Holding(s) in Company

TR-1: NOTIFICATION OF MAJOR INTEREST IN SHARESi

1. Identity of the issuer or the underlying issuerof existing shares to which voting rights areattached: ii

Plant Health Care plc

2 Reason for the notification (please tick the appropriate box or boxes):

An acquisition or disposal of voting rights

√

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

An acquisition or disposal of instruments with similar economic effect to qualifying financial instruments

An event changing the breakdown of voting rights

Other (please specify):

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

Gartmore Investment Limited

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

HSBC Global Custody Nominee UK Ltd (2.162%)

Nortrust Nominees Limited (3.446%)

Goldman Sachs Nominees Ltd (1.654%)

Vidacos Nominees Ltd A/C 2303(4.818%)

5. Date of the transaction and date onwhich the threshold is crossed orreached: v

10 December 2010

6. Date on which issuer notified:

13 December 2010

7. Threshold(s) that is/are crossed orreached: vi, vii

13%

8. Notified details:

A: Voting rights attached to shares viii, ix

Class/type ofshares

if possible usingthe ISIN CODE

Situation previousto the triggeringtransaction

Resulting situation after the triggering transaction

NumberofShares

NumberofVotingRights

Numberof shares

Number of votingrights

% of voting rights x

Direct

Direct xi

Indirect xii

Direct

Indirect

GB00B01JC540

6,399,305

6,399,305

6,393,152

6,393,152

12.080%

B: Qualifying Financial Instruments

Resulting situation after the triggering transaction

Type of financialinstrument

Expirationdate xiii

Exercise/Conversion Period xiv

Number of votingrights that may beacquired if theinstrument isexercised/ converted.

% of votingrights

C: Financial Instruments with similar economic effect to Qualifying Financial Instruments xv, xvi

Resulting situation after the triggering transaction

Type of financialinstrument

Exercise price

Expiration date xvii

Exercise/Conversion period xviii

Number of voting rights instrument refers to

% of voting rights xix, xx

Nominal

Delta

Total (A+B+C)

Number of voting rights

Percentage of voting rights

6,393,152

12.080%

9. Chain of controlled undertakings through which the voting rights and/or thefinancial instruments are effectively held, if applicable: xxi

Proxy Voting:

10. Name of the proxy holder:

11. Number of voting rights proxy holder will ceaseto hold:

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

13. Additional information:

All figures are based on the Company's issued share capital of 52,922,782 as provided by Exshare

E mail contact [email protected]

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) +44 (0)20 8866 5702

(ii) +44 (0)20 7071 4300

(iii) +44 (0)20 7920 3150

Note: Annex should only be submitted to the FSA not the issuer

Annex: Notification of major interests in share

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

Full name

(including legal form of legal entities)

Gartmore Investment Limited

Contact address

(registered office for legal entities)

Gartmore House, 8 Fenchurch Place, London EC2M 4PB

Phone number & email

0207 782 2224

Other useful information

(at least legal representative for legal persons)

Gavin Clark

B: Identity of the notifier, if applicable

Full name

Contact address

Phone number & email

Other useful information

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

C: Additional information

For notes on how to complete form TR-1 please see the FSA website.