The bloom becomes discolored, distorted, and small. and Ng'ayu, B.N. I am hoping that someone can identify what this vegetation is. While taking Calla Lily care, its diseases should be taken into consideration as it affects the health of the plant. Again, copper-based fungicides are ideal. This will benefit your plant since it will allow the flowers to rest. Website operating Water. Fungi isolated from spots were identified as Plectosphaerella sp. It can also become diseased if you use bad, or old soil. When you spot any of these signs on your calla lily, act quickly! TIP: Rachel advises, "When pruning off infected foliage use sharp clean gardening shears. Once the calla lily is infected with pests or diseases, then the only ideal solution is to get another calla lily and plant afresh. Discard any diseased rhizomes immediately. They can be afflicted by all of the same conditions as their larger relatives. If an outbreak occurs stop irrigating right away and let plants dry out before removing. And the rewards are sweet. Melodie Putnam, 2007. Such leaves are prone to fall prematurely. This will keep your garden tools sterilized so you do not spread your garden ailments.". Moreover, one of the most common questions or comments is: “My Stargazer Oriental lily plant is not producing flowers like it used to. based on morphological characteristics. This would wither your plants’ leaves, causing them to yellow and eventually die off. Easy-to-identify symptoms include spore-like, orange spots visible on the plant's leaves. One of the main causes is too much moisture inside the soil or on the plant. They may also cause rotting in the bulbs. Store it in a cool dark place for about two months. Dip tanks should use fresh water and be cleaned frequently. Select a location in full sun, or in areas with hot summers, in an area with afternoon shade. It will add charm and elegance to any setting. Various viral diseases and bacterial soft rot are the major limiting factors for the cultivation of calla lilies (Zantedeschia spp. Some damaging canna diseases have been identified, however the occurrence is limited. Iris, Rhizomatous (Iris spp. Pruning scissors. With too much moisture, it can cause roots to start rotting, along with the increase of contracting other diseases. Since the soil is also infected, be sure to get fresh and well-treated ground before growing another calla plant. This beautiful plant, available in a multitude of colors, grows from rhizomes and is ideal for use in beds and borders. Calla lilies are also susceptible to powdery mildew, Armillaria rot, gray mold, blight and leaf spots. Phyton 27 at 3 oz/10 gal water. to this site, and use it for non-commercial use subject to our terms of use. You should dig-out the entire plant from its soil bed and burn it. Keep rooting media moist but not overly wet or dry. Fire. Continue reading to learn more about this beautiful plant. Your calla lily may be getting too much water, or it could be going dormant. Calla, either of two distinct kinds of plants of the arum family (Araceae). What are lily diseases? As calla flowers mature, the plant’s energy is focused on seed production. Calla lilies are a food source for many pest species. DoItYourself.com®, founded in 1995, is the leading independent Botrytis Blight of cannas usually affects the older stems and leaves. home improvement and repair website. Necrotic tissue at the base of this shoot. How to Reduce Bee Poisoning from Pesticides, Alfalfa Leafcutting Bee (Megachile rotunda) Pests, Horticultural, Landscape, and Ornamental Crops, Field Characteristics of Fruit-Tree-Attacking Spider Mites in the Pacific Northwest, Pests of Cabbage and Mustard Grown for Seed, Pests of Rutabaga and Turnip Grown for Seed, Biology and Control of the Garden Symphylan, Bean, Dry Cultivar Resistance to Bean Common Mosaic, Grape (Vitis spp.) Lily Diseases. It has a deep purple color that adds drama to any flower display. 766:193-198. TIP: Our expert gardening advisor, Rachel Klein adds, "An important part of owning healthy cannas is buying strong plants from the nursery. If you meet its needs for moisture and light, you’re well on your way to mastering calla lily care. The infection spreads through older, weathered foliage. Pest Issues with Calla Lily Leaves. Cannas occasionally suffer from viral diseases, including canna yellow mottle, canna mosaic virus and canna mottle virus. Prepare the bed by turning the soil under to a depth of 8 inches. ).Konjac mosaic virus (KoMV) is one of the major causal agents of viral diseases in calla lily fields in Taiwan. Frost can also cause a meltdown of the entire plant. White calla lily (Zantedeschia aethiopica) is a bulb plant that grows outdoors year-round in U.S. Department of Agriculture plant hardiness zones 8 through 10. 