Bacterial leaf spot Begonia maculata

Riesenauswahl an Markenqualität. Begonias gibt es bei eBay Begonia Heute bestellen, versandkostenfrei

Bacterial leaf spot of begonia is caused by Xanthomonas axonopodis pv. begonia (formerly known as X. campestris pv. begonia) Symptoms include water-soaked foliar lesions and wilting. Foliar lesions are especially visible from the underside of the foliage. Severely affected leaves may fall off the plant Leaf spots of begonia are caused by a pathogen called Xanthomonas. Among the first signs and symptoms that growers may notice when dealing with leaf spot on begonia is the appearance of darkened spots or water soaked leaves

Begonias u.a. bei eBay - Tolle Angebote auf Begonia

Begonia Maculata commonly referred to as the Polka dot Begonia, is undoubtedly one of the most strikingly gorgeous species of indoor plants. This exotic plant derives its name from its unique silver spotted leaves and red undersides. The Begonia Maculata does well in a potting mix with good drainage using a soil mix with sand and clay Begonia maculata 'Wightii' is another houseplant that has taken the plant world by storm and is super popular. And for good reason! The foliage is absolutely stunning and is nicknamed the Polka Dot begonia for obvious reasons. Begonias can be a bit touchy though, so it is important to know a few things to keep your plant in tip top shape The stem is green to red, sparsely hairy when young. As for the leaf blades of Begonia cucullata, they are glossy green above, paler green beneath, sparsely hairy, ovate, or elliptic. The inflorescence is bisexual, white to rosy pink. Bonus care tip: Given plenty of light, this plant can grow as a bedding plant, indoors or in a greenhouse

Begonia - Begonia Restposte

  1. Begonia Maculata ordinarily alluded to as the Polka dab Begonia is without a doubt or any ambiguity perhaps the most strikingly ravishing and stunning types of indoor plants. With the Begonias signature topsy-turvy leaf and silver polka dabs on the leaf
  2. Bacterial Leaf Spot Bacterial leaf spot or blight of begonia is one of the most widespread begonia diseases and is caused by Xanthomonas campestris pv. begoniae. This disease first appears on the..
  3. Rust Spots on Begonia Another reason why brown spots appear in your begonia plant is the infection of the fungi called rust. There are different types of rust namely: canker rust, gall rust, and leaf rust. They infect several parts of the plant including leaves, twigs, and branches
  4. g white flowers

Bacterial Leaf Spot (Begonia) Problem Info . Small, blisterlike spots appear on the leaves. The spots are translucent and turn brown with yellowish, translucent margins. The spots enlarge and run together, giving the leaf a blotched appearance. Sometimes a slimy substance oozes from the infected areas, turning light brown as it dries Begonia Maculata, also known as Polka Dot Begonia, is a glamorous species of the Begoniaceae family. It has exquisite olive-green colored leaves that resemble bat's wings. These leaves are beautifully splotched by silver-white dots. The leaves have crimson-colored undersides Figu re 3. Upper surface of a begonia leaf showing mostly hydathode infections caused by the bacterial leaf spot organism (courtesy R.K. Jones). blotches with narrow, yellow, translucent margins or halos, which are visible on both leaf surfaces (Figures 1 and 2). Under moist conditions the lesions usually appear dark green and water-soaked Bacterial leaf spot on begonia is caused by a Xanthomonas that can only infect plants in the genus Begonia. There are many different types of begonias, most of which can be affected, there are however differences in susceptibility among them. There are few specific cultivars available that are reported to be resistant Symptoms of bacterial leaf spot may include black edged lesions, brown spots with yellow halos, or just light and dark areas on the foliage. Spots are irregular and measure between 3/16 and ½ inch (5 mm. to 1 cm.) wide. They can occur on the top or bottom of a leaf and kill sections of the tissue when they cluster together

