Product Update

Plant Health Care PLC
27 June 2007


Embargoed until 7AM, 27 June 2007


                             Plant Health Care plc
             Myconate(R) produces outstanding yield gains in wheat.


Plant Health Care (AIM: PHC.L), a leading provider of natural products for
plants and soil, is pleased to report the first independent results of its
Myconate(R) testing programmes in wheat. Following impressive results in many
and varied crops over the past several years, the results of these trials now
demonstrate the effectiveness of Myconate(R) in a new class of crops - the small
cereal grains. The Company now has compelling evidence of yield stimulation in
the two most important representatives of this class: wheat and sorghum.

During the 2006/2007 season, Myconate(R) was evaluated in three separate
independent wheat trials in Mexico; two in Baja and one in Sonora. These trials
were conducted by local farmers and distributed across a wide range of soil and
climate conditions for this crop.

In the Baja trials, the yield increases at the two locations were 21% and 16%;
this resulted in increased income for the grower of US$385 per hectare and
US$326 per hectare respectively. In these cases the trials involved large plot
sizes of 4 hectares (10 acres) so the response has been proven on growers farms
in a full commercial setting.

In Sonora, the trials were established to determine the effect of seed rate and
Myconate coating. In this test 20% less seed was planted in the Myconate treated
fields. The yield from both the control field and the Myconate reduced seed
fields were essentially identical (approximately a 23% yield increase on the
Myconate treated field when adjusted for seed rate) and the protein content of
the Myconate(R) treated wheat was increased by 8.5%. As a result, the increased
income to the grower for the higher yield and higher protein content would be
around US$600 per hectare.

Further results of our cereal testing including more wheat, sorghum and barley
trials are expected as the year progresses.

John Brady, CEO of Plant Health Care commented on the results, 'Once again
Myconate has proven its ability to consistently deliver improved yields in a
variety of crops and under differing soil and climatic conditions. We are
especially pleased to now have large scale tests results on the important cereal
grain crops which number in excess of 300 million acres in the North America,
Europe, South America and Southern Africa regions. All of this coincides with
planned timing for further Myconate supply agreements.'

Myconate background
Through the stimulation of endogenous mycorrhizal fungi, PHC's novel Myconate
technology helps crops to develop larger effective rooting volume. Myconate
works by triggering the germination and growth of beneficial micro-organisms
called mycorrhizal fungi which colonize the roots of crop plants. With more
mycorrhizal fungi at work, each plant can draw more nutrients and moisture out
of the soil. More nutrients make for healthier plants, and significantly
greater overall yields. The Board believes Myconate could be the key to
changing the face of farming. The safety and ease of application of Myconate
means that management practices need not be over-hauled. The procedure is a
straightforward blending process, either tank mixing the Myconate with the
fertilizer during planting, or applying the Myconate to the seed before
planting.


For further information please contact:

Plant Heath Care plc Tavistock Communications
John Brady, Chief Executive Jeremy Carey / Simon Compton
Tel: [phone] Tel: [phone]

Evolution Securities Limited
Tim Worlledge / Tim Redfern
Tel: [phone]



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