Kocide Blue Xtra Garden Fungicide 30g – Copper Fungicide for Fruit & Vegetables

Kocide Blue Xtra Garden Fungicide 30g: Copper Fungicide for Fruit & Vegetables

Kocide Blue Xtra is an easy-to-use copper fungicide that protects fruit trees, vegetables and ornamentals from a wide range of fungal and bacterial diseases. It's based on copper present as copper hydroxide, a Group M1 protectant fungicide, and it controls diseases including black spot, leaf curl, downy mildew, blight, leaf spot, bacterial rot and bacterial canker. This handy 30g pack makes up to 20 litres of spray.

Why It's a Step Up from Older Copper Sprays

Traditional copper sprays like Bordeaux mixture and copper oxychloride work, but they need a lot of copper on the plant to do the job. Kocide Blue Xtra uses an advanced copper hydroxide technology that makes the copper more available to work against disease, so you get strong protection with less metallic copper applied. In practice that means a more efficient spray that mixes easily without clogging, is non-corrosive in the sprayer, and has good rainfastness once dry, a genuine improvement over the older Bordeaux and oxychloride style products.

How It Works

Like all copper fungicides, Kocide Blue Xtra is a protectant. The copper ions form a barrier on the plant surface that stops fungal spores and bacteria from establishing, disrupting their cell processes on contact. Because it protects the surface rather than curing infection inside the plant, it works best applied preventively, before disease takes hold, and with thorough coverage of the plant, including the undersides of leaves. As a multi-site protectant, it also has a low risk of resistance, which makes it a useful part of a spray program.

How to Use

Mix the powder with water and apply as a spray, covering all plant surfaces evenly. This 30g pack makes up to 20 litres of spray (around 1.5 g per litre). Apply at the first sign of disease or as a preventative, and reapply as directed based on weather and disease pressure, reapplying after significant rain since it's a contact product. For stone fruit diseases like leaf curl, apply as a semi-dormant spray at bud swell, before the buds open. Always follow the product label rates for your crop and disease.

Important

Copper can cause leaf or fruit marking (phytotoxicity) if over-applied, particularly in cool, wet conditions, so stick to the label rate and don't over-apply. Copper is also corrosive to metal, so avoid spraying or drift onto cars, metal roofing and similar surfaces. Wear gloves and eye protection when mixing and spraying, avoid inhaling the dust, and wash your hands after use.

Key Features & Benefits

• Copper hydroxide fungicide and bactericide (Group M1)

• Controls black spot, leaf curl, downy mildew, blight, leaf spot, bacterial rot and canker

• Great for fruit trees and vegetables

• Superior to Bordeaux and older copper sprays, more control with less copper

• Easy mixing, no clogging, non-corrosive in the sprayer

• Good rainfastness once dry

• Low resistance risk as a multi-site protectant

• 30g pack makes up to 20 litres of spray

Frequently Asked Questions

What is the active ingredient in Kocide Blue Xtra?
It's copper, present as copper hydroxide, a Group M1 protectant fungicide and bactericide.

What diseases does it control?
A wide range of fungal and bacterial diseases, including black spot, leaf curl, downy mildew, blight, leaf spot, bacterial rot and bacterial canker, on fruit trees and vegetables.

How do I mix Kocide Blue Xtra?
This 30g pack makes up to 20 litres of spray (around 1.5 g per litre). Mix with water, apply as an even spray covering all plant surfaces, and always follow the label rate for your crop and disease.

How is it better than Bordeaux or copper oxychloride?
Its copper hydroxide technology makes the copper more available to fight disease, so you get strong control with less metallic copper applied. It also mixes more easily, doesn't clog, is non-corrosive in the sprayer and has good rainfastness.

Is it a preventative or a cure?
It's a protectant, so it works best applied preventively to stop disease establishing. It doesn't cure infection already inside the plant, which is why coverage and timing matter.

When should I use it on fruit trees?
For diseases like peach leaf curl, apply as a semi-dormant spray at bud swell before the buds open. For other diseases, apply at the first sign or as a preventative per the label.

Can it be used on vegetables?
Yes. It's registered for a wide range of vegetable and fruit diseases. Follow the label for the specific crop and disease.

Does it wash off in the rain?
It has good rainfastness once dry, but as a contact fungicide it will gradually wash off, so reapply after significant rain and as directed on the label.