Only when the soil is dry down to the first inch or so (a couple centimeters), water to moisten the entire soil mix again. If possible, identify the infestation as early as possible and treat with the least toxic option. ).Photo credit: X. Huang. More or less every two weeks, you can offer it some liquid fertilizer, taking great care to moisten the soil mix beforehand. The primary hosts in Florida are Phoenix species, especially Phoenix canariensis (Canary Island date palm) and Phoenix dactylifera (date palm). Is there something I should do to correct this problem? From The Garden Forum: Hello,I recently bought an areca palm. It might be thrips, but only a picture will help us know for sure. You can even use a macramé necklace or strand of wicker! Summary of Poinsettia facts…, Aeschynanthus gilds our homes thanks to its magnificent blooming from May to September. They shouldn't last long and won't affect the plant. Although the disease is predominant on the nuts, it occasionally attacks the crown of the palm resulting in rotting and drying. Today, i noticed small black spots on five of the main shoots. The source of primary inoculum, are the sporangia produced by the perennating pathogen structures, the chlamydospores formed in the infected fallen nuts, and, probably, the zoospores produced by the perennating oospores. Poor air circulation will also cause the problem. I’m concerned they may be diseased. This recreates its natural environment living conditions which are rather moist. Finally, this season is also the one to stop adding fertilizer, from October all the way to March and April. The antheridia are diclinous and amphigynous. Trees, even evergreen trees, lose their leaves to renew them. Avoid using perlite and super-phosphate. The areca fruits surfaces get rotten as a result of the disease. Do I have to throw it out and buy a new one? The disease is often referred to as “false smut.” 2. Leaf spot diseases may occur at any stage of palm growth, but are a more serious problem of seedling and juvenile palms because they have fewer number of leaves or the leaves are smaller in size than in a mature palm. Again, one might contend that watering 2 or 3 times a month should largely suffice. Leaf spot diseases of palm trees are caused by different fungi types, most of which only affect the leaf blades. Scale is actually a tiny white pest that can destroy a sago palm very quickly. Best to place it near a window facing to the West so that it would still have a good deal of light. Cleanliness and sanitary cultural practices, particularly the destruction of diseased tops of the palms and other plant parts, are of foremost importance in disease management. When indoors, they aren’t hardened by outdoor gusts of wind. Sclerotinia blight of Areca palms is most severe on plants less than 2 ft. tall, since they are densely planted (up to 100 seeds in an 8 in pot) creating ideal conditions for infection and disease development. This will help ensure that roots won’t wallow in water, which could be fatal to it. However, close planting of palms provides ideal conditions for disease spread. These tiny insect pests attach themselves to the leaves and stems of palms and other plants, sucking the sap and damaging or killing the plant. Start reducing the watering because areca water needs begin to decrease. The symptoms are similar in the Mexican fan palm and a dark brown stripe will be visible on the stem of the leaf. You need to make sure water drains very well. It’s called pink rot because spores have a salmon-pink color. This is normal and is nothing to worry about. As with other root rot sicknesses, the best treatment is to let the plant dry out more often. Name – Dypsis lutescens Former name – Chrysalidocarpus lutescens Family – Arecaceae (also called Palmaceae) Type – palm tree, indoor plant Height – 5 to 8 feet (1.5 to 2.5 m) indoors It sounds like something is wrong, yes. If no new shoots appear, however, and that your palm tree looks pitiful, check on your watering. Each sporangium gives rise to zoospores after a few hours of their formation. Leaf spot diseases are characterized by dark lesions on palms. Continuous rain with good light disfavour disease spread because the plenty of sporangia and, in turn, the zoospores produced in these conditions are washed off by the continuous rain. DISEASE NAME: Leaf spot and blight of coconut, Cocos nucifera. The plant in the first picture is an Areca palm, also known as "dypsis lutescens" and the spots on the stalk are not harmful to the plant, and very common. When released, they cover the base of plant in a layer of pink dust. Ensure excellent water drainage, and eventually support the plant with liquid fertilizer every fortnight. Pink rot is a deadly fungus that attacks trees that another fungi has weakened. Disease incidence is highest during March and April in south Florida. Good light appears to be essential for the formation of sporangia and for the emergence’ of zoospores, which are liberated when there is abundant moisture in the atmosphere. Initial symptoms appeared as 2-4 mm oblong, dark red lesions … Scientific name of Betel is Areca catechu. Hi Saba, perhaps its an insect since it’s only a spot. It’s a cousin to the larger Areca palm that produces betel nut spice, the Betel nut palm. Key Areca facts, a summary. The good news is that identifying the cause is quite simple, allowing you to fix the problem and prevent your Areca Palm getting brown tips in the future. If it happens on more than one leaf at the same time, maybe it’s the beginning of overwatering. In most cases, leaf spots will not kill the palm tree, and fungicides are usually not necessary. The first appearance of the koleroga is on the nuts two or three weeks after rains begin. The symptoms are similar in the Mexican fan palm and a dark brown stripe will be visible on the stem of the leaf. Required fields are marked *. Exposure – Very well-lit. In order to enhance drainage, pour clay pebbles or small stones into the pot to form a layer at the bottom. If prolonged favourable