How many approved sources does Phosphorous Acid have in Australia?

As of the APVMA export downloaded 2026-10-23, no current active constituent approval was found under this name.

Who registers Phosphorous Acid products in Australia?

As of the APVMA export downloaded 2026-10-23, 1 company registers 1 agricultural product containing Phosphorous Acid. The most products are registered by UPL Australia Pty Ltd.

When does data protection end for Phosphorous Acid?

As of the APVMA export downloaded 2026-10-23, the latest protected data for a product containing Phosphorous Acid ends on 2029-06-13. Protection covers specific data, not the active itself.

Which crops is Phosphorous Acid registered for in Australia?

Registered labels containing Phosphorous Acid most often cover Avocado. The label is what applies.

Phosphorous Acidpresent as mono + diammonium phosphite

Chemical group not statedSalt or ester form

1 registered product from 1 registrant.

No source approval under this name

Approved sources: 0
Registered products: 1
Registrants: 1
Data protection ends: 2029-06-13

Market structure

Who registers it

Also holds a source approvalRegisters only

UPL Australia Pty Ltd1

Market timeline

Registered products, cumulative

Year	Sources approved	Products first registered	Products, cumulative
2024	0	1	1

Only records current in the export are counted, so earlier years are understated.

Who to talk to

Register products, hold no approval1

Their products rely on a source approved for another company.

UPL Australia Pty Ltd1 product

Hold an approval and register products

Approval holders that also sell products under their own name.

None in the export.

Hold an approval, no products

Holders with no registered product of their own containing it.

None in the export.

0 approved sources

No current active constituent approval found in the export. It may sit under another name; search PubCRIS before concluding there is none.

1 registrant

Registrant	Products	Holds an approval
UPL Australia Pty Ltd	1	No

1 registered product

No.	Product	Registrant	Formulation	Content	First registered	Label
93201	Prowess Fungicide	UPL Australia Pty Ltd	Soluble Concentrate	300 g/L	2024-06-13	PDF

Crops and targets

Crops and situations

Avocado1

Targets

Root rot - phytophthora cinnamomi1

Number of registered products whose label covers each crop or target, not volumes. The label is what applies.

Changes in the last six months

Nothing new in the last six months.

Quick answers

How many approved sources does Phosphorous Acid have in Australia?: As of the APVMA export downloaded 2026-10-23, no current active constituent approval was found under this name.
Who registers Phosphorous Acid products in Australia?: As of the APVMA export downloaded 2026-10-23, 1 company registers 1 agricultural product containing Phosphorous Acid. The most products are registered by UPL Australia Pty Ltd.
When does data protection end for Phosphorous Acid?: As of the APVMA export downloaded 2026-10-23, the latest protected data for a product containing Phosphorous Acid ends on 2029-06-13. Protection covers specific data, not the active itself.
Which crops is Phosphorous Acid registered for in Australia?: Registered labels containing Phosphorous Acid most often cover Avocado. The label is what applies.