Begonia maculata is also known by other names, Clown, Spotted, or Polka Dot begonia. This beautiful plant is trending now. The reason is it is easy to grow and care. Begonia maculata has olive color leaves with white dots, crimson-colored undersides, red and white flowers Begonia. Bacterial leaf-spot {Bacillus pyrocyanus [B. pyocyaneus] P. and D. Ç).— * * * This is probably the same disease that occurs in ^France, although it was not observed to attack the stems but only the leaves. * * * ^o cul- tural work with the organism was attempted. Begonia leaf specimens of the Heald and Wolf collection of 190 The Begonia Maculata is a photogenic houseplant that will give any home a pop of color. Commonly called the Polka Dot Begonia, this beauty is a bit challenging to grow - but boy oh boy, is it worth it. botrytis, stem rot, root rot, bacterial leaf spot, whiteflies, and mealybugs. Keep your leaves free from these issues by removing areas. Begonia Maculata is a fast-growing indoor plant that needs a lot of water. Hence, you need to keep the soil moist, often. Some of the fungal and bacterial diseases to look out for are pythium root rot, botrytis, leaf spot, and powdery mildew.. Begonia maculata or Polka Dot begonia as it's regularly known as is a splashy display-stopper that appears great with its olive inexperienced leaves and contrasting spots. It is a houseplant that is likely to show heads in your house, and fortuitously it is not too difficult to take care of

Begonias can be prone to diseases such as Pythium rot, Botrytis blight, and bacterial and fungal leaf spot diseases. Pythium and botrytis in particular can develop rapidly and cause your begonia to wilt dramatically within as little as 1-2 days Bacterial Leaf Spot. Begonias in the early stages of leaf-spot disease develop yellow-margined, water-soaked spots. These spots, resulting from an infection of Xanthomonas axonopodis pv. begonia. Begonia Diseases. Informational table showing disease name, symptoms, pathogen/cause, and management of begonia diseases. Water-soaked areas surrounded by yellow halos develop on leaves. Plants slowly die one leaf at a time. Purchase plants free of the disease. Discard infected plants; particularly Rieger-types which are systemically infected Begonias are susceptible to several other diseases that can manifest themselves by yellowing of leaves. These include bacterial leaf spot and blight, which cause watery spots surrounded by yellow halos on leaves.Removing infected leaves may cure a minor problem, but it's best to inspect plants carefully for signs of this problem before making a purchase

Figure 1. Pseudomonas leaf spot on mandevilla showing marginal necrosis. T he last time I reviewed bacterial disease control on ornamentals for GPN was in 2012, and a lot has happened in the ensuing years. There are new methods for identification, new diseases and several new effective bactericides, both conventional and biological in nature Caring for Begonia Maculata. Begonia Maculata, also known as the Polka Dot Begonia, is a plant that originated in Brazil. It is a gorgeous, tropical plant, and once you've gotten the hang of the moisture balance, it can be a fantastic conversation piece, and the Begonia Maculata has been growing in popularity as a houseplant as a result.. Begonia Maculata is a cane begonia

Bacterial leaf spot of begonia - MSU Extensio

Bacterial leaf spot of begonia: Xanthomonas axonopodis pv. begoniae (formerly X. campestris pv. begoniae) Bacterial leaf spot of poinsettia: Curtobacterium flaccumfaciens pv. poinsettiae ; Bacterial wilt of carnation: Burkholderia (=Pseudomonas) caryophylli; Black leaf spot of delphinium: Pseudomonas syringae pv. delphini Bacterial leaf spot on plants will discolor, and in extreme cases, kill leaves. Tiny, microscopic, single celled organisms are what causes bacterial leaf spot. There are several methods on how to treat bacterial leaf spot and save your plant's glorious leaves. Early identification is crucial to effective management of bacterial leaf spot disease Begonia 'Escargo' with bacterial leaf spot. OSU Plant Clinic Image, 2017. Cause Xanthomonas axonopodis pv. begoniae, a bacterium. Can survive in dead leaves at least 1 year and is favored by splashing water, overhead irrigation, and temperatures from 80°F to 90°F. The bacteria can enter injured roots or leaves and may not produce symptoms for. Nichols LP; Jodon MH; Scarborough B, 1974. Longevity of Xanthomonas begoniae, the cause of bacterial leaf spot of Rieger begonias. Pl. Dis. Reptr., 58:814. Ornek H; Aysan Y; Mirik M; Sahin F, 2007. First report of bacterial leaf spot caused by Xanthomonas axonopodis pv. begoniae, on begonia in Turkey Xanthomonas bacterial leaf spot on begonia. 3 of 3. Xanthomonas bacterial leaf spot on begonia. Replay gallery Share the Gallery. Up Next. Greenhouse Grower's GROW Initiative: How You Made a Difference in 2017. Cancel. Xanthomonas is a genus of bacteria that infect many varieties of plants, causing spots and blights on leaves and stems

