So , there is your colorful begonia sitting proudly at the recess of your home . You feel happy how this plant has made your sprightliness bright and calm specially on grim days .
But suddenly , you see those awing brown fleck take shape in its leave . You get a little surprised and panic .
Your next subjugation would be to make love what cause those brown billet to come along . Well , worry no more because this article will help you figure matter out .
The possible reasons whybrown spots come along on the farewell of your begoniaare the fall out : excess light , temperature stress , pest plague , disease . Whatever the cause is , you need to take a serial publication of action to cure your begonia .
Keep reading and I ’ll explain compass point by point how each case leads to the establishment of those undesirable brownish spot .
mental object
How to Identify Begonia Brown Spots?
The type of chocolate-brown spots you see on the leaves of your begonia will most in all probability give you hints to know the potential cause . Here ’s a unsubdivided guidebook on how to retrieve out the cause .
First , locate where the brown spot appear . Are they on the mature leaves or the young ones ? Or are they on the centre of the Earth’s surface , at the tips , or all over the leave ?
Next , see how big and how many brown spots are . Are they big or small ? Are there many of them or just a few ?
Third , investigate how they look . Are they water - soaked , wry , or brickly ? What ’s the color ? Are there annulus and rings around the spots ?
These things will help oneself you diagnose the crusade of why brown spots seem in your begonia leaves . By mere observation of the symptoms , you could fairly suspect what the material job is .
Why Does My Begonia Have Brown Spots?
Generally , grow begonia is easy . It expand in a all-encompassing variety of climate and can withstand even unfavorable conditions .
However , there are some instance when your begonia get susceptible and it becomes prostrate to stress .
Those stressor make the plant weak . But how ? Well , lease ’s dive into a more detailed discussion of that part .
Here ’s a list of the uncouth reason why brown musca volitans appear in the leaves of your once beautiful begonia industrial plant .
Excess Light
The unaccented requirement of begonias depends on which type of subgroup your on - hand plant belong to .
It can be fibrous - rooted , rhizomatous , and tuberous begonias . They can expand in places with brilliant , indirect light , semi - shade , or half – spook .
Because they ’re more acquainted with having shades , verbatim exposure to sunshine can be detrimental .
The unattackable light chroma can damage the leafage . As a result , it develop leaf singe on its open reflected as large brownish spots .
Scorches may come along not only at the gist of the leaves but even in the margin and veins . At times , it can lead the entire leaf to wilt , perish , and fall off .
Relocate your plant somewhere more shaded . If it ’s turn up outside your home and the light intensity is stronger than usual , bring it back inside .
If it ’s near a windowpane and the high temperature radiates from the trash , put a bold curtain in between .
Another option is for you to move your begonia away from the window when the brightness receive too hopeful and strong .
you may just put it back once the light stipulation gets more passable like during the other morning and late afternoon .
That manner , you’re able to save it from absorb excess sluttish energy that can potentially damage the cellular telephone .
Temperature Stress
Begonia plants choose a temperature that ’s within the range of 59 to 79oF ( 15 to 26oC ) . It will not tolerate a very cold temperature because it ’s not frost - large-minded .
If your plant life gets exposed to sudden and drastic change in temperature , chances are its leaves will crystallise .
At night , when it ’s too cold , begonia leaves can get stock-still . When the Clarence Day arrives and the temperature elevates again , the leaves will thaw . That process will cause severe damage to the plant tissues .
Insulate your plant during times of extreme coldness . apply cotton wool rag to protect them from getting frozen .
Keep them aside from drafty locations like near air conditioners , fireplaces , windy windows , etc .
Pest Infestation
Although pesterer are n’t much of a job for begonia , the bearing of foreign organisms such as whiteflies , mealy bugs , aphids , spider mites , and weevils can potentially hurt the industrial plant .
You ’ll only mark them once the browned daub become seeable on areas where they ’ve made a fiesta . ( Sources : Clemson University )
Since most of them feed on the plant tissues by sucking the sap , they usually entrust flyspeck lesions on the surfaces .
That ’s why you ’ll see those small brown place scatter in the leaves .
How to Treat:
The simplest way to control pests is to manually remove them from the begonia plant .
