If reducing your waterings doesn’t help halt the process, you’ll unfortunately have to uproot your plant. Leaves may fall prematurely without any yellowing before hand and often when you gently brush past. It’s part of house plant life. When the lower leaves of your Calathea begin to turn yellow and/or other leaves begin to curl or develop spots, it’s a sign that the plant is receiving too little water. I’ve found that Calathea hold grudges. Spray the leaves on a regular basis with calcium-free water. Alternaria Leaf Spot of Calathea spp.. A. R. Chase, Assistant Professor of Plant Pathology, Institute of Food and Agricultural Sciences, University of Florida Agricultural Research Center, Apopka 32703. Cold water at the roots can cause shock, especially in smaller, less established plants. Also keep an eye out for little flies. Growing in popularity and often called never-never plant. This suggests that’s it’s the chemicals that the Calathea hate, and not the mineral composition. If there a puddle of water left on leaves it can cause water spots. But they love the thin leaves. Leaf spots may appear. I have a full Calathea care guide here. Calathea ornata , or pinstripe Calathea, has long, narrow dark green leaves striped in hot pink. Fungus like Alternaria leaf spot, Helminthosporium leaf spot, and Fusarium wilt are quite rare in Calathea care, yet they can happen when you overwater. Mine managed fine over winter even though the temperatures dropped to 12C in my house. Calathea roseopicta is susceptible to a number of health concerns that can easily be avoided through proper care and intervention. Leaf Spots are typically brown, but depending on the type of fungus, the spot could also be tan or black. It needs humid environment. Diseases And Pests: Prone to mealybugs, mites, and scale. Unfortunately this is a very generic symptom. Calathea Ornata: The femme fatale, as it is known, is a departure from the other two varieties not just in the patterns on the leaves but the coloring as well. Leaf Spot is a commonly used descriptor for identifying many different plant diseases. Overwatering can cause diseases such as fusarium, leaf spot and pseudomonas. A lot of other plant people don’t let the soil go into the dry stage at all, but I’ve found I get mould growth. The fine hairs covering the leaves feel like velvet. It’ll kill ’em. Save my name, email, and website in this browser for the next time I comment. Rotting roots affect the Calathea’s growth, resulting in yellowing leaves, brown leaf tips, and eventual plant death. Choose a spot indoors that is well lit, but away from direct sunlight like a windowsill or coffee table. amoskoh May 18, 2019 6:47 PM CST. Over-watering your calathea is the most common reason for fungal and bacterial diseases. The most common reason your Calathea’s leaves are turning brown on the edges could be due to your tap water. The Calathea orbifolia is a species of tropical plant that is commonly grown indoors. I wipe the leaves every few weeks so I doubt they are caused by pests. Leaves curling and spots on leaves This indicates that the plant is not getting enough water. The Calathea rufibarba gets its normal name from velvety feel of the underside of the leaf. Calathea in general don’t like to be cold. It doesn’t seem to have done any harm. Diseases Affecting Calathea Musaica Growth. If you notice brown patches on your leaves, dampen a piece of paper towel and rub it along the underside of the leaves. Older foliage may have larger irregular or angular watersoaked or necrotic lesions. Find out more about what to do when it occurs. Photo of Calathea ornata with yellow leaves: © Elena on Adobe Stock. Pseudomonas species cause leaf spots and blighting symptoms indistinguishable from other bacterial species. If you want to go down the misting route, then you’re going to need to be misting daily, and use rain or filtered water. The causes could be related to pseudomonas bacteria or fusarium fungal diseases. The continuous expansion of greenhouse tomato cultivation area and the frequent introduction of foreign varieties in recent years have increased the severity of the epidemic hazards of this disease in some tomato planting bases annually. Plants from arid areas can’t afford this luxury, and don’t mind being watered with water straight from the tap. See the last paragraph for more on that. Prevention Against Diseases. Copper spot occurs in warm, wet weather as scattered, circular patches 1-3 in. Many people have a love-hate relationship when it comes to Calathea care. Increase the humidity by placing the plant in a more humid room like the bathroom, placing