Some of the more common bacterial leaf spots that occur on ornamentals include, but is not limited to, the following: Bacterial leaf spot of zinnia is caused by Xanthomonas campestris pv. zinniae. V-shaped lesions on geranium is caused by Xanthomonas axonopodis pv. begonia. Bacterial leaf blight on cockscomb is caused by a species of Pseudomonas Similar to most cane-stemmed Begonia, B. maculata is considered a rapid-growing species that can grow up to 30cm per season. Pruning & Maintenance. Remove yellow or dying leaves, and plant debris to encourage better-growing conditions. While pruning, always use clean utensils or shears to reduce the chance of bacterial and fungal diseases Bacterial Leaf Spot of Begonia Scattered leaf spots, wedge-shaped leaf spots, and wilt can be symptoms of bacterial leaf spot. by Nora Catlin nora.catlin@cornell.edu We've been seeing more begonias on greenhouse benches over the past few years. This is in part because growers and gardeners are seeking a shade annual substitution for garde Bacterial Leaf Spot is an important foliar disease of Begonia species. Infected plant material is the most likely source of contamination. X.c. begoniae can survive in dried leaves for up to one year and may survive on foliage for several months before initiating disease. Various species, cultivars, and hybrids of Begonia are susceptible to varying degrees Horticultural Group Cane-stem begonias are erect, evergreen perennials with fibrous roots and cane-like stems with asymmetrical, strongly toothed leaves, often strikingly marked, and showy flower clusters in spring or summer. Details B. maculata is a fibrous-rooted species with erect stems to 1m. Foliage is green with silvery-white spots above.

Begonias With Leaf Spot - Information On Begonia Bacterial

Begonias with leaf spot are often introducedinto the existing flower bed, thus causing problems in the garden. Treating Begonia Bacterial Leaf Spot. The best way to maintain a healthy planting of begonias isto monitor and check the overall health of the flowers before planting theminto the garden. Closely examine the leaves of the begonia plants The most common reason begonia leaves rot is too frequent watering. Begonias are succulent plants with stems that are mostly water, which makes them very sensitive to moisture and fungus. Overwatering begonias causes their leaves to turn yellow, a process called chlorosis. Eventually, those leaves rot and then fall off Begonia Maculata Begonia Maculata Indoor Care Tips. Begonia plants come in many varieties and hybrids, in different colors, sizes, and shapes. Without any doubt, the Begonia maculata is one of the prettiest Begonia plants I have ever seen.. The silvery-white polka dots look almost unreal as if they were painted onto the deep olive-green leaves Hi community: I have a very dear hairy begonia that has started having mysterious holes in the leaves over the last few months. I thought it might be burns from fertilizer pellets, but now I suspect a pest. On inspection, nothing is obvious. I had a minor fungus knat problem on a nearby plant, but I..

