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Catfaced tomatoes are deformed to a greater or lesser extent, having deep grooves running from the blossom end all the way around to the stem. The condition results from cool weather while the plant is in blossom. Tomato varieties with large fruit are most
 

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Tomato Quirks Part 1 â€" Catfacing


This article begins the series on Tomato Quirks. Each article in the series will feature a common tomato quirk you may find in your vegetable garden. Tomato quirks are typically abnormalities that are found while growing tomatoes. They are usually harmless, but they may produce strange looking tomatoes. Part one focuses on Catfacing. Below is a list of the rest of the articles from the Tomato Quirks series.

Read the full article >> http://www.veggiegardener.com/tomato-quirks-catfacing/


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Catfacing Causes

The causes of catfacing on your tomatoes and what to do.

Insect damage, poor pollination, and environmental factors all cause catfacing, a term that describes the puckering, scarring, and deformation of strawberries, stone fruits, and tomatoes. You can recognize catfacing in tomatoes by the scarred indentations found on the blossom end of the fruit. Sometimes this scarring extends deep into the fruit cavity, making much of the fruit inedible.

The most common cause of catfacing in tomatoes is exposure to temperatures below 50 degrees F during flowering and fruit set. Low temperatures inhibit pollination and cause the blossom to stick to the developing fruit. Both of these factors prevent certain parts of the fruit from developing. The undesirable scarring and indentation occurs when unaffected parts of the fruit continue to expand.

Tomatoes that develop during warm weather do not usually experience catfacing problems. However, evidence suggests that even when temperatures are warm, excessive soil nitrogen, exposure to the pesticide 2,4-D, and erratic soil moisture can cause catfacing.

Some cultivars and varieties, including many heirlooms, are more susceptible to catfacing. You can avoid the problem by choosing resistant varieties, such as 'Homestead' and 'Monte Carlo'. If your favorite varieties are susceptible but you'd still like to grow them, either protect your transplants with cloches in cold weather or wait until day and evening temperatures are consistently warm to plant them. Catfaced tomatoes are safe to eat; simply cut away the scarred areas.

http://www.organicgardening.com/learn-and-grow/catfacing-causes
 
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