What are the symptoms & treatment for Pythium/Root Rot?
Pythium thrives in a root zone deprived of oxygen. This is generally caused by over-watering. Pythium discolours the roots. The discolouration progresses from light to dark brown. Eventually the roots will become rotten. The symptoms can also be seen in the leaves. Spots and discolouration turn to necrosis of the leaves and in severe cases the stem can also be affected. It is important to maintain hygiene in the growing environment, and as with all plant diseases prevention is better than cure. Using products like Rhizotonic and Trichoderma in the growing medium help to strengthen the immune system of the plants making them more resistant to infection. Treating pythium is difficult. Systemic fungicides like Fongarid TM are also useful in controlling Pythium.