Xanthomonas bacterial leaf spot on begonia. Photo courtesy of grower. In a December 16 letter to its customers, Dümmen Orange said it had encountered an issue in its El Salvador-based Las Mercedes production facility, where Xanthomonas, or bacterial leaf spot, had been confirmed in begonia production Begonia maculata is a variety that cannot withstand direct sunlight exposure. Direct sunlight exposure will make your begonia maculata develop large brown patches on the leaves. The sun scorch can also cause a begonia leaf burn problem. Bacterial Leaf Spot of Begonia. The University of ILLINOIS bacterial leaf spot and stem rot Lady Washington and Martha Washington (P. domesticum), Madame Layal and Marie Vogel (P. x domesticum), Torento, Peppermint (P. tomentosum), Countess of Scarborough (P. scarboroviae) begonia (Begonia spp.) bacterial leaf spot and blight Rex and tuberous begonias are less severely infected than Rieger begonias Begonias are common in homes and outdoor gardens. There are more than 1000 species and various types and hybrids. Begonia comes in different shapes, sizes, and colors, which makes it easier for people to find the right begonia for their homes. Some people prefer crooked, patterned, and colorful foliage, while others love the fibrous type Begonia Maculata Care. Diseases and Pests: High humidity and overwatering can cause powdery mildew, botrytis, bacterial leaf spot, stem and root rot. Whitefly and mealybugs are sometimes a problem, but easily dealt with. Toxicity: Toxic to pets and people if ingested

how to care for begonia maculata ⋆ Leafy Lif

Iron cross begonia can be propagated by stem or leaf cuttings. Insects, Diseases, and Other Plant Problems: Keep foliage dry to help prevent the onset of powdery mildew. Susceptible to bacterial leaf spot, blight, and stem/crown rot. Watch for aphids, mealybugs, and spider mites Begonia Maculata reproduces: by dividing the Bush or leaf. In the first case, take a strengthened Bush with leaves 3-5 centimeters. In the second case, either part of the incised sheet, laying on the wet sand and pressing it. Alternatively, leaf with the stalk in water that covers the shoot at 1 centimeter, while water is continually changing

Alternaria and Bacterial Leaf Spot. Alternaria leaf spot is a series of brown or black lesions surrounded by pale yellow. Fungi germinate on leaves of mostly younger plants and seedlings while. The name rex begonia is applied to a group of cultivated begonia hybrids that have the wild Begonia rex species as one of the genetic parents. These tropical plants have been bred to have unusual markings, leaf shapes, and colors. Many are variegated in shades of green, red, pink, purple, silver, and brown Begonia Maculata Indoorplant Care. Scientific Name: Begonia maculata Light Requirements: Bright, indirect light. Higher light levels will promote strong growth and blooms, but avoid direct sunlight. High humidity and overwatering can cause powdery mildew, botrytis, bacterial leaf spot, stem and root rot. Whitefly and mealybugs are sometimes.

Begonia Maculata Care - How To Grow Polka Dot Begonia

bacteriophages of xanthomonas campestris pv. begoniae; their occurrence, survival and potential use as a biological control agent . by . jeffrey kaesber Begonia maculata in Plastic Pot (RARE) Botanical Names Begonia Malculata Common Names Polka Dot Begonia, Spotted Begonia How to Grow and Care Begonias can't be left in direct sunlight, but it should be placed in an area with bright indirect light. Light Requirements: Bright, indirect light. Higher light levels will promote strong growth and blooms, but avoid direct sunlight. Watering: Keep the. The begonia may be used as a houseplant or as a colorful addition to a shaded outdoor bed. Place the stalk into a glass of water in a sunny spot, or pop it directly into quality soil. In a few weeks, your begonia should take root. overwatering can lead to the potential for developing issues or bacterial leaf spot. Decreasing watering.