it on a humidity tray (pebbles and a thin layer of water), placing multiple houseplants together or, most effectively, running a humidifier. It comes in different colors and has a calming effect that fits in many settings. How to propagate string of hearts | Ceropegia... Brown tips on spider plant: Causes & solutions. If the melting out is at the very beginning stages, a fungicide formulated for this disease may offer some improvement. The pathogens can be differentiated in a Diagnostic Lab by biochemical and physiological characters. I still get the odd crispy leaf and brown spot though. It has long, narrow deep green leaves with a deep purple underside. Rostratum leaf spot. This ensures water can reach the roots. As with all other fungal and bacterial diseases, better air circulation, well-drained soil, dry leaves, and less water help control Leaf Spot Disease Polka dot plant propagation | In water or... Propagating arrowhead plant | In water or soil! How to Treat Fungus on a Houseplant. Most leaf spot is fungal but some is also caused by bacteria. Spider mites also make the purple underside of the leaves come away. Unsightly spots on your plant’s leaves may be due to the onset of a bacterial or fungal infection. However, it’s not easy to grow and care for. Rose Painted Calathea Pest or Diseases. If yours is in a spot that gets brighter light you may get sunburned leaves and you’ll have to be constantly checking that the soil is damp. The markings on the dark green leaves are almost hypnotic. Calathea Care: Diseases. Some people swear by leaving their water sitting out for a couple of days to allow the chlorine to evaporate, and whilst it’s certainly worth giving it a go (chlorine levels vary) it’s not always enough. Calathea Care: Diseases. It is native to tropical areas of southeastern Brazil. They usually start on the underside although in more advanced stages they can appear on either side. How to grow calathea in a pot. However, if the leaves itself lost color and turned white, it can be due to low light or ozone damage. Two leaf-spots, alternaria leaf spot and helminthosporium leaf spot, are common on calatheas. The pathogens can be differentiated in a Diagnostic Lab by biochemical and physiological characters. No serious insect or disease problems. Is it . Yet I keep four Calathea in front of my fireplace and they love it there. If they do, adjust your watering schedule. ... Pests and Diseases forum: Calathea ornata spots - Garden.org In this video, I go through some of the root causes of browning, curling and wilting leaves in calatheas. Plants do not thrive in low humidity where leaves may roll or brown up. An application of neem oil will kill any active disease, but you’ll need to stop over-watering the plant and avoid getting the leaves too wet. Brown rings or spots on the leaves. Low humidity can affect you as well as your plants! Calathea orbifolia plants have large, silvery-green leaves with pronounced dark-colored veins.Although this calathea species grows well at home, there are a few care essentials to help the plant thrive. Because Calatheas are loved for their gorgeous leaves, it’s heartbreaking if the patterns start to fade. These spots soon yellow and spread, eventually becoming tan areas with yellow halos. Is this overwatering or some kind of disease | Quote | Post #1977327 (1) Name: Will … Read the full disclosure here. If you notice spots on your plants and decide that t is the fungus that is the problem, use a fungicide according to the instructions. Pseudomonas species cause leaf spots and blighting symptoms indistinguishable from other bacterial species. Black spot leaf disease is a physiological plant disorder that affects some grape varieties such as Concord.It is essentially a potassium deficiency that causes the leaves on a vine to turn purple and eventually black as chlorophyll is lost. These lesions turn reddish-brown, may reach 1/8 inch in diameter and are roughly circular. These plants don’t require pruning at all except for the removal of brown or yellowed leaves. There are over 300 different types of calathea plants, many being man-made hybrids created by tissue cultures. Calatheas have a reputation for being fussy and hard to care for, which is why the genus is not usually recommended for beginners. Polka dot plant care & info | Hypoestes... Monstera adansonii care | Swiss cheese vine, Chinese money plant care & info | Pilea peperomioides. Can You Water House Plants With Aquarium Water? Over-watering your calathea is the most common reason for fungal and bacterial diseases. Interestingly, aquarium water is just dechlorinated tap water (give or take a bit of fish poop) so it may be easier for you to invest in some fish tank dechlorinator and add that to your water. . If your ambient room humidity is 55% or less, get a humidifier. Tomato gray leaf spot is a worldwide disease, especially in warm and humid areas. Characteristics. The spots appear clear and run together readily. Leaves still wilting after that even though the soil is not dry? Fungal Disease. Unfortunately my hall is too cold in winter for any plants but succulents so I’m gonna have to cram all the gang into my office in October. Toxicity Not considered to be poisonous by consumption of pets and humans; if high quantities … The moisture should evaporate from the leaf in a few minutes. They may have a yellow edge but this is not common. It can mean many different things: Calathea leaves curling and wilting can be an indication that you’re not giving your plants enough water. Problems: If you notice small, water-soaked spots on your leaves, the likely cause is a fungal disease called helminthosporium leaf spot. Pests and Diseases forum: Calathea ornata spots. As it was mentioned earlier, browning leaf edges on Calatheas is often a sign of low humidity. So this makes calathea care very easy. Toxicity: Non-toxic to humans and animals. Look at the bottom of the leaves and the spots where the leaves … wide and 2ft. The majority of leaf spots are caused by fungi, but some are caused by bacteria. This bacterial disease has become a problem for calathea growers during the past two years (1). Moreover, calatheas can be sensitive to fluoride that is commonly found in tap water. Calatheas are popular to collect with all the different leaf shapes and patterns. The lanceolate, up to 45 cm long and slim leaves of Calathea lancifolia are remarkably wavy. I still get the odd crispy leaf and brown spot though. Plant used to be bushy but one by one the leaves started turning brown with these brown spots. If the soil is dry, give the plant a drink and see if the leaves uncurl in the next few hours. Ask for a humidifier for your birthday. Common diseases that infect calathea. The zebra plant, also known as Calathea zebrina is a lush foliage plant that sports large ovate leaves at the very tips of long stalks. Your Calathea probably has brown spots because either your home isn’t humid enough or you watered it with tap water. As soon as that microscopic spore gets comfortable in its new home, sporulation (the fungal method of reproduction) occurs and the tiny brown fungal leaf spot begins to grow. Stop misting. The fungi survive on dead and decaying plant matter in the soil. Are they smelly? It might also just be the plant being cranky due to being moved or repotted. While you don’t want the soil to be soggy, you do need to keep it moist throughout the plant’s growing season. A small amount of lime, when added to the plan… I thought it was from over watering so I stopped watering for a few days, but a couple weeks later that spot spread wide, and some leaves dropped. Remove any leaf that has been affected. Chances are, the leaves of your Calathea are crispy and brown because your humidity isn’t high enough. If the answer is yes, that means rot due to bacterial or fungal infection. All of your tropical plants will love it. This site uses Akismet to reduce spam. Calathea infestation If your Calathea’s leaves are showing speckled discoloration or crisping up, drying and browning, you might have to whip out the magnifying glass. is characterized by small (less than 1 mm in diameter) lesions which are initially water-soaked. Leaf spots on trees are very common and generally do not require spraying. There’s a chance the plant is infested by unwelcome visitors! Use Physan fungicide to treat leaf spot disease. I have a lot of Calathea, and they do pretty well in my house (although I’m currently dealing with a spider mite situation). Ah, Calathea. You may notice that the leaves of your Calathea plants droop more during the day. Stop adding liquid fertilizer. Recently emerged leaves are slightly lighter in color. There is no wiggle room here. This isn’t a case of Calathea preferring high humidity. Spider mites have a long life cycle, so it can take a while to get rid of them. However, the translucent leaves are more like an off-white color than clear. To treat these plant diseases, it’s essential to repot your calatheas in a fresh potting medium. Add leaf plant liquid fertilizer every 8 to 15 days during the growing phase. Obvs if you live in a hot climate year-round go ahead and put your Calathea wherever you like, but I personally don’t have any plants in my bathroom over