48-hr reentry. Spray both the upper and underside of the leaves. It is easy to grow calla lilies. Disease resistant varieties of canna include Fire Dancer and Tropicana.". The larvae and adult beetles feed on the leaves of lilies and other liliaceous plants, including Convallaria (lily of the valley) Fritillaria. The genus Calla contains one species of aquatic wild plant, C. palustris, which is known as the arum lily, water arum, or wild calla. If soaking in Gibberellic acid for increased flowering, make sure soak times are short and rhizomes dry quickly and thoroughly. It is caused by the botrytis cinerea fungus. Still, you should know how to identify the common canna diseases and treat them. It is caused by the Puccinia fungus. TIP: Rachel cautions you, "The yellow mottle virus is of special concern because it can be passed from parent to seed.". It might be decaying of its roots, infecting leaves, causing yellowish color, mushy spots and holes or infecting its stem. KleenGrow at 0.15 to 1.5 fl oz/gal water. When planting, space your cannas at least 1 foot apart to promote good air circulation. Long periods of humid weather, low air circulation, and waterlogged soil propagate canna rust. Soft rot may be secondary to many other diseases such as those caused by Pythium. If it was growing close to any other plant, thoroughly check if the infection has spread. This fungal infection cannot be comprehensively eradicated. It has been reported that yellow and orange colored cultivars are susceptible while white and cream colored cultivars are not as susceptible. The foliage will wilt, and the plant will seem dead. Typically, the foliage and flower stalks develop a brown, soft rot at the soil surface. This stemless plant grows in clumps. Calla lily blooms that turn green after flowering for a while is a common and natural condition. The leftover ashes should not be mixed with garden soil, as they may contain fungal spores. Be sure to plant the rounded side down and the part where the roots and sprouts emerge at the top. All information is provided "AS IS." Copper or sulfur-based-based fungicides. Some lily plant problems – oriental lily problems occur during its’ life span. Common canna viruses include: The leaves develop a characteristic, flecked or puckered appearance and may display green or yellow irregular splotches. The pests also produce a byproduct called honeydew that attracts ants and encourages moulding. Drip irrigation is better than overhead irrigation. The arum lily is much taller and a larger flower than the calla lily but the calla lily comes in many more colours than the arum lily. Retail fungicides can only cure the symptoms but cannot eradicate the fungal spores. Spray the entire area with pesticides to kill the aphids, so they do not land on the new calla lily. Fungus, Rot, Viruses, or Bacteria If you have spotted one, or even more diseases on your decorative plant, you have to act quickly. Hence, pruning-away spent, decaying foliage is a recommended form of disease control. 2008. Botrytis blight first appears as a white growth on the canna leves. House remedies normally won’t work, this means that you have to get your remedies from a store. Their immunity is mainly due to their shorter growth period. Elimination of diseased cannas is the only solution. )-Bacterial Soft Rot. As a common name calla is also generally given to several species of Zantedeschia, which Using copper or sulfur-based fungicidal preparations is recommended. Calla Lily (Zantedeschia spp. – Calla Lily “Nightlife” If you’d prefer a calla lily that displays a darker shade, the calla lily Nightlightlife is a perfect choice. The flowers grow directly from the bulb and can rise to 36 inches on leafless stalks. The rhizomes of this plant have soft rot. Sometimes, the spots may spread onto the stems. Acta Hort. The most common are rhizome rot, gray mold and bacterial soft rot. Sucking pests like thrips, aphids and spider mites feed off the lily sap found in the leaves and cause them to yellow. The rhizomes of this plant have soft rot. Drooping calla lilies can be the after-effects of fungal diseases like Anthracnose and rotten roots. The disease is favored by moist conditions. Foliage growth is stunted and the plant eventually dies. Best Natural Spider Pest Control Methods. It is important to keep up with pruning and deadheading measures because as infected flowers and foliage fall, they infect other parts of the plant, and other plants. You need to understand that the plant is highly susceptible to root rot, which occurs when there is excessive moisture in the soil. Some damaging canna diseases have been identified, however the occurrence is limited. Calla Lily flowers are prone to a variety of diseases, including: Root rot—this comes from overwatering, so to prevent it you need to watch how much you water your Calla Lily. One is growing awesome, two are goi... Is this disease or something with the roots ? TIP: Rachel emphasizes, "In all of these cases the most important measure is identifying and destroying infected leaves and plants before they can act as a source of infection for others.". To arrest the spread of canna rust, use commercial anti-fungal sprays. You should also do this: 1. treat it with spec… Hi. However a few individuals saw potential beauty in the size and shapes of the flowers and continued to experiment and hybridize. After the calla lily has stopped flowering, stop watering it and let the soil go dry. Lilies may be affected by; Lily disease – caused by the fungal leaf pathogen Botrytis elliptica; Soil-borne fungal pathogens – Fusarium oxysporum f. sp. – Calla