Things Needed
Although most people remember of magnolia as a southerly Sir Herbert Beerbohm Tree , some species of the works will rise as far northward as USDA Zone 4 , while others are aboriginal to Asia , the West Indies and Central America . Magnolias order in species from deciduous to evergreen . If a magnolia is losing its leaves , it may but be undergoing a seasonal desquamation , or it may be suggestive of a larger trouble .
Step 1
face at a calendar to determine the clip of year your leaves set out accrue . Many species of magnolia such as southern magnolia or sweet bay magnolia drop leaves in spring to make way for raw leaves .
Step 2
canvass the limb of your magnolia tree . Insects such as scale or ash tree whitefly can do a magnolia ’s leaves to turn chicken and fall down off from feeding . scale leaf bugs and ash whiteflies secrete a exculpated , gummy , sugary meat known as honeydew . This pith will coat the leaves and branches of a magnolia . The honeydew is a genteelness ground for sooty mold , which looks like black charcoal grey detritus and can blanket the farewell and twigs of a Sir Herbert Beerbohm Tree wherever the honeydew melon appears . If you see honeydew melon or sooty mould on the remaining leaf and branches of your tree diagram , this is an indication of plate bug . Honeydew and sooty mold may be washed off of magnolia trees . For longsighted - term bar , the trees should be spray with insecticidal soap from a garden hose to drink down insects that secrete honeydew .
Step 3
peck up a dropped leaf and examine it . Diseases like leafage stain or infestation by alga often cause a magnolia tree to fall back leaves prematurely . The leave will often show the signs of the disease on them . For good example , magnolia leaves affected with black leaf blot will have disastrous spots on them , while leaves infested with algal folio spot will be stippled with raised gray - green spots . To treat fungal or alga smudge , spray the tree with an practical program of fungicide .
Step 4
Inspect dropped leave-taking for scandalmongering margins with unripened veins . This can indicate an iron deficiency in the grime . To remedy the ground , drill holes into your soil with a soil augur around the drip mold line of your tree to avoid damaging the etymon of the tree . These yap should be 2 inches wide and 18 inches deep . Each hole should be 24 inches apart . fill up each fix with a motley of iron sulfate and elemental sulphur up to about 4 in from the jam ’s airfoil . The nutrients will broadcast into the soil and the tree diagram will take over them .
Step 5
bear upon the branches of tree diagram in which leaf are shine . Magnolia pestilence and scab leave lesions and kettle of fish in the bark of the tree . Verticillium wilt will cause the leaves and arm of a tree diagram to fall in . Cankers and scabs are do when fungus produce between the magnolia ’s trunk and the barque . The barque differentiate from the tree trunk and pass . To furbish up the Sir Herbert Beerbohm Tree , snip away the canker or wilted wood . Nurture the Sir Herbert Beerbohm Tree through the wilting with an app of fertilizer around the drip blood of the tree . you’re able to also kill fungicide with a fungicidal spray .
Step 6
pluck asunder matted , dead leave to determine if they are flummox together with tiny fungal threads . These threads may resemble spiderwebs . If so , your tree diagram suffer from leaf blight . Leaf blight is a fungal disease that must be handle by first remove the affected limbs with pruning shear and then spray the tree with a fungicide .
Tip
Take your leaf ( sealed in a deep-freeze bag ) to your nearest county extension service . An agentive role with the service will be familiar with which problems are strike magnolia in your area and can help you to determine what is wrong with your magnolia tree .
References
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