|By goGreen | January 30, 2012|
Tomatoes aren’t always the easiest vegetables to grow. A number of problems can affect tomato plants, decreasing harvest and causing headaches for gardeners.
Tomato blight is a fungus-like pathogen that attacks the plants. Signs of blight are brown spots or lesions and a white fungal growth. If blight is found on plants, the plants should be discarded. However, any green tomatoes on the plants can still be picked and allowed to ripen indoors.
Blossom End Rot
Blossom end rot is when a dry, deep decay develops on the blossom end of the tomato. It is caused by low calcium levels in the tomato and can be difficult to correct. Instead, properly prepare soil prior to planting to prevent this condition.
Aphids, psyllids and hornworms can attack tomato plants. Judy Sedbrook, a master gardener with the Colorado State University Cooperative Extension, says that all can be controlled with insecticidal soap, which can be found in hardware stores and gardening centers.
Leaf curl is when leaves at the bottom of the plant begin to roll upward and become thick, and can be caused by periods of cool, rainy weather. Fortunately, it does not affect plant growth or fruit production.
Cracking occurs after a period of wet weather, followed by a dry spell. While there’s no way to repair the damage, cracking can be prevented with regular watering.