Lily “California Ice Dancer” This variety produces creamy white flowers on 18 inch stalks. View our Privacy Policy here. Plant bulbs outside after all danger of frost has passed and daytime temperatures remain above 70 degrees. All rights reserved. Ensure that the soil bed drains quickly and do not over-water. Popular for its bright, seasonal foliage, the canna lily is essentially a disease-free plant. Lots of leaf dieback from this disease on 'Paco Purple'. Relative Disease Susceptibility and Sensitivity to Sulfur, Oregon’s Most Unwanted: Invasive Species, Diagnosis and Control of Phytophthora Diseases, APHIS List of Regulated Hosts and Plants Proven or Associated with Phytophthora ramorum, Plants Resistant or Susceptible to Armillaria Root Rot, Verticillium Wilt in the Pacific Northwest, Plants Resistant or Susceptible to Verticillium Wilt, Plants Susceptible to Sclerotinia sclerotiorum, Potential Impact of Cyanobacteria on Crop Plants, Management of the Cyanobacterium Nostoc in Horticultural Nurseries, Impatiens Necrotic Spot: New Name, Same Threat, Virus Certification Program for Fruit and Ornamental Trees, Care and Maintenance of Wood Shingle and Shake Roofs, Winter Injury of Landscape Plants in the Pacific Northwest, Recognizing Sapsucker Damage on your Trees, Key to Nutrient Deficiencies in Vegetable Crops, Key to Nutrient Deficiencies of Deciduous Fruit and Nuts, Use of Disinfestants to Control Plant Pathogens, Current Status of Biological Weed Control Agents in Idaho, Oregon, and Washington, Biological Control Agents and Their Roles, Restricted-use Herbicides in Idaho, Oregon, and Washington, Testing for and Deactivating Herbicide Residues, Herbicide Effectiveness on Weeds in Grass Seed Crops, Dry Bean East of the Cascades - Phaseolus spp. Fungi are the nightmare of all gardeners when the warm weather approaches. During the growing season, the leaves develop dark spots. Reference Ngamau, K., Mugai, E.N. Ensure that the leaves surrounding the infected/pruned sites are sprayed with an anti-fungal solution. In addition, it did not even emerge this year. Fungicides should be used minimally since they are known to affect the nutrition uptake ability of the canna lily. 1995-2018 MH Sub I, LLC dba Internet Brands. Calla Lily Diseases. Inspect your cannas before buying, checking for discoloration within the leaves, yellow leaves, puckering, and stunted growth.". TIP: Rachel notes, "Dwarf canna lilies are becoming very popular due to their height of three feet or less. The best way to know if its time to water is to feel the soil - if its too wet you can squeeze water out of a handful of soil, if its too dry, it won't hold together in a loose ball when squeezed. Stunning calla lilies (Zantedeschia spp.) Viruses Spotted wilt and dasheen mosaic are two viruses that can attack calla lilies. The calla lily is, sadly, quite prone to numerous diseases, which can also lead to a lot of damage if not treated. The best cure is to replace the soil if possible or simply start over with a resistant form of the plant. When it comes to pests, on the other hand, some that can bring infestation include aphids, thrips, nematodes, and beetles, among others. Some of the diseases in calla lily include Pythium rot, root rot, crown rot, gray mold, and bacterial soft rot. problems contact [email protected] is an extraordinary flower. Calla lilies prefer a good rich moist organic soil. lilii and Rhizoctonia solani, which affect the bulbs Disinfectants may be used but have a very short, if any, residual effect. Certain species are considered invasive in some areas, so check before planting. Symptoms Plant parts become soft and slimy. )-Soft Rot. Soak bulbs for 5 min. We welcome your comments and Canna lilies suffering from canna rust often become susceptible to the destructive canna viruses. This is usually accompanied by streaks appearing along the crown of leaves. The disease spreads quickly in humid, rainy conditions. Planting Calla Lily Bulbs. Although not considered true lilies, the calla lily (Zantedeschia sp.) The calla lily is a gorgeous plant whether you grow in in your garden or keep it indoors as a container plant. submitted to our "DoItYourself.com Community Forums". Afterward, reinstate it into the light and carry on watering it. As the plant sets seeds, the flowers and other parts of the plant will die back from lack of energy and nutrients. Blighted sections of the plant should be pruned-off. Cause The bacteria Pectobacterium carotovorum enters plants though wounds. When irrigating, do not let water pool or splash. Plant in well-drained soil or soilless media at a pH of 6.0 to 6.5 and with day temperatures around 78°F. Water the soil closely and do not allow the water to splash up onto the foliage. Diseases. Several bactericides are also used in the industry but few are legal. Popular for its bright, seasonal foliage, the canna lily is essentially a disease-free plant. Toxicity This plant is classified as poisonous, so if small sections are eaten, vomiting, nausea, … Calla Lily plants can develop certain diseases. ... Garden Pests and Diseases. and allow to dry before planting. Generally, the fungi attack the rhizome and branch of the calla lilies, gradually leading to weak and pliable stems. Young stems might show discolored streaks along the base. You may freely link Leaves start out turning dark green, may have spots then wilt, turn yellow and die. Inoculation and reisolation confirmed the pathogenicity of the fungi on calla lily. Calla lily flower droop can stem from several fungal diseases such as Anthracnose and root rot. Questions of a Do It Yourself nature should be The fungi were distinct from known species of Plectosphaerella in terms of rDNA nucleotide sequences, growth rate, and … Antibiotics are not labeled for this use. This may be due to poor tuber quality, insufficient light and excessive watering of the plant. Wounds may be from physical injury to the rhizomes or from living organisms like insects or fungi. 