Garden Nursery Products
Gold Coast · Est. 1979

Phozguard 620 Fungicide 20L

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Pro-Grade Quality
24hr Dispatch
FUNGICIDE · SKU: 900-182A

Phozguard 620 Fungicide 20L

★★★★★4.7 (55 Google reviews)·Available — In-Store Pickup Only

$203.50 Inc GST

PHOZGUARD 620 Fungicide is a 20 L pack of a 620 g/L phosphonate systemic fungicide (Group 33). The label lists root rot in avocado and citrus, root and crown rot in ornamentals, and downy mildew in grapes, poppies and cucurbits. Lawn and most vegetables are not listed. Harmful to fish.

Out of stock

Fast DispatchWithin 24hrs Australia-wide
Quality GuaranteedPro-grade formulations
30 kg43 × 29 × 21.5 cm
Need Advice?07 5537 4585
Active Ingredient620 g/L Phosphorous
SKU: 900-182A Categories: , Brand:

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Product Description

PHOZGUARD 620 Fungicide is a 20 L pack of a systemic fungicide with 620 g/L phosphorous (phosphonic) acid as mono and di potassium phosphite (Group 33, APVMA 66655). The label lists root rot in avocado and subterranean clover, root and collar rot in citrus, root and crown rot in ornamentals, root and heart rot in pineapples, and downy mildew in grapes, poppies and cucurbits. Lawn, turf and vegetables other than cucurbits are not listed.

Where the label has limits. For ornamentals the label gives 1.6 mL per litre by boom or knapsack at 4 to 6 week intervals, and says not to apply to ornamentals that are dormant, stressed or under extremes of temperature, and to test a few plants of each species first. Young container-grown mandarins can show leaf burn. Do not apply at volumes that cause excessive run-off, and for foliar sprays direct the mix only onto the target plant.

Harvest and grazing. Not required for avocados, citrus, cucurbits, grapes and pineapples when used as directed. Do not harvest poppies for 6 weeks, and do not graze or cut subterranean clover for stock food for 14 days.

Waterways. Harmful to fish. Do not spray over watercourses or onto native plants, and do not contaminate streams, rivers or watercourses with the chemical or used containers.

How to use it. Rates depend on the crop, disease and method. See the Application Rates tab, our mixing guide and the full label before mixing (the label we hold lists AgroBest Australia as the supplier).

Before you buy. The label says it may irritate the eyes and skin and not to inhale spray mist. It asks for cotton overalls buttoned to the neck and wrist, a washable hat, elbow-length PVC gloves, goggles and a disposable face mask. If poisoning occurs, contact a doctor or the Poisons Information Centre on 13 11 26.

Delivery from $17, priced by weight and postcode at checkout.

Additional information

Weight30 kg
Dimensions43 × 29 × 21.5 cm
Size

20L

Safety Data Sheets (SDS)

Application Rates

The typical application rate for Phozguard 620 fungicide is 1.9 L/ha for early season small canopies, increasing to 2.6 – 3.9 L/ha during mid to late season with larger canopies; however, always consult the product label for specific instructions based on your crop and local conditions.

Key points about Phozguard 620 application:

Adjust based on canopy size:
Increase the application rate as the plant canopy grows throughout the season.
Spray timing is crucial:
Apply Phozguard 620 preventively, especially when conditions favor disease development like high humidity.

Tank mixing:

Often mixed with other protectant fungicides like mancozeb for broader disease control.
Coverage is important:
Ensure adequate spray coverage across the plant foliage.

Tips for use

Get the Best Results with Phozguard 620!

✅ Apply at the right time – Use as a preventative treatment before disease symptoms appear or at the first signs of infection for optimal control.

✅ Ensure thorough coverage – Spray evenly on all plant surfaces, including the undersides of leaves, for complete protection.

✅ Follow recommended dilution rates – Mix according to label instructions to avoid over-application and maximise effectiveness.

✅ Use in the right conditions – Apply in cool, calm weather to prevent evaporation and ensure maximum absorption.

✅ Combine with other treatments – Phozguard 620 is compatible with many agricultural chemicals, reducing the need for multiple spray applications.

✅ Monitor your plants – Regularly check for signs of disease and reapply as needed for ongoing protection.

🔹 Pro Tip: For best results, use Phozguard 620 as part of an integrated disease management plan, including good soil health, proper irrigation, and crop rotation.

Keep your crops protected and thriving with Phozguard 620 Systemic Fungicide!

Active Ingredients

620 g/L Phosphorous (Phosphonic) Acid as Mono- and Di-Potassium Phosphonate

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Frequently asked questions

What is Phozguard 620?

Phozguard 620 is a systemic fungicide containing 620 g/L phosphorous (phosphonic) acid as mono and di potassium phosphite (Caution poison). The label lists avocados, citrus, cucurbits, grapes, pineapples, poppies and ornamentals. It does not list lawns or home gardens.

What does the Phozguard 620 label list for ornamentals and crops?

For ornamentals the label lists phytophthora, root and crown rot as a foliar spray at 1.6 mL per litre of water by boom or knapsack, or 3 mL per litre by airblast. For cucurbits it lists downy mildew at 2.9 L per hectare, and for grapes downy mildew at 1.9 to 3.9 L per hectare.

What are the restrictions for Phozguard 620?

Do not apply at volumes that cause excessive run off, do not apply unless the wind speed is between 3 and 20 kilometres per hour, and do not apply during hazardous surface temperature inversions. A withholding period is not required for avocados, citrus, cucurbits, grapes and pineapples when used as directed; for poppies it is 6 weeks, and do not graze or cut subterranean clover for stock food for 14 days.

What are the safety warnings for Phozguard 620?

The label says the product is harmful to fish. When preparing and using the spray, wear cotton overalls buttoned to the neck and wrist, a washable hat, elbow-length PVC gloves, goggles and a disposable face mask.

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