Mycorrhiza In Citrus: What Causes Uneven Growth Of Citrus Fruit

Mycorrhiza In Citrus: What Causes Uneven Growth Of Citrus Fruit

By: Liz Baessler

Usually, fungus is a bad word when it comes to gardening. There are, however, some fungi that help plants and should be encouraged. One such fungus is called mycorrhiza. Mycorrhizal fungi have a special symbiotic relationship with citrus plants that is more or less essential for citrus growth.

Because of the positive mycorrhizal fungi effects on citrus, a lack or uneven spread of fungus can lead to unhealthy or lackluster trees and fruit. Keep reading to learn more about mycorrhiza in citrus and mycorrhizal fungi fertilizer.

Uneven Growth of Citrus Fruit

Mycorrhizal fungi grow in the soil and attach themselves to tree roots, where they thrive and spread. Citrus trees have especially short roots and root hairs, meaning they have less surface area for taking in water and nutrients. Mycorrhiza in citrus roots help to bring in extra water and nutrients that the roots can’t manage on their own, making for a healthier tree.

Unfortunately, a single mycorrhiza spore on your tree’s roots is not enough to make a difference. The fungus has to be directly attached to a root in order for its benefits to take place. Because of this, fungus growing on just one section of roots may result in uneven growth of citrus fruit, with the fruit on some branches bigger, healthier, and brighter (differing color) than on other branches of the same tree.

Mycorrhizal Fungi Effects on Citrus

If you notice uneven growth of citrus fruit, it may be caused by an uneven spread of mycorrhizal fungi on the roots. If this is the case, or if your citrus tree just seems to be failing, you should apply mycorrhizal fungi fertilizer to the soil.

This fertilizer is an inoculum, a small collection of spores that attach to the roots and grow into the beneficial fungus. Apply a lot of inoculum to many sites – they will grow and spread, but slowly. If you get a good coverage to begin with, your plant should perk up more quickly.

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