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What Is Copper Sulphate? (نیلا تھوتھا کیا ہے؟)
Meaning of Copper Sulphate in Urdu is “نیلا تھوتھا” نیلے رنگ کے قلموں والا تانبے کا نمک جو پانی میں گھل کر پودوں کو پھپھوندی اور جراثیمی بیماریوں سے بچانے کے لیے استعمال ہوتا ہے. Gardeners and farmers have used this blue salt for generations, mostly as an ingredient in Bordeaux mixture.
In simple terms, it is a bright blue crystalline solid that dissolves in water to give a blue solution. Sold as crystals, it is usually the pentahydrate form, and it is a strong chemical that needs careful handling.
At a Glance
| Question | Answer |
|---|---|
| What is it? | Blue copper salt crystals, also called bluestone or blue vitriol (نیلا تھوتھا) |
| What type of product is it? | Copper fungicide, traditionally used as Bordeaux mixture with lime |
| What does it do? | Helps protect plants from fungal and bacterial leaf diseases when sprayed before infection |
| How does it work? | A protective film of copper on the leaf surface that spores meet and are stopped by; it protects rather than cures |
| How much should you use? | A typical garden starting strength is a 0.5% Bordeaux mix; your pack label is the final word |
| When should you spray? | Before the disease is expected, in the cooler hours, in dry weather |
| What is it not for? | Not a fertiliser, not for ponds, tanks or fish, and not to be sprayed undiluted or without lime unless the label says so |
| Safety | Harmful if swallowed, damages eyes, very toxic to aquatic life; wear gloves, mask and eye protection |
Why does your garden need it?
Pakistan’s monsoon is the season fungal and bacterial leaf diseases love: warm, wet and humid, with leaves staying damp for long stretches. جھلساؤ (blight) on tomato and potato, پتوں کے دھبے (leaf spots) on vegetables and downy mildew on vines and cucurbits can move fast once spores are on the leaf. Copper sprays are known for staying on leaves better than many protectants, which helps in wet weather.
If you have been searching for neela thotha near me, Organic Baghbani brings it to you online. Browse our Fungicides category to see what else is available for plant disease problems.
What does it do for your plants?
- Blight and leaf spot protection: can help protect tomato, potato, vegetables and ornamentals when sprayed before the disease is expected, depending on the crop and the diseases listed on the label.
- Downy mildew and vine problems: traditionally used as Bordeaux mixture on grapes, melons and other fruit crops.
- Fungal and bacterial coverage: copper is used against both, which is why growers keep it in their spray plan.
- Weather-resistant film: the copper film tends to hold on leaves through light rain better than many alternatives.
- Low-cost, long-used protectant: a small amount of crystals goes a long way when mixed correctly.
A strong fungicide needs respect. US NIOSH publishes an exposure limit for copper dusts and mists, which is one reason gloves, a mask and careful mixing matter. Results depend on your soil, your plants and your watering, and on spraying early and exactly as the label says.
Where should you use it and how much?
These are typical starting figures taken from a copper-industry reference, not a test of your pack. If your pack label shows different figures, follow the label. Start at the low end on home gardens and young plants, because too strong a mix can burn leaves.
| Use | Starting amount | Notes |
|---|---|---|
| Vegetables (سبزیاں) such as tomato and potato | About 0.5% Bordeaux mix: 5 g crystals plus 2.5–5 g fresh hydrated lime per litre of water | Spray before disease is expected; repeat after 2–3 weeks if the season stays wet and the label allows |
| Fruit trees (پھلدار درخت) and grapes | About 0.5%, up to 1% on established trees | Cover the whole canopy; stone fruits and young foliage can be copper-sensitive, so test first |
| Flowers and ornamentals | About 0.5% | Test a few leaves and wait before spraying the whole plant |
| Seedlings and nursery plants | Label rate only; test first | Young leaves are the most sensitive |
| Soil (copper deficiency) | Only after a soil or leaf test confirms it | Too much builds up in soil and can harm plants |
These are starting points. A 1% mix is 10 g crystals plus 10 g hydrated lime per litre; reduce the lime to half only with fresh, good-quality lime.
How is it different from other soil feeds and sprays?
Different products do different jobs. Choose by the problem you are solving, and see our Pest & Disease Control category for more plant-protection options.
| Product | Main job | Use it when |
|---|---|---|
| This blue copper salt | A protective spray against fungal and bacterial leaf diseases | Wet weather brings blight, leaf spots or downy mildew |
| Sulphur-based sprays | Mainly powdery mildew and mites, a contact action | You see white powdery growth or mites rather than wet-weather leaf spots |
| Neem cake | A soil amendment from pressed neem seeds, mixed into soil rather than sprayed on leaves | You are preparing soil or feeding established plants |
| Vermicompost | Builds soil life and structure | You want steadier growth from the roots up |
| Potting soil mix | A ready growing mix with good drainage | You are repotting a plant whose roots stay too wet |
How does it work?