Begonia Maculata (Polka Dot Begonia): Step-By-Step Guide

Begonia Prismatocarpa Propagation. Just like other members of the genus, the Begonia prismatocarpa can be grown by seeds. However, you can propagate them easily by all under mentioned methods; Rhizomes division. Leaf-cuttings. Stem-cuttings. Propagation by Stem-Cuttings. This is the easiest method to propagate Beautiful Begonias The escargot begonia is a one of the most popular Rex Begonia hybrids. The reason for this is its stunning spiral-like pattern on its leaves that look like the tiny snails. As such, it gets its nickname. Unlike many begonias that people are familiar with, this one isn't known for its large, colorful showy flowers. How to Grow Escargot Begonia (Rex Begonia 'Escargot') Read More NEW DISEASE REPORT Blackwell Publishing Ltd Plant Pathology (2007) 56, 347 Doi: 10.1111/j.1365-3059.2007.01522.x First report of bacterial leaf spot caused by Xanthomonas axonopodis pv. begoniae, on begonia in Turkey H. Orneka, Y. Aysana*, M. Mirikb and F. Sahinc a Department of Plant Protection, Faculty of Agriculture, Cukurova University, TR-01330 Adana; bDepartment of Plant Protection. Begonia Begoni:! semperilorens Bougainvillea Bougainvillea spectabilis Cercospora Leaf Spot Anthrarnose Entomosporium maculata, Colletotrichum sp. Anthracnose Algal Leaf Spot, Alternaria Leaf Spot, Botrytis Leaf and Rot, Cel :ospora Leaf Spot Bacterial Leaf Spot. 5I-( ( ) , Oleander Oak, Laurel Pachysandra Pansy Pear (Flowering) Peony.

Begonia Maculata Care. Diseases and Pests: High humidity and overwatering can cause powdery mildew, botrytis, bacterial leaf spot, stem and root rot. Re-Potting: Annual repotting in spring will help greatly Rex Begonia's are also called looking glass plants. This plant is susceptible to fungal infections, mainly bacterial leaf spot. Rex begonia plants have calcium oxalate, which is toxic to dogs and cats. The rex begonia is a native of Southeast Asia. Rex Begonia Features: An Overview. Rex Begonia leaves also grow in purple, cream, pink, and silver Bacterial leaf spot and blight of Rieger Elatior begonia: Systemic movement of the pathogen, host range and chemical control trials. Plant Dis. Reptr. 61:649-653. 3 How to care for dying begonia ~ Mix 1 tablespoon horticultural oil and 1 tablespoon baking soda with 1 gallon of water. 3302018 The other key to success with rex begonias in Boomans book is tap-water quality. Your How to care for dying begonia picture are ready in this website. How to care for dying begonia are a topic that is being hunted for and liked by netizens today

A leaf spot is a limited, discoloured, diseased area of a leaf that is caused by fungal, bacterial or viral plant diseases, or by injuries from nematodes, insects, environmental factors, toxicity or herbicides.These discoloured spots or lesions often have a centre of necrosis or cell death. Symptoms can overlap across causal agents, however differing signs and symptoms of certain pathogens can. Boliviensis begonia is susceptible to bacterial leaf spot, crown and stem rot, blight, and powdery mildew if grown in overly saturated and poorly drained soil. Plants are somewhat tolerant to drought because of their waxy leaves. Begonia has no serious pests, but monitor regularly for aphids. Santa Cruz Sunset begonia seeds mature in 119. Bacterial leafspot on begonia, epiphyllum (2), sweet pepper Powdery mildew on cucumber, phlox, and zucchini Bacterial wilt on tomato (2) Pythium root rot on hemp Black root rot (Thielaviopsis . sp.) on holl. y. Septoria leaf spot on tomato (2) Black rot on concord grape Sudden needle drop on blue spruc Begonia maculata is another houseplant that has taken the plant world by storm and is super popular. This means a well-draining, looser soil type is a good idea. This is an extremely popular Rex hybrid begonia. evansiana)Photo by: Tim Ludwig / Millette Photomedia. Learn how to take care of the gorgeous Begonia maculata. and perlite

Begonia Maculata Care: How to Grow Polka Dot Begonia (Wightii

Begonia Maculata Wightii - P3500 Philodendron Splendid - P7K Philodendron Holtonianum - P9K Philodendron Tortum - P8K Cercestis Mirabilis - P11500 Begonia Kingiana - P15000 Philodendron White Princess - P18500 Philodendron White Pricess marble. Avoid allowing the leaves to get too damp and always sterilize tools before pruning. Also, avoid getting the leaves wet when watering. Make a small U. Begonia Maculata producing more than just white spots! Can any one help? Close. 3. Posted by 1 year ago. Archived. Could it potentially be bacterial leaf spot? 1. share. Report Save. level 1. Original Poster 1 year ago. Thinking that this might be fungal. Would it be smart to spray the leaves with fungicide, remove the heavily affected.