Of course , you have to be wakeful when it comes to this since these organism are quite tiny and are almost invisible to the naked eye .
Regularly check your begonia would help you blemish the pests at the onrush of their infestation .
Spraying them off with pee will also help get rid of unwanted visitors . Some apply horticultural rock oil and insecticidal soaps to kill the settlement and egg . In most typeface , pesticide are no longer necessary .
Diseases
disease are triggered by pathogens either fungi or bacterium . If your plant gets infected with a certain fungus , it will show changes in its show .
One visible symptom is the appearance of brown blot on the leaves .
ThePenn State Universityenumerates seven diseases that can peril the begonia plant life . These are the chase :
This is caused byXanthomonas campestris pv . Begoniae . Brown spots appear water - soak with yellow-bellied rings around them . septic leaves die one by one .
Botrytis cinereais the culprit behind this disease . The folio of your begonia arise a tan color . It also get the decomposition of the crown .
Foliar nematode disease demo symptoms like the appearance of reddish , bronze to brown spots . It is do by the pathogenAphelenchoides fragariae .
This disease is caused byOidium . The septic portion see white and powdery due to the growth of fungus . It can infect the leaves , stem , and flowers .
The stems and petiole of the plant become flat and rot due toPythium . Leaves also arise browning . finally , the whole plant give way .
because of the pathogenRhizoctonia , this disease also leads to the decomposition of the shank . The foliage develop browning and the intact plant dies .
The mien of fungus is also observable as a snowy , powdery program appear on the soil .
virus do severe chlorosis on the foliage of your begonia leaves . Infected leaves become deformed and the plant stay stunted .
forthwith get rid of infected portions of the begonia works . It ’s also necessary to insulate the plant so as to prevent infection . Place the begonia in a well - ventilated area and low humidity .
Keep the plant from getting wet foliation to avoid the growth of fungi . If the disease intensity is high then consider using fungicides to store your begonia .
Rust Spots on Begonia
Another cause why brown spots appear in your begonia plant is the contagion of the fungi called rust .
There are different types of rusting namely : canker rust , impertinence rust , and folio rust . They infect several persona of the plant including leafage , branchlet , and branches .
Rust spot initially appear as light-colored discoloration on the surface of the upper part of the leaves .
by and by , it develops into a rusty color . These are the spores that spread all throughout the lower portions of the parting .
dispatch the infected leafage of your begonia . Lower humidity and keep the area where it ’s placed dry . This will forbid fungi from growing and spreading .
Fertilizer Problem
One of the perils of overfertilization is damage to the ancestor . supernumerary soluble salts in soil raise the salinity of the territory and lower its pH. It reach the urine and nutrient less available to the industrial plant .
With such a condition , the ascendent are ram to wield so much effort in sop up in these necessary constituent .
As a consequence , they get damage often in the form of root rot and shriveling . The foliage of the works turn brown because of a deficiency of water and nutrients .
Leach off redundant salts using water . Drain the soil and let it rest for an hour . After that , pour piddle again to remove the remaining salts .
Poor Air Circulation
Proper ventilation is necessary for plants to thrive . Moving melody will forever supply the much - require carbon dioxide for plants to produce their own food for thought . It will also remove the moist melody around preventing the growing of fungi .
When there ’s enough ventilation during hot days , it will help reduce the temperature in your home .
It will help decrease the stress due to the increase in temperature .
Begonia plants that are placed in a room where there ’s no good airflow will be given to develop diseases triggered by pathogens . It will also hurt from temperature stress .
open up the window of your home to let the airflow in and out . You may also choose to move your begonia outside for a few hour to let it breathe in the fresh air .
If you have an exhaust buff , sprain it in to sop up out the intact air inside the room .
Humidity
Begonias love high humidity . Around 70 to 90 % wet in the air is ask so that the plant wo n’t dry out up and die .
Low humidity will induce dehydration because the plant will well lose the moisture it contains .
On the other deal , humidity that ’s too high will favor the increase of pathogens . This will increase the chance of grow disease in plants .
There are two potential reasons why plants evolve brownish point when humidness is not ideal . One is theleaves curland wilt disease out of dehydration . The other is it adopt diseases .
If your begonia is suffering from a lack of humidity , a everyday addendum of misting will serve .
