Which pesticides are approved for defoliators and caterpillars in castor?
The CIB&RC lists give 2 products for defoliators and caterpillars on castor, including 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. Each card above shows the dose per acre and per pump, the days before harvest and brands of the same chemical. Use a product only as its approved label says.
Can I use any brand of the same chemical on castor?
A brand with exactly the same chemical, strength and form (for example 18.5% SC) is the same product under another name. But each brand is approved for the crops on its own label, so check that castor is on the label of the pack you buy.
