photo credit: audreyjm529 Overall, if given a rest period during the year and watered and fertilized properly the Shamrock will live for many years. If you notice your plant looks a little weak or seems to be suffering there are two plant diseases that affect the shamrock plant.

Shamrock Plant Disease

Fungal Rust can be diagnosed when you notice an obvious orange color on the underside of the leaves. Treatment: I remove the plant from the pot and clean the pot thoroughly. If you feel the plant needs repotted this it the time to do so.

Before placing the plant back in its pot wash the plant carefully with a mix of neem oil. Neem oil is not one of the toxic chemicals that many people use so I feel its safe to use and its good for several other forms of plant diseases too.

After placing the plant back in the pot remove the top layer of soil and replace with fresh soil. Water the plant lightly with a chamomile tea mix. If your plant has really suffered you may want to take extra measures. This site has information on common plant disease

Spider Mites are a common problem on the shamrock plant.  These insect parasites are small mites that are almost not visible. They produce a little white webbing that is sticky. They seem to choose to hide and live under leaves and in the joints of stems.

You need to remedy the problem as quickly as possible or they will spread. A spider mite sucks the juice out of the plant and weakens it. If left untreated the plant will slowly die.

If you suspect mites, there are two treatments.  A home remedy of water a few drops of dish soap and a touch of garlic will stop the mites. If the mites are quite large touching them with Sea Breeze that is placed on a Q-tip will kill the bug.

You can treat the plant with Bayer Advanced Tree and Shrub Insecticide.  Mix this product with water as directed and pour on the soil around the base of the plant.  It will kill the bugs within a week or so.  The plus to this product is that it provides protection from reinfestation for up to a year.

Note: Make sure you remove any old or infected soil from the top of the pot.

For more information on this plant check Shamrock Plant Care and The Shamrock Plant

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© Denise for The Gardener's Rake, 2009. | Permalink | 6 comments | Add to del.icio.us
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