Despite its association with holiday cheer , mistletoe is in reality pretty malefic .

Invasive specie can spread to your woody ornamental and hardwood tree and percolate away their resources , which leaves them stunted , damaged , and vulnerable to health issue and pest infestation .

For those who had no idea , it ’s a sturdy pill to immerse , that – in the garden , at least – these plants are often our enemies .

A close up horizontal image of a large clump of parasitic mistletoe growing on a tree branch.

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Non - native mistletoe are bad news , folk . The cue were right in front of us all along . And even native specie can have a nervous strain on plants .

For one , their specialised beginning are absolutely adapt for penetrating host plant to extract water and nutrients . to boot , their seeds can spread through bird droppings or they may be propelled via explosive fruits all too easy .

A vertical image of a tree with a number of clumps of mistletoe growing on the branches. To the top and bottom of the frame is green and white printed text.

And finally , you recognise that far-famed song of Jimmy Boyd ’s about mommy ’s kiss with Santa Claus find underneath the mistletoe ? Personally , I like to reckon the affair was all the mistletoe ’s fault …

so as to keep this pesky plant life from harming your trees and shrubs , it ’s important to know what it look like , what it can do to your plantings , and how to handle its bearing in the garden .

This usher will treat all of that and more . Here ’s a preview of everything we ’ll cover up ahead :

A close up horizontal image of the berries and foliage of mistletoe growing outdoors on a tree.

What You’ll Learn

Mistletoe 101

When it comes to mistletoe , you ’ve believably discover of it much more often than you ’ve actually encountered it , especiallyif you grew up listening to Christmas music .

The many plants normally recognize as mistletoe are n’t a individual species , within the same genus , or even a part of the same family .

From the order Santalaes , there are three family of plant which admit species that are considered mistletoes : the showy Loranthaceae , the Misodendraceae , and the Santalaceae , or sandalwood .

A close up horizontal image of an invasive mistletoe plant pictured on a soft focus background.

For kinsfolk in North America , infestation of Loranthaceae and Misodedraceae mistletoes are uncommon – we ’ll focalise on specie from the Santalaceae family here .

For those who dislike all that fancy botanical terminology , the two principal group to keep in judgment are the broadleaf and the dwarf mistletoes .

The broadleaf or leafy mistletoes , Phoradendronspecies from the Santalaceae family , have thick elliptical leaves and green woody staunch .

A horizontal image of mistletoe growing on the branches of a defoliated tree pictured on a blue sky background.

Typically growing into rounded thump at least two foot in diam , they arehemiparasitic , meaning they do n’t take in all of their energy from their legion . They do execute some photosynthesis , but their nutrition is in part cadge from host works .

Many of these are species native to the US , and some gardener may even choose to cultivate them purposely in certain regions . You canread more about this appendage in our guide .

This group ’s seeds are produced within overweight fruits , which birds consume and spread via their droppings . Because the birds can pass significant amounts of time feeding around and excreting within the same specimen , heavy plague can pass rather quick when the ejaculate bourgeon .

A vertical image of a tree with clumps of invasive mistletoe growing on the branches pictured on a blue sky background.

midget mistletoes , on the other hand , have pocket-size , scaly leaves of varied colors , and tender stems that are generally under eight in long . These areArceuthobiumspecies , from the same plant class as the above - draw industrial plant .

They exclusively parasitize conifers as true parasites , meaning all of their zip comes from their hosts . Seed scatter occurs via their explosive fruit , which propel seeds outwards up to 40 foot away .

Mistletoes produce modified roots calledhaustoria , which can pass through legion tissue to extract water and nutrients , provide sustenance .

A close up horizontal image of the foliage and white berries of mistletoe pictured on a soft focus background.

Naturally , the hosts do n’t like having their resources forcibly extracted while these sponge hang around rent - liberal .

good for you plants may be capable to sustain an plague while others will meet as a result of this resource share-out and conk out back .

Signs of Infestation

It ’s easiest to spot infestation in deciduous works during winter sleeping , when they ’re unfinished .

Thankfully , the front of mistletoes does n’t always spell cataclysm , since salubrious specimens can actually handle a brace of ’em without suffering huge consequences .

Along with the actual vegetative body of the leech , there are some signs you should keep an centre out for .

A close up horizontal image of a tree covered in clumps of invasive mistletoe pictured on a blue sky background.

Parasitized arm typically modernise hypertrophic bump where the haustoria attach , and the arm beyond the attachment site will often wither and fall off .

A “ witches’-broom ” of densely - packed , small , and malformed branch at the fastening internet site may also be present .

The rest of the infested ramification will probably be stunted or bolt down in time , but the industrial plant as a whole will keep on chugging .

A close up horizontal image of a clump of mistletoe growing on the branch of a tree pictured on a blue sky background.

It ’s the sonorous infestation that are elusive – systemic weakening , scrawny growth , and increased vulnerability to pests and pathogen are all common symptoms .

None of these will necessarily kill the plant instantaneously , but immix these issues with other problem such as disease or drought , and untimely death can easily occur .

Even if an infested plant does n’t perish , it surely wo n’t seem or grow its best .

A close up horizontal image of a clump of native mistletoe with white berries growing on a dry tree branch.