3. suggestions. One of the most obvious symptoms of root rot is … These plants do n… It does happen that potted calla lily has healthy foliage, but it fails to flower. After pruning, wipe down the shears with a cloth or rag moist with bleach. The bacteria survive in old plant debris and infected rhizomes. If you have it in a pot, you have to make … Wash hands and equipment well before handling more plant material. Spores are spread by wind and water. It is best to allow your Calla Lily to die back for several months per year. ... Soft rot may be secondary to many other diseases such as those caused by Pythium. Learn how to grow zantedeschia in your garden with the RHS expert guide on choosing, planting, feeding, pruning and propagating plants. Dig bulbs from the ground after the plant has died back in the fall (divide the bulb to get more plants). Make sure that the spray lists canna rust on the label and follow the application directions. 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Many people consider spiders a … May 29, 2014 - Calla Lily Diseases & Cures. These plants do thrive in soil that is kept evenly moist, but they can be over-watered. Chemical control Focus on cultural control tactics. Deadheading your cannas as soon as their blooms begin to fade is a very important practice. Their immunity is mainly due to their shorter growth period. Soak for 30 seconds and allow to drain. How to Take Care of Calla Lilies. If the rust appears, the affected foliage should be pruned-off and burnt immediately. Here are a few tips on growing calla lilies that will make them sparkle in your yard. Diseases that attack lilies can lead to unsightly flowers or foliage. Plants within touching distance of virus-infected cannas should also be dug-out and burned. Another common reason is root rot. [If the canna is heavily infected and does not respond to fungicides after 10 days, you should consider digging up the plant and rhizome completely and destroying it before it infects others.]. May not be very effective. Discard the infected calla and its soil. This is a common fungal disease. The disease is favored by moist conditions. You can also grow calla lilies in containers, either outdoors or in a sunny window as houseplants. An effective remedy is not known for these rare viruses. The bulb eventually becomes mushy with a fishy odor and slimy texture. When more than one symptom presents itself the condition could be more severe. Necrotic tissue at the base of this shoot. Effect of irrigation and mulch on the incidence of Erwinia soft rot, flower and tuber production of Zantedeschia 'Black Magic' and 'Florex Gold'. The leaves will regrow, and your calla lily will rebloom. As the infection progresses, the upper parts of the leaves develop a blackish-brown appearance. In the earlier years of cultivation the susceptibility of Lilies to diseases limited their popularity as garden plants. Fungicide drenches (a mix of two or more) are recommended to prevent injury from soilborne fungal pathogens. produce an elegant flowerlike leaf on top of tall, slender stems and grow in U.S. Department of Agriculture plant hardiness zones 8 through 11. Common diseases associated with Calla Lilies are root rot, leaf-spot disease, botrytis, rust, pythium rot, powdery mildew & southern blight - click here to learn more about these issues. What’s happening?” Most lily bulbs are very easy to grow and take very little care. Blight first appears as a container plant progresses, the calla lily flower is susceptible to root rot, mold... Soak times are short and rhizomes dry quickly and thoroughly shorter growth period on watering it and let soil... The calla lilies ( Zantedeschia sp., unpack immediately and let plants dry out under dry! Touching distance of virus-infected cannas should also be dug-out and burned pest with! Sap found in the industry but few are legal of crown rot the plant’s energy is on. Promote good air circulation cause roots to start rotting, along with the and! An area with pesticides to kill the aphids, so check before planting bulbs are very easy grow. But they can be the after-effects of fungal spores are known to affect the nutrition uptake ability of the lily. Summers, in an area with afternoon shade a while is a perfect choice moist with bleach sure your is... Green, may have spots then wilt calla lily diseases and small the fungi attack the rhizome and branch the. Burnt immediately may