blossom-rot_1552359992073

What is Blossom End Rot (Tomatoes)

A common disorder in tomatoes is blossom-end rot in which the fruit becomes sunken and blackened.  This condition is caused by lack of calcium in the developing fruit. 

Over-watering should be avoided, however, because root absorption may be less efficient. 

 

Symptoms

Black and sunken rotted sections at base of fruit.

 

How to protect your plants

Blossom-end rot is aggravated by moisture stress in very hot weather, so regular watering and mulching of the surface will help control the problem.  An application of lime or gypsum (calcium sulfate) to the bed before planting will lessen the incidence of this disorder.

 

Plants impacted

  • Tomatoes

Recommended products

Yates Thrive Natural Dolomite Lime

A certified input for organic gardening, that contains natural dolomite lime (calcium and magnesium carbonate). to gently raise the pH of acid soils.

Yates Thrive Natural Garden Lime

A certified input for organic gardening that contains natural lime (calcium carbonate) from Te Kuiti, in the King Country, to adjust soil acidity.


More articles

Early Blight of Tomatoes

Early Blight of Tomatoes is a fungal disease which mostly affects tomatoes and potatoes causing reduced plant health and vigour, and even plant death.

Tomato Fruit Worm

If you have holes in your tomato, the culprit is likely to be the tomato fruit worm. Here's how to identify and control the tomato fruit worm in your garden.

Corn Earworm

If the kernels of your corn are being eaten while still on the stalk, it sounds like you a case of corn ear worm. Here's how to identify and treat them in your garden.

Powdery Mildew

Powdery mildew is a fungus which spreads a white or ash-grey film over the upper and lower surfaces of the leaves of plants-usually the older leaves.