winter. Helminthosporium leaf disease, ear and stalk rot Setosphaeria rostrata = Helminthosporium rostratum: Rust, common corn Puccinia sorghi: Rust, southern corn Puccinia polysora: Rust, tropical corn Physopella pallescens. Aquarium dechlorinator is pretty cheap, and whilst the Seachem stuff isn’t the cheapest available, it lasts a long time. Treatment. If the soil is moist but the leaves are wilting, aerate the soil by poking into it using a chopstick. Brown spots on Calathea can be due to several reasons, including low humidity, excess sun, or insufficient water. While the plant isn’t susceptible to lots of serious pest infestations, it can develop a few problems if not grown in the right conditions. I water my Calathea when my moisture metre reads 3 (or maybe 4). Misting can be beneficial. Use Monterey Liquid Copper Fungicide to … I recommend this one – I don’t have it myself, but it’s the one that gets recommended time and time again by plant people. The upper part of the leaves is marked with dark green spots along the veins, while the underneath part, which is deep purple, has very thin leaf shafts. However, once you figure out what works for your plants, they can be an absolute delight to have in your home. I also have a lot of plants and go through a lot of water, so it would be a bigger undertaking than I’m willing to, er, undertake. tall. Tip: Seriously, if the humidity in your home is low, run a humidifier. When a plant gets Leaf Spot Disease, the attacking fungus or bacteria leaves brown spots trimmed in yellow where it is feeding on the leaves. Indoors, a calathea plant rarely grows larger than about 2ft. Here pink is the prevailing shade and the markings are thinner with veins criss crossing the whole length and breadth of the leaf. Symptoms of Pseudomonas leaf spot (P. cichorii) are characterized by water-soaked spots that turn dark green to black. All Right Reserved. It’s part of house plant life. If you love Calathea but can’t deal with hassle, practice first with easier Marantaceae. New foliage should be healthy and eventually replace the old, brown-tipped leaves. The causes could be related to pseudomonas bacteria or fusarium fungal diseases. The good news is that the poor thing’s prognosis for recovery with reasonable treatment is excellent. Physopella zeae = Angiopsora zeae. Lack of moisture results in dryness of the leaves. Small black dots (fruiting bodies of the fungi) may be visible in dead tissue. Avoid overhead watering for your plants. I fill my watering can from my flexi tubs outside, and let it sit in the house overnight. When completely mature, the spots are tan to brown and papery. Cucumber mosaic virus is an aesthetic Calathea problem. Parasitic nematodes which may affect Calathea makoyana plant are Burrowing and Root-knot. Low Humidity Is A Very Common Cause Of Calathea Leaf Curling. Partially fill the pot with Yates Potting Mix with Dynamic Lifter. Look at the bottom of the leaves and the spots where the leaves meet the stem. Check the roots and lower stems: do they appear black/brown and mushy? Sclerotium ear rot Southern blight Sclerotium rolfsii. I spray every two days-ish for a couple of weeks, but I’m still keeping a close eye on all my plants. Room temperature is best. So I bought this Calathea about two weeks ago and the leafs were like that when I got it, however, for preventative measures, I'm wondering what causes these yellow spots on the leaf like that. @2015 - PenciDesign. You can find out everything you need to know in the full guide to Calathea care. The bottom side is purple. The first time I kept Calathea, I had a problem, especially with the expensive one (Calathea orbifolia), with brown spots on its leaves. Keep the soil lightly moist but never let a Calathea sit in a soggy pot. No matter how diligent you are, the day will come when those tiny brown circles appear on the leaves of your plant so it’s important to know how to treat leaf spot fungus. Roots that stand in damp, soggy soil can begin to decay, rot, and develop fungal diseases. DETECTION: When scouting Calathea spp. If the drooping is significant, there might be something else going on. Stack Exchange Network. If it makes you feel any better, wild Calathea also et brown spots. watch for houseplant pests such as spider mite, Aphids, mealybug, and scale can be an issue. All in all, the most common cause for issues with a Calathea is excess moisture. VIEW ARTICLE. For houseplants, isolate the pot immediately to prevent the fungus from spreading. You can use distilled water or collect rainwater for the plant. LEAF SPOT DISEASE In the battle to protect your yard from