Mango trees lose their leaves. Due to fickle weather and several diseases, mango trees shed their leaves on the ground.
Even though mango leaves have a broadleaf evergreen structure, they still have tendencies of creating leaf litter periodically. Mango trees have large leathery leaves with 5 to 16 inches in length and have the capacity to remain in the tree for a year or more.
The leaves of the mango trees do not just lose their leaves because of strong wind or a storm. Fallen leaves are the result of many factors distorting its main foliage.
Reasons Why Mango Trees Lose Their Leaves
A parasitic alga produces spots that can cause greenish-gray speckles on stems and foliage. Over time, these spots will turn into red pigments and cankers will start appearing on the parts of the bark. The stems will slowly die as the cankers thicken in the tree.
However, alga spots are not serious cases of foliage damage since there are fungicides that can prevent its attacks and other parasitic problems if applied regularly. Keeping the tree well-maintained and sanitized will also save the mango tree from alga spots.
Try to have a consistent schedule of removing the weeds and other external sprouts. Cut the dead or diseased stems and leaves from the tree, and sweep away the debris on the ground where the mango tree is currently planted.
Powdery mildew is a powder-like white growth found in the leaves of a mango tree. It is a fungal disease that usually plagues in dry weather or spring season.
The infected parts of the tree become covered with the powdery-growth particles. The leaves will start to distort, wilt, and eventually die. When the infestation becomes severe and dominant, the entire mango tree may end up fully defoliated.
To prevent the worst-case scenario, there are preventive fungal sprays that can interrupt the powdery mildew’s enormous growth.
If the powdery mildew already reached the fruit, it can still be saved by using chemical treatments that could remove the fungal pathogen and control the concentration of the infected parts.
Verticillium albo-atrium are soil-borne fungal pathogens that attack mango trees planted in parasite-penetrated soil. The infections will start from the roots and ail the mango tree’s vascular system that will give birth to a water stress-like symptom.
Wilted leaves will die at a specific side of the tree while still clinging to the infested twigs or branches. Diebacks on twigs will take place and the mango tree’s growth will be hindered.
The vascular discoloration is revealed through longitudinal cuts from the infected branches.
Sadly, there is no official treatment that can stop verticillium wilt from attacking the plants. However, it can still be averted by fending off any potential pathogens in a solarized soil.
Colletotrichum gloeosporioides is a fungal pathogen that causes anthracnose in the mango tree. The first symptoms of this type of disease include:
- Fruit rot
- Flower blight, and
- Leaf spot.
Small dark-colored spots will develop on the clusters of the flowers that will later enlarge, killing the blooms and decreasing the production of crops.
The leaves will have small dark spots that expand until an entire leaf is engulfed. Anthracnose also causes diebacks on twigs and can form dark lesions.
Growing resistant cultivars and spraying anti-fungal solutions can help get rid of the anthracnose disease from the leaves, stems, and flowers.
Factors to Consider in Growing a Healthy Mango Tree
You must water your mango tree regularly. Water it several times a week during dry seasons but do not overdo it as the soil can get soggy and consequently cause rot in the roots.
Also, the mango seed needs adequate water to maintain moisture and trigger a sprout.
Temperature and Humidity
Mango trees thrive best in above 50% humidity level. Try your best to keep the tree as warm as possible and maintain an environment of 50 degrees Fahrenheit.
Mango trees are prone to defoliation when it is highly exposed to temperatures below 40 degrees because they cannot tolerate the frost.
Provide your mango tree with a fertilizer that has a weak liquid formula to help it grow. Avoid applying appetizer more than once a month to prevent unwanted results.
When the mango tree flowers start to bloom, put a pinch of fertilizer with low nitrogen content and high phosphorus and potassium content.
Mango seedlings need regular exposure to bright light. As the tree starts to mature, its light requirements also increase.
Mango trees require at least six to ten hours of sun daily. Place the mango tree in a south-facing area to give it better absorption of sunlight.
Peat-based potting soil with sufficient drainage capacity is highly advised when growing a mango tree plant. It dries easily after watering, and you will not have to worry about clogs that can kill your plant.
If you are growing a mango tree from seedlings, make sure you regularly check its roots and repotting if there is a need to do so. However, it is better to avoid placing them in a large pot while waiting for the beginning of the second growing season.
Mango trees will develop larger stems and branches within four to five years of planting.
When the roots no longer fit in the pot, transfer it to a suitable container or in a spot in your backyard that has enough space. The mango tree can develop root-bounds as it grows.
No matter how thick and evergreen, mango tree leaves will still fall from its trunk if proper action and care are not given.
Mango trees thrive in tropical areas where they are free from cold weather, but they are still vulnerable to other damaging factors such as tree diseases brought about by several potential fungal pathogens.
With regular water, enough sun exposure, a balanced temperature, and toxic-free plant fertilizers, mango trees can grow healthy and fight off dangerous radicals. Mango trees also need patience, dedication, and tender loving care for them to thrive.