conditions prevail as well as there is not timely spraying of fungicides, the damage is heavy resulting in almost the total loss (up to 90%) of the crop. According to the University of Florida, all palm tree species are susceptible to leaf spot, including golden cane palms. Root rot is easily avoided by watering only when the soil is partly dry. It is believed that where many crops are grown simultaneously in the same orchard (as found in Karnataka where arecanut, cocoa, cardamom, black pepper, and citrus are grown simultaneously in the same plantation), and they are infected by two to three species of the some pathogen (e.g., P. arecae, P. meadii, and P. palmivora), there is possibility of mating between different strains and species resulting in copious production of oospores for survival of the pathogen and for emergence of new and more virulent races. This is a list of diseases of foliage plants belonging to the family ... parlor palm, Florida hybrid palm Ca Chrysalidocarpus lutescens: Areca palm H Howea forsterana: Kentia palm R Rhapis excelsa: lady finger palm Bacterial diseases ... = Cercospora rhapidicola. The disease spreads from palm to palm and from orchard to orchard. The specific care that’s needed for an areca, how and when it should be repotted, watered and what diseases infect it. Do not irrigate with water containing 1 ppm fluoride. I bought araca plam and I saw yellow spot in the end of plant. Throwing it out may be the best option if you prefer not going through the hassle of trying to heal it! Generally speaking, areca doesn’t tolerate the cold and can only be planted outdoors in regions where the climate in winter is mild. It severely affects the fruits (nuts) of the areca palm during June to September when there is heavy rainfall (187-750 cm) in these areas. It grows best when surrounding temperatures hold around 65 to 72°F (18 to 22°C) and requires very good light, even some direct sunlight. The green colour of the nut-shell turns darker green and the early symptoms gradually spread ultimately covering the entire surface of the nut. On areca palms, small dead spots form in chains between leaf veins. 2-3 months old plants may be easily infected in comparison to older ones. Though the sexual reproduction is uncommon in nature, the formation of antheridia and oogonia producing oospores after fertilization has been found in cultures. Former name – Chrysalidocarpus lutescens Areca is a very elegant palm tree that adapts very well to indoor life in an apartment or house. The Areca Palm (Dypsis lutescens) is a wonderful choice of indoor palm tree, but it does tend to be prone to getting brown tips on the leaves. Symptoms of yellow leaf disease of Areca catechu caused by areca palm velarivirus 1 (H. X. Wang et al. Copper fungicides such as 0.25% Perenox or 1% Bordeaux mixture or Fytolon, has been found very effective. Some palm trees, such as Pygmy date palms, have waxy surfaces which appear as tiny white spots on the leaves. This is the most conspicuous and dangerous stage and is a sure sign of the disease in the plantation. The leaves and bunches wither away soon. Reduce the frequency of watering until the top inch of soil is dry. Date palms with leaf spot disease are often suffering from nutritional deficiencies at the same time that their fungal pathogens take hold. One spray of Bordeaux mixture in the month of May as prophylactic measure and another after 6 weeks during break in the monsoon prove quite effective in controlling disease. Watering must be regular but limited, in order to not suffocate the plant’s roots. Water soaked areas usually manifest towards the base of the nuts. This is a root crown disease called pink rot. These are the questions when one is lucky enough to own a magnificent areca. The disease will subsequently kill the leaf. Find a more exposed location for it and reduce watering to match our recommendations above. It is linked to high temperature and humidity. Covering the arecanut branches with polythene bags as a prophylactic measure provides cent percent control of the disease but it is costlier than fungicide spray. INSECT AND MITE PROBLEMS Save my name, email, and website in this browser for the next time I comment. Behind a window, though, best to avoid too much direct exposure to the sun which might dry the areca up. Both tend to create spotting, although nutrient deficiencies usually have the spots turn yellow before turning black. Cycad scale – This sago palm problem isn’t a disease, but the powdery white substance on the leaves may lead you to believe your palm has a fungal disease. Rather than fret over it, it is probably better to discard yellowing or declining areca palms and replace them. You might say that watering every 2 or 3 days is often needed. Adenium facts in a nutshell…, Poinsettia is one of the cutest indoor plants, often quite remarkable around New Year's and Christmas. This disease is most common in areas of high humidity. The new leaves that are blooming have a sticky, really shiny surface, looks like something shiny has been poured onto them. Adenium is a plant used indoors for its appealing blooming and its surprising ornamental qualities. Keep your palm out of direct sun that might cause scorched spots on leaves. Generalized weakening and slow growth often accompany scale feeding. Potassium deficiency: This nutrient deficiency causes leaf spots that can look identical to leaf spots caused by plant pathogens. The most common reason for palm diseases is over-watering. Set up your areca in a fair-sized pot filled with special indoor plant or green plant soil mix. Fungal fruiting bodies of Phyllachora maydis on corn foliage resemble spots of tar (J. Valle-Torres et al. If you live in a house that is quite dark, avoid purchasing areca because it won’t cope well with the lack of luminosity. To keep them from falling over, tie them loosely together with a cute ribbon. The Aliette (Fosetyl-Al) shows anti-sporulant activity resulting in reduced amount of secondary inoculum. 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