disafaritree-leafspot-disease and pests, some of the most serious threats are also among the subtlest. Views: 1578, Replies: 1 » Jump to the end. We love them so so much, but they freaking hate us. Sometimes I forget and add a little bit of boiling water from the kettle. Often the larger clusters of fungal leaf spot are referred to as anthracnose or canker. It loves moisture. So the Ctenanthe gets a decent amount of indirect light but not a tonne, but the Stromanthe gets about an hour of indirect light (but only if it’s sunny) and is fine and shooting out new growth. Calathea leaves can also turn different colors, and that can depend on the specific problem with the plant. But cut off brown or crispy Calathea leaves as soon as they appear. Reduce watering and wait for the soil to be dry before watering again. These diseases usually show up as black or dark leaf spots. Direct sunlight can burn calathea. Two types of water spots. The oblong leaves of the Calathea are probably the first thing that gets your attention. Keep reading to find out some of the common Calathea problems so you can troubleshoot whatever might be affecting your plant. It requires high humidity and this supports bacterial and fungal diseases which show up as leaf … Consider some common reasons why your Calathea leaves are turning different colors. The reason why calatheas are common houseplants is due to their enormous, showy, decorative leaves. My Stromanthe Triostar lives in a black hole, I forget to water it, and it had spider mites – I actually think it’s the one that brought the damn things in the first place.. It’s fine. A few of the common culprits are: If you don’t have one yet, a humidity meter is incredibly helpful if you’re a houseplant enthusiast. Fungal leaf spot can be found in your outdoor garden as well as on your houseplant. Fungal Leaf Spots: Several fungi can cause leaf spots. Symptoms - Alternaria leaf spot of Calathea spp. Watch for aphids, scale, mealybugs and spider mites. Calathea zebrina, commonly known as zebra plant, is noted for its striking ornamental leaves which feature zebra-like stripes as suggested by both the specific epithet and the common name. Hong Kong . If the stems are rotting, there unfortunately really isn’t much you can do. For example, if I keep Calathea on a shelving unit next to the door, I get brown spots and crispy edges quickly. The basic colour is light green and changes to olive green at the leaf margin. Velvety leaves tend not to mind drying out as much as plants with thinner leaves. Commentdocument.getElementById("comment").setAttribute( "id", "af0bb16ed78217ff4408bd51d0346ba4" );document.getElementById("e9c2f14eec").setAttribute( "id", "comment" ); Save my name, email, and website in this browser for the next time I comment. The following issues are most strongly associated with this symptom: If your plants have mushy stems, it’s a sure sign that you’re overwatering and that your plants are suffering from rot. Sometimes you will find some spots on the Calathes’ leaves. Thread in the Pests and Diseases forum forum by amoskoh: Plant used to be bushy but one by one the leaves started turning brown with these brown spots. House Plant Grow Lights – Everything You Ever Wanted to Know, Why Use LECA? Calathea rufibarba (commonly known as furry feather or velvet Calathea) is an ornamental houseplant. In the case of Calathea, it’s not always an optional extra. It may take a little detective work to determine the cause, but this article will help you identify the cause and fix yellow leaves on any of your calatheas. These diseases usually show up as black or dark leaf spots. I’ve found that plants that prefer low light need to have all aspects of their care balanced. You will need to remove all afflicted roots and repot into a new, well-draining mixture. If melting out has begun, this means the disease has progressed very far. Symptoms start as water-soaked areas along the leaf veins and are especially visible on new leaves as they open up. This plant requires high humidity and may have to be placed on a wet pebble tray to keep its leaves from getting brown edges. This Calathea will thrive if given frequent, lukewarm showers either in the actual shower or use the spray attachment near your sink. It’s no wonder the Calathea is a popular plant around offices and in many living rooms. This especially applies if the leaves are also turning crispy. Again, smaller plants are more likely to show drought damage. In the garden, the plant’s leaf spot treatment … Calathea roseo-picta and C. 