Copper(II) sulfate is an inorganic compound whose pentahydrate form is a bright blue crystal. Mixed with slaked lime and water it makes Bordeaux mixture, a suspension that is used to control fungus on grapes, melons and other fruit crops. The copper stays on the leaf as a thin film, so spores that land on it are stopped before they can enter the tissue. That is why it protects rather than cures, and why the first spray should go on just before the disease is expected. Copper ions are also highly toxic to fish and algae, which is why it must never be rinsed into ponds or drains.
How do you use it?
- Read the whole label first: crops, rate, spray interval and pre-harvest interval.
- Put on gloves, long sleeves, a mask and eye protection. Do not eat, drink or smoke while mixing.
- Use plastic or wooden vessels only. Never use iron or galvanised containers; the solution attacks metal.
- Dissolve the crystals in half of the water. In a separate plastic bucket, mix fresh hydrated lime (چونا) into the other half.
- Slowly pour the blue solution into the lime mixture while stirring, then strain it into the sprayer.
- Test the mix: dip a clean iron nail or knife blade for about a minute. If it comes out coated with copper, add a little more lime and test again.
- Spray the same day, in the cooler hours, in calm and dry weather. Cover both sides of the leaves with a fine mist and avoid spraying just before rain.
- Repeat only as the label allows, usually every 2–3 weeks in wet weather. Do not shorten the gap or raise the strength.
- On edible crops, respect the pre-harvest interval and wash produce before eating.
- Rinse equipment well away from drains, ponds, wells and tanks. Store the pack tightly closed, dry, away from children, pets, food and metal.
Product specifications
| Specification | Details |
|---|---|
| Product | Neela Thotha (blue copper salt crystals) |
| Brand | Organic Baghbani |
| Material | Copper salt, usually the pentahydrate (see the pack label) |
| Appearance | Bright blue crystals |
| Claim | Helps protect plants from fungal and bacterial leaf diseases when used as the label directs |
| Action | Protective; not a cure |
| Application | Foliar spray, usually as Bordeaux mixture with lime |
| Primary use | Protection against blight, leaf spots and downy mildew |
| Suitable for | Fruit trees, grapes, vegetables, ornamentals and nursery plants, as the label allows |
| Not ideal for | Seedlings without a test, ponds, tanks and fish, use as a fertiliser, or spraying without lime unless the label says so |
| Typical composition | The blue pentahydrate is about 25% copper by weight (a general property of the compound, not a test of each batch) |
| Storage | Dry place, tightly closed, away from heat, metal, children, pets and food |
| Category | Pest & Disease Control › Fungicides |
| Bulk orders | Special discount on bulk quantity. WhatsApp or call 03119073909 |
| Pack Size | Effective Rate | Pack Price | Select |
|---|---|---|---|
250gm | ₨ 1,720 / KG | ₨ 430 | |
500gm | ₨ 1,220 / KG | ₨ 610 | |
1kg | ₨ 1,100 / KG | ₨ 1,100 | |
5kg | ₨ 960 / KG | ₨ 4,800 | |
25kg | ₨ 640 / KG | ₨ 16,000 |
What is Neela Thotha used for? (نیلا تھوتھا کس کام آتا ہے؟)
It is used mainly to make Bordeaux mixture, a protective spray against blight, leaf spots and downy mildew on fruit trees, vegetables and ornamentals.
Is it the same as Bordeaux mixture?
Not exactly. These crystals are one ingredient; Bordeaux mixture is made by mixing the dissolved crystals with slaked lime and water.
Can I spray the dissolved crystals on their own?
It is not recommended. A copper solution without lime can scorch leaves, which is why the traditional mix adds lime. Follow your label, and test a few leaves first.
Which diseases can it help with?
Common targets are blight, leaf spots, downy mildew and some bacterial spots. Only the diseases and crops printed on the label are covered.
How often can I spray?
In wet weather a gap of about 2–3 weeks is typical, but your label sets the interval. Do not shorten it, and do not use a stronger mix.
Can I use it on vegetables and fruit close to harvest?
Respect the pre-harvest interval on the label and wash produce thoroughly before eating. Avoid spraying edible parts near picking time.
Is it safe for fish, ponds and pets? (کیا یہ مچھلی اور پانی کے لیے محفوظ ہے؟)
No. Copper ions are highly toxic to fish and aquatic life, and the crystals are harmful if swallowed. Keep it away from ponds, wells, tanks, drains, children and pets.
Can I mix it with other sprays?
Only if the label allows it. To be safe, do not tank-mix it with other pesticides or fertilisers, and test any combination on a few leaves first.
How should I store it?
Keep the pack tightly closed in a dry place, away from moisture, metal containers, food, children and pets.
What is the neela thotha price in Pakistan? (قیمت)
The current price is ₨ 430. Bulk orders get a special discount: message or call 03119073909
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