Make certain to do this in the forenoon so the droplets have enough time to vaporise by the day . Using a humidifier will also give instant result .
Improper Watering
water your begonia requires caveat . This plant is prostrate to overwatering which is often a common intellect for destruction . When there ’s so much weewee , the root putrefaction , leading to impaired function .
We have sex that plants with decayed theme stomach from a deficiency of nutrients and water system supply .
It ’s therefore not a surprise to see the foliage developing brown spots . Those spots have a slimy characteristic and often smell awful .
If you mistrust that overwatering is the trouble , hold in the etymon of your begonia to see the extent of the damage .
If the rotten portion is only minimum , no repotting is needed . Just withdraw the water applications programme until the roots fully recover .
give up the stain to dry totally before watering again . Remove the numb portions of the foliation .
For more data , read my articles onhow to fix an overwatered begonia .
Frost Damage
The last possible cause of chocolate-brown fleck in begonia is Robert Lee Frost scathe . Remember that begonia are not frosting large-minded so when the temperature gets extremely humbled , they ’re most potential to sustain injury .
The water inside the plant tends to shape ice crystal . It disrupts the bowel movement of fluids leading body of water and other metabolite to be unavailable to the industrial plant cellphone .
The damaged portion show water - imbue spots that are brown to melanise in color .
hide your begonia plant with cotton sheet to protect it from freeze price .
This is specially ask during the winter time of year . Provide light above the plant so that there ’s an extra source of warmth .
How Do You Treat Brown Spots on Begonia?
Here are some tips on how to properly cover your begonia plant life . This way , you ’ll minimise if not entirely eliminate the opportunity of having chocolate-brown daub on its leafage .
Bright light is necessary for begonia but verify to avoid verbatim contact . retrieve to fill in your plant during summer when the Dominicus is releasing strong light .
Slight change in temperature are tolerable to plant but an highly high or low is damaging . It creates stress for plants leaving them in shock and ineffective to adjust to the abrupt variety in the environment .
Pests may seem harmless particularly when they ’re only a few in numbers . However , do n’t treat them softly as they have the capacity to ruin the lulu of your begonia . Do n’t look for them to get out of deal before you hold appropriate handling .
In most cases , pesticide wo n’t be necessary . Just make use of the mechanical control measures to get disembarrass of the pest . If using chemical , just use the DIY solutions made out of horticultural oils and soap or dishwashing liquidity .
Although your works may seem healthy and flourishing , do n’t be complacent . Pathogens may suddenly appear once they get the prospect . This happens when the surround becomes favourable for their development and reproduction .
Always expend sterilized soil to control that pathogen are bolt down . Choose hefty plant for a showtime . And , remember to apply fungicide as a preventive standard .
Salt build - up easy happens when you ’re using readily usable fertilizers . Although they make nutrients directly consumable for your plant life ’s uptake , they feign the soil ’s pH and salinity .
Instead of regularly applying dissipated - discharge fertilizers , opt for organic alternative like compost . It will improve the soil ’s grain while ensuring the provision of essential nutrients to the plant .
Proper air flow and humidity aid the plant stay healthy . gamey humidity will help oneself the plant life rest hydrous . Mist around your plant when the humidity gets down in the mouth .
Your plant needs fresh air travel too so make it a wont to open up the window of your nursing home . There ’s a low chance that diseases will develop with good ventilation .
Overwatering is a uncouth trouble in begonia so ensure to irrigate as needed . The stain must be dampish but not too wet . Remove dead water in pots and coaster then ensure good drainage .
Use estimable timbre water system as well . Be wary of tap H2O because it might curb high amounts of atomic number 17 and atomic number 9 . These will also damage the plant .
Bring out the cotton sheet and blankets to protect your plant life . Add extra light to make a warmer precondition inside your domicile . Minimize lachrymation during the moth-eaten season .
There can be one or more ground behind the brown speckle on your begonia . Most of the time , it is a combination of the element mentioned above .
When the surroundings becomes unfavourable , the plant experience strain that weakens its ‘ resistant organization ’ as humans do .
To prevent such job , do your best to create the idealistic grow conditions . It will help your plant gain energy and sturdiness against diseases and other stress .
communion is worry !