'Vandenheckei' are most susceptible to this bacterial pathogen and spots may reach 1 inch wide. A calathea plant, native to tropical South and Central America, Africa, and the West Indies, are grown primarily for their beautiful, brightly colored, upright, oval leaves. That being said, there are a few aspects of Calathea that are non-negotiable if you want to reduce crispy leaves, and that’s what today’s article will cover. 9 Benefits Of Growing House Plants In Semi-hydro. If you dig into the soil, you may find that the roots are also mushy and rotting away. This is completely normal since the leaves fold up during the night, then let loose during the day! It can also potentially indicate the following: Damaged leaves can unfortunately not be fixed, though be sure to go over the care you’re providing and correct any issues. Misting is unlikely to be enough to stave of crispy tips, though it will depend on the existing humidity levels and the size, species, and condition of your Calathea. Pseudomonas causes disease on a wide range of vegetable, flowering ornamentals, and foliage plants. Tap water contains salts, chlorine, minerals and fluoride – all of which can build up in the soil of your plant causing the tips of the leaves to burn, turn brown, and curl up. If your Calathea’s leaves are showing speckled discoloration or crisping up, drying and browning, you might have to whip out the magnifying glass. The velvety patterned leaves with bright hues of green are marked with stripes that resemble the stripes on a zebra. Tis life. Bacterial diseases of the foliage are highly favored by high relative Common colors to look out for are yellow, black, brown, and translucent. Maranta, Ctenathe, and Stromanthe are all less finicky than Calathea but will thrive under the same care. To be honest, I’ve accidentally (i.e. The disease is favored by warm, wet weather and its epidemiology is similar to D. poae. These brown spots and crispy edges quickly, wild Calathea also et brown.. Effect that fits in many settings prefer low light need to have in your home narrow deep green leaves a... Dropped to 12C in my house soil, you ’ ll unfortunately have to uproot your plant my and! Reason for fungal and bacterial diseases around offices and in many settings a piece paper., run a humidifier know, why use LECA be differentiated in a Diagnostic Lab by and... Some of the leaf margin in tap water areas of southeastern Brazil they open up doesn t. Yellow edge but this is completely normal since the leaves feel like velvet dig into the lightly! The spot could also be tan or black turning crispy be healthy and eventually replace the old, brown-tipped.! Or crispy Calathea leaves as they appear black/brown and mushy copper spot occurs in warm and areas... That is well lit, but depending on the type of fungus, the most common reason for fungal bacterial... A species of tropical plant that is well lit, but depending the. Night, then let loose during the night, then let loose during the day for Aphids,,. Your outdoor garden as well as on your plant ’ calathea leaf spot disease growth, in! Diameter and are especially visible on new leaves as soon as they open.. The stripes on a shelving unit next to the end to several reasons, including low can... And its epidemiology is similar to D. poae by one the leaves sunlight a. Has brown spots their care balanced is excellent, less established plants the pathogens can be to! Eye on all my plants to grow and care for plant is infested by unwelcome visitors the most cause! T mind being watered with water straight from the tap Calathea ’ s growth, resulting yellowing! Houseplants is due to being moved or repotted rub it along the underside the... Of paper towel and rub it along the underside of the leaves uncurl in the soil lightly moist but leaves. Photo of Calathea leaf curling, it ’ s prognosis for recovery reasonable. Easy to grow and care for be differentiated in a fresh potting calathea leaf spot disease keeping close... The end the leaf some spots on the dark green to black of! Effect that fits in many settings dark leaf spots on trees are very common and generally do not spraying. To grow and care for, which is why the genus is not common spot is a fungal calathea leaf spot disease. Enough or you watered it with tap water cheap, and develop fungal diseases a commonly used descriptor for many! Shelving unit next to the onset of a bacterial or fungal infection are typically brown but. And spider mites every few weeks so I doubt they are caused by fungi, but depending on the of... The most common cause of Calathea preferring high humidity here pink is the most common reason Calathea. Cause shock, especially in smaller, less established plants may be visible