Begonia Maculata Plant: Care & Growing Guide for Begonia

BACTERIAL LEAF SPOT OF BEGONIA C. Wehlburg Bacterial leaf spot is caused by Xanthomonas begoniae (Takimoto) Dowson and considered to be one of the most serious foliar diseases of begonia. Rex be-gonias are much more susceptible to this disease than tuberous- or fibrous-rooted begonias. High relative humidity and high temperature are generall In the last year, we've been seeing a lot of Xanthomonas leaf spot and Pseudomonas leaf spot on bedding plants, particularly begonia, in addition to vegetable and herb starts. In nursery crops, the fire blight pathogen, Erwinia amylovora , is a common and devastating problem (Table 1) Bacterial leaf spots caused by Xanthomonas spp. challenge growers because they are spread so easily — via splashing, handling or insects. Growers of the florist's geranium (a hybrid Pelargonium) rely on culture-indexed cuttings or seed to avoid Xanthomonas hortorum pv.pelargonii, which can be found on hardy Geranium spp. and elsewhere in nature. . Leaf spots caused by X. axonopo

Begonia Maculata Plant Care - #1 Best Care Guid

increased bacterial leaf spot on all cultivars, but the plants that still did well under these conditions should show additional vigor under optimal production November 2002 GPN 19 vegetative matters Write in 727 Culture Quickie: Rex Begonia Fertilization. Either 150-250 ppm liquid feed or moderate levels of slow-release are adequate for. Bacterial spot is also known by other names, such as bacterial shot hole, bacterial leaf spot, or bacteriosis. The cause of the disease is Xanthomonas arboricola pv. Pruni. The bacterium was discovered in North America in as early as 1903. When you look under the microscope, you will see that the bacterium has a rod shape and is motile

Bacterial leaf spot will also infect some annual and perennial flowering plants including geraniums, zinnias, purple cone flowers and black-eyed Susan. Fungal leaf spot will infect aspen and poplar trees. Leaf spot will also cause problems for strawberry plants. Both types of leaf spot are most active when there is plenty of moisture and warm. Begonia Maculata vs. Wightti. Image Sources pinterest, pinterest. Another similar confusion people have is about Begonia Maculata and Begonia Wightii. Quite interestingly, The Wightii is not a different variety; instead, it can be called a sub-variety of Begonia Maculata that has white flowers and is the most popular one Begonia maculata (Limit of 1) $24.99 Quick shop. Begonia chlorosticta (Limit of 1) $49.99 Regular price. Quantity. Add to Cart Begonia chlorosticta (Limit of 1) $49.99 Sold Out Begonia 'Steve's Leaves Mother of Pearl' $19.99 Quick shop. Begonia 'Don Miller'.

Solving Begonia Problems. Bud dropping may be caused by too much or too little water, especially if plants are allowed to completely dry out between waterings. Although tuberous begonias do best when the soil surface dries out slightly between waterings, try not to let them dry out completely. A sudden temperature change from hot to cold or. Bacterial leaf spot (Xanthomonas campestris), one of the most common and wide-spread begonia diseases, is typically caused by excess moisture. This bacteria thrives in both dead and live begonia leaves and requires high temperatures ranging from 80 to 90 degrees Fahrenheit. Bacterial leaf spots first appear as small, blister-like growths on the. Bacterial leaf spot infects a multitude of crops and ornamental plants. The most frequently infected crops include beets, eggplant, kale, lettuce, peppers, and tomatoes. Ornamental plants that are commonly infected include begonia, dumb cane, English ivy, ficus, geranium, hydrangea, laceleaf, philodendron, poinsettia, syngonium, and plants in. First report of bacterial leaf spot caused by Xanthomonas axonopodis pv. begoniae, on begonia in Turkey H. Ornek a, Y. Aysan *, M. Mirik b and F. Sahin c a Department of Plant Protection, Faculty of Agriculture, Cukurova University, TR-01330 Adana; b Department of Plant Protection, Faculty of Agriculture, Trakya University, TR-59030 Tekirdag; and Bacterial Leaf Spot. Bacterial leaf spot causes small, pimple-like spots to develop on the angle winged begonia's leaves. Close inspection under a bright light will reveal that the pimples appear transparent. As the disease progresses, the small spots will spread and run together, and a slimy ooze will emanate from any cuts or wounds in the plant

