Notification of Shareholding

Plant Health Care PLC
19 December 2007


TR-1(i): NOTIFICATION OF MAJOR INTERESTS IN SHARES

1. Identity of the issuer or the underlying issuer of existing shares to which
voting rights are attached (ii):

PLANT HEALTH CARE plc

2. Reason for the notification (please state Yes/No): ( )

An acquisition or disposal of voting rights: (YES)

An acquisition or disposal of financial instruments which may result in the
acquisition of shares already issued to which voting rights are attached: ( )

An event changing the breakdown of voting rights: ( )

Other (please specify): ()

3. Full name of person(s) subject to the notification obligation (iii):


Aviva plc & its subsidiaries


4. Full name of shareholder(s) (if different from 3.) (iv):

Registerd holder:

CUIM Nominee Limited 61,265*

* denotes direct interest

Delta Lloyd Luxembourg Water & Climate Fund 146,000

Kadoorie McAuley International Limited 12,400

Ohra Milieutechnologie Fonds NV 132,500

Triodos Value Pioneer Fund 137,500

Vidacos Nominees Limited 1,838,816



5. Date of the transaction (and date on which the threshold is crossed or
reached if different) (v):


12 December 2007


6. Date on which issuer notified:

14 December 2007



7. Threshold(s) that is/are crossed or reached:


Below 5% to 5% Change at Combined Interest level



8. Notified details:

A: Voting rights attached to shares

Class/type of shares if  Situation previous to the Triggering transaction (vi)
possible using the ISIN
CODE
                                       Number of                       Number of
                                        shares                     voting Rights
                                                                        (viii)


GB00B01JC540                          Below 5%                        Below 5%


Resulting situation after the triggering transaction (vii)
Class/type of      Number of Number of voting rights (ix)   % of voting rights
shares if possible  shares
using the ISIN
CODE

                    Direct    Direct (x)    Indirect (xi)   Direct    Indirect


GB00B01JC540        61,265        61,265        2,267,216     0.14%       5.13%



B: Financial Instruments


Resulting situation after the triggering transaction (xii)

Type of      Expiration Exercise/      Number of voting rights that may % of
financial    Date       Conversion     be acquired if the instrument is voting
instrument   (xiii)     Period/Date    exercised/ converted.            rights
                        (xiv)



Total (A+B)


                                     Number of                       % of voting
                               voting rights                            rights


                                   2,328,481                              5.27%



9. Chain of controlled undertakings through which the voting rights and/or the
financial instruments
are effectively held, if applicable (xv):

See Section 4

Proxy Voting:

10. Name of the proxy holder:

See Section 4

11. Number of voting rights proxy holder will cease to hold:

12. Date on which proxy holder will cease to hold voting rights:

13. Additional information:

Figures are based on a total number of voting rights of 44,214,229.

14. Contact name:

(i) Andrew Wood FCIS, Company Secretary

(II) Tim Redfern, Evolution Securities Limited

(iii) Jeremy Carey, Tavistock Communications

15. Contact telephone number:

(i)                   [phone]
(ii)                 [phone]
(iii)                [phone]

Annex to Notification Of Major Interests In Shares (xvi)

A: Identity of the person or legal entity subject to the notification obligation

Full name (including legal form for legal entities):

Aviva plc

Contact address (registered office for legal entities):

St Helen's, 1 Undershaft, London EC3P 3DQ

Phone number:

01603 684420

Other useful information (at least legal representative for legal persons):

Neil Whittaker

B: Identity of the notifier, if applicable (xvii)

Full name:

Contact address:


Phone number:

Other useful information (e.g. functional relationship with the person or legal
entity subject to the notification obligation)

END


19 December 2007



                      This information is provided by RNS
            The company news service from the London Stock Exchange
      OLVKLBFDLBEFBV