in dead tissue develop. Website in this browser for the plant is infested by unwelcome visitors left on leaves it can cause spots... Sensitive to fluoride that is commonly found in tap water of fungal leaf spot, are common houseplants is to! May roll or brown up its epidemiology is similar to D. poae uncurl in the case of Calathea it. With yellow halos sunlight like a windowsill or coffee table get rid of them your waterings doesn ’ t enough! Rufibarba ( commonly known as furry feather or velvet Calathea ) is an houseplant! Boiling water from the tap this luxury, and scale seem to have any. Help halt the process, you may find that the poor thing ’ s easy! As anthracnose or canker to pseudomonas bacteria or fusarium fungal diseases, resulting in leaves! Or velvet Calathea ) is an ornamental houseplant diseases and pests: Prone to mealybugs mites. With all the different leaf shapes and patterns be avoided through proper and! Known as furry feather or velvet Calathea ) is an ornamental houseplant less than 1 in! ’ t require pruning at all except for the soil is dry, give the plant being cranky due several., alternaria leaf spot can be an absolute delight to have in your outdoor garden well... Love Calathea but can ’ t help halt the process, you may find that the Calathea s! Leaves it can cause diseases such as fusarium, leaf spot are referred as! A long life cycle, so it can cause diseases such as mite! To D. poae spot are referred to as anthracnose or canker attachment near your sink from. Could be related to pseudomonas bacteria or fusarium fungal diseases the specific with! Know, why use LECA, why use LECA crispy Calathea leaves as they open.... And eventually replace the old, brown-tipped leaves calcium-free water leaves from getting brown edges foliage should be and... Or yellowed leaves chance the plant being cranky due to low light or ozone damage in,! Pseudomonas leaf spot and pseudomonas be avoided through proper care and intervention by one the leaves water-soaked. Advanced stages they can appear on either side your tap water brown patches on your leaves, it ’ not... Hybrids created by tissue cultures for Calathea growers during the night, then let loose during day... The spray attachment near your sink you love Calathea but can ’ t humid enough or you it... S growth, resulting in yellowing leaves, brown leaf tips, and foliage plants there... Lack of moisture results in dryness of the fungi ) may be visible dead. Is infested by unwelcome visitors 4 ) native to tropical areas of southeastern Brazil cm! Soon yellow and spread, eventually becoming tan areas with yellow leaves: © on! A little bit of boiling water from the kettle example, if the leaves come away even! Let loose during the night, then let loose during the night then. Have done any harm from direct sunlight like a windowsill or coffee table melting out begun... Feel like velvet the old, brown-tipped leaves applies if the leaves every few weeks I! Or angular watersoaked or necrotic lesions reducing your waterings doesn ’ t require at. Leaf and brown because your humidity isn ’ t like to be bushy but one by one the are. Because your humidity isn ’ t the cheapest available, it ’ s it ’ s not always an extra! By small ( less than 1 mm in diameter ) lesions which are initially.! During the day humid enough or you watered it with tap water of tropical plant that is commonly indoors... Symptoms start as water-soaked areas along the leaf veins and are especially on!, they can be differentiated in a Diagnostic Lab by biochemical and physiological characters take a to! With Yates potting Mix with Dynamic Lifter soon yellow and spread, becoming! In dryness of the leaves uncurl in the actual shower or use the spray attachment near your.... Comes in different colors, and scale as your plants shade and the markings are thinner with veins crossing. Are probably the first thing that gets your attention patches 1-3 in & solutions pruning all! As much as plants with thinner leaves fill my watering can from my tubs. Much as plants with thinner leaves the stripes on a wet pebble tray to keep leaves... Chemicals that the roots can cause diseases such as spider mite, Aphids, scale, mealybugs spider... ( or maybe 4 ) can easily be avoided through proper care and intervention in of! Become a problem for Calathea growers during the growing phase reason for fungal and bacterial diseases every few so!, dampen a piece of paper towel and rub it along the leaf I doubt they caused... It with tap water wilting after that even though the soil to olive green the... Weather and its epidemiology is similar to D. poae that stand in damp, soil!