Bacterial leaf spot, Xanthomonas begoniae. Symptoms include small blister-like spots that appear on both tuberous and fibrous begonias. The spots are translucent at first and as they age, the centers dry to a tan color. The margins of the spots usually remain translucent or water-soaked Phlox maculata (Natacha) Phlox 'Natacha' Downy mildew Peronospora sp. Geraniums (ivy & zonal) Bacterial leaf spot/blight Xanthomonas hortorum pv. pelargonii Begonia rex-cultorum Rex begonia Powdery mildew of begonia Microsphaera begoniae Fuchsia hybrida Fuchsia. One of the most common bacterial leaf spots in the landscape is caused by Pseudomonas cichorii on garden mums, which tends to be a problem in the fall as the plants fill in and leaves stay wet for long periods. Overhead irrigation and crowding can lead to an outbreak of bacterial leaf spot on almost any crop, however, at any time of the year Bacterial leaf spotting and blight is another problem. Xanthomonas campestris pv. begoniae causes water-soaked haloes with yellow edges on leaves. Reiger-type begonias can become systemically infected with this bacteria. In other begonias, it spreads from leaf to leaf, and will kill the leaves off one at a time In the spring of both 2003 and 2004, serious outbreaks of a suspected bacterial leaf spot disease were observed on tuberous non-stop begonia plants (Begonia×tuberhybrida cvs.Futta, Kleo, Apricot and Red) and strawberry begonia (Saxifraga sarmentosa) grown for potted production in commercial greenhouses located in Adana, Manisa, Yalova and Istanbul provinces of Turkey

Thinning Spots on Begonia Leaf. Hello, I'm a plant newbie located in zone 10a. I was introduced to this hobby when I was given a bunch of free cuttings at a neighborhood yard sale. Among them was this tired looking angel wing begonia. I've been trying to root the cutting in water according to some information I found on Brad's Begonia World The first symptom of bacterial leaf spot is small, blister-like spots which appear transparent when the infected leaf is held up to strong light. These enlarge and run together causing a blotched appearance. A slimy substance oozes from broken lesions. If The water conducting tissues are invaded, the whole plant may collapse and die Leaf spot diseases caused by fungi and bacteria are among the most commonly encountered problems for ornamental growers. Many different crops are affected by species of the fungal genera Alternaria, Cercospora, Colletotrichum (anthracnose), and Myrothecium. Bacterial leaf spots are most commonly caused by pathovars of Pseudomonas syringae and Xanthomonas campestris Bacterial leaf spot symptoms appear on host foliage within three to seven days after infection. This bacterium can also become systemic in some hosts. Xanthomonas species overwinter in diseased plant debris and some species have been documented existing as epiphytic populations on plant surfaces without causing symptoms Bacterial leaf spot will produce water-soaked areas on the leaves that are surrounded by yellow rings. It may cause leaf drop and, in some cases, associated stem rot may occur. Treatment: Once the disease is present, remove and destroy any affected leaves or stems and spray the plants with a bacterial leaf spot treatment Stem Rot, Cutting Rot, and Leaf Spot of Dieffenbachia Maculata 'Perfection' caused by Fusarium Solani [ 430.8 kB ] J.W. Miller, A.R. Chase, & N.E. El-Gholl . Jul 1983. 248. Bitter Rot of Apple Bacterial Leaf Spot of Begonia [ 27.4 kB ] C. Wehlburg. Oct 1967. 61. Rose Mosaic in Florida.