mandarin skin crack - Knowledgebase Question

spring valley, Ca
Question by anatur35
January 18, 2010
Our satsuma mandarin is 3 years old. It was great for two seasons and went down hill this season. All the fruits (more than 100) had


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Answer from NGA
January 18, 2010

0

There may be one or more problems associated with cracking of the skin of your mandarins. Wide fluctuations in soil moisture is the most common cause. Although your tree is on an automatic watering system, the soil may not be draining well and may become flooded when the tree is not actively growing (and requiring lots of water). The only way to determine whether or not this is happening is to dig down into the soil about 18" to see how moist/damp it remains. Sunscald can also cause cracking, as can rapid growth, where the little sacs within the fruit become swollen with fluids to the point where the skin bursts. I can't really recommend a solution other than to be careful with your watering, especially during the summer when the fruits are enlarging. You might want to apply water less frequently, but allow the water to run for a longer time to ensure the root mass is entirely wet each time you do water. Hope next year's crop is better!

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