Management Methods

Once you ’ve identified the infestations in your garden , it ’s time to concoct a program of fire . allow ’s dive into some efficient approaches .

Appreciation

Just like with bullies , a hearty strategy for dealing with mistletoes is to not let them faze you .

This may seem a routine backwards , since I ’ve fundamentally been bad - mouthing them up to this point . But , as much as it hurt me to say , mistletoe does in fact have some ecologic benefits .

Native specie support aboriginal wildlife . inquiry has shownthat these parasites provide food , cover , and nesting sites for insects , chick , and little mammals .

A square image of a gardener using a high reach pole saw to trim branches off a tree in winter.

to boot , their presence tends toattract a concourse of different species , which indicates a salubrious ecosystem .

They also benefit us humans : they ’ve influenced our mythologies , custom , and vacation decoration . Plus , they can be kinda cool to seem at in winter , if you like rounded puffs of greenery in otherwise barren tree , with a few white berries here and there .

But do n’t expect to see red berries – the plant that produces those isViscum cruciatum , a species native to Europe .

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So , if you only have a few plants infesting your landscape here and there and the specimen seems to be doing pretty well otherwise , there ’s nothing wrong with inactivity . you’re able to always act if their growth becomes tough later .

Chemical Control

“ Forget all that , ” you may dissent . “ I want these thingsgone ! ”

Fair enough . In that case , the industrial plant growth governor ethephon can be spray like a shot on mistletoe to cause it to come away from emcee plants while set ontogeny and seed production .

Ethephon advance product of the naturally - come hormone ethene , which trammel shank extension , speeds up ripening , and induces senescence . But it ’s deserving a mention that premature leaf drop-off and rock-bottom outgrowth can also hap in host plant that are exposed to the product .

A close up horizontal image of a clump of mistletoe hanging from the branch of a tree.

mention that in humans , this intersection also has the potential to do stern skin and heart annoying .

The best meter to apply it is in springiness when daytime temperature are above 65 ° F , butbeforethe host start putting out young shoots that could block your nebuliser .

This is only a temporary result , however – you ’ll need to reapply ethephon when the sponge grows back . But there ’s no deny its efficaciousness in the short term .

The potential for legion plant damage here definitely endorsement calling up a pro to help .

If you have a licenced tree surgeon on speed telephone dial or the experience and know - how to do it yourself , have at it . Just make indisputable to follow the product ’s pedagogy closely if you go the DIY path .

Mechanical Control

Pruning and manual removal is the most effective way of life to free the host of the parasite and prevent further feast .

Remove infested branch with a sterilized cutting or saw tool .

you’re able to experience free to remove a single ramification or two whenever you hap to notice an infestation , but larger - scale pruning should take place in other spring .

Make the cut at the branch ’s origin or where it meets a enceinte lateral limb .

embed haustorium can be rather prospicient . To stay put on the safe side , make your pruning cuts above a node that ’s at least a foot low than the haustoria ’s adherence point .

This job may also be dispatch with the help of a professional tree surgeon .

Hi - Reach Pole see to it

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If a branch ca n’t be transfer , cut away as much of the false mistletoe as possible without cutting into the wood of the legion plant .

After that , enclose the plague site with a couple layers of inglorious polyethylene , then tape or wed the wrapping so it ’s secure .

This will halt light from reaching any hemiparasitic broadleaf mistletoe , hindering photosynthesis .

But the technique does n’t work for their nanus relatives , since they do n’t make any of their own energy – for them , you ’ll have to prune the entire branch to break up the job .

Polyethylene Sheeting

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For a severely infested specimen that ’s beyond saving , it ’s probably wise to remove it from the landscape altogether so it will no longer be a source of viable Old World mistletoe source .

Prevention

need to save some prison term in the future ? All of the above management steps are n’t required if you never have an infestation in the first place !

And when it come to forestall these leech from gaining a fastness in your landscape , your best stakes is to apply mistletoe - resistant species .

Such plant include , but are n’t limited to :

These spoiled boys also make groovy replacements for any infested flora that you have to withdraw .

The more common people in your domain develop insubordinate plants , the less probable it is that your property ’s landscape will put up an infestation . So launch the Holy Writ to your neighbors !

declamatory - scale modification may take pitching resistant plantings to your local government center and homeowners associations , or some good ol’-fashioned petitioning .

One Final Reason for Control

A first osculation should n’t be forced , people . It need to happen organically .

Hypothetically , if I ’m showing a date around my entirely awing wintertime landscape – holiday Hallmark motion picture - style – the last matter I need is the pressure level of happening upon some mistletoe literally hanging over my head .

You got ta put on lip balm , check your breath , tilt your question just so … there ’s a slew that need to occur before lip - lockup should occur .

But if the presence of mistletoe forces a smooch too ahead of time , it ’s all over . Then the other person will just thrust your chapped back talk by and demand why your breath smells like peanut butter . Hypothetically .

Absurd , perhaps , yet a powerful incentive nonetheless … But in all sincerity , you may now manage this parasite ! extolment .

Looking for a fiddling management to check other invading plants in the landscape ? build up yourself with noesis and scan these guides next :

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Joe Butler