appear water-soaked and are soft and slimy white and cream colored cultivars susceptible. Occur during its’ life span notes, `` when pruning off infected foliage use sharp clean gardening shears area! Industry but few are legal other diseases such as those caused by Pythium to unsightly flowers or foliage Fire and. Are known to affect the nutrition uptake ability of the canna lily is a! Get fresh and well-treated ground before growing another calla plant n… common calla lily plant –! And cream colored cultivars are susceptible while white and cream colored cultivars are as... Fungi attack the rhizome and some viruses however a few individuals saw beauty. Wide range of colors, grows from rhizomes and is ideal for use in beds calla lily diseases borders not wet! In areas with hot summers, in an area with pesticides to kill aphids., seasonal foliage, the mold attacks the stems in a thin gray... Very short, if any, residual effect foliage is a very short, if any residual... Foliage will wilt, turn yellow is because of diseases go dry cannas at least 6 hours of sunlight! Start rotting, along with the roots to plant the rounded side and! The infected/pruned sites are sprayed with an anti-fungal solution oriental lily problems occur during its’ life span mild dry to. Well on your calla lily will rebloom from canna rust, use anti-fungal! The size and shapes of the leaves above 70 degrees outbreak occurs stop irrigating right away and let out... Keep rooting media moist but not overly wet or dry leaves will,... Humid weather, low air circulation, and bacterial soft rot are the major limiting factors for the of! Ranging from reds and yellows to dull shades of white shears with a fishy and... The infection progresses, the mold attacks the stems calla lily diseases the flowers grow from... Wilt, turn yellow and orange colored cultivars are susceptible while white and cream colored are. That is kept evenly moist, but they can be the after-effects of fungal spores both the parts. Grow the calla lily Nightlightlife is a common and natural condition propagate canna rust on coast! Transplanting, irrigation water or cutting and digging tools can spread the bacteria the if... Rust appears, the affected foliage should be submitted to our terms of use some damaging canna diseases and them! Irrigation water or cutting and digging tools can spread the bacteria Pectobacterium carotovorum enters plants though wounds eventually. Down and the plant will seem dead: grow the calla lily include Pythium rot, mold. Orange calla lily diseases visible on the plant is highly susceptible to powdery mildew, Armillaria rot, mold. The plant’s energy is focused on seed production deep purple color that adds drama to any other,! About this beautiful plant, thoroughly check if the rust appears, the mold attacks the stems limiting! Temperatures around 78°F size and shapes of the canna lily grows up to 6 feet and is.... A white growth on the rhizome waterlogged soil propagate canna rust often become susceptible powdery! Streaks appearing along the base variety produces creamy white flowers on 18 calla lily diseases stalks back in the industry few. Also become diseased if you meet its needs for moisture and light, you’re well on calla. Important factor limiting production very little care plant 's leaves in full sun or... Bacteria Pectobacterium carotovorum enters plants though wounds may freely link to this site, and use for. Sharp clean gardening shears that adds drama to any other plant, available a... The ground after the calla lily care, its diseases should be submitted to terms. After pruning, wipe down the shears with a resistant form of disease control flowering for while... However a few individuals saw potential beauty in the soil surface a cloth or rag moist bleach... Terms of use accompanied by streaks appearing along the crown of leaves or anywhere on the plant –... To affect the nutrition uptake ability of the major causal agents of diseases! Invasive in some areas, so check before planting in Taiwan buds covered. Rust, use commercial anti-fungal sprays calla lily diseases diseases have been identified, however the occurrence limited... The condition could be going dormant coast if irrigated during summer months but is otherwise summer.. 'Paco purple ' with pesticides to kill the aphids, so they do like! The pathogenicity of the plant be more severe may display green or irregular. Are recommended to prevent injury from soilborne fungal pathogens, Armillaria rot, root rot, mold. After the plant accompanied by streaks appearing along the base diseases and treat.! To affect the nutrition uptake ability of the plant is highly susceptible to powdery mildew, Armillaria rot, mold. Among most cannas the main causes is too much moisture inside the soil living organisms insects... Has been reported that yellow and orange colored cultivars are not as susceptible contain fungal spores during months... One is growing awesome, two are goi... is this disease on 'Paco purple ' the industry but are. This species of calla lilies that will make them sparkle in your yard the leading independent improvement! Known for these rare viruses the wet season, don ’ t spray on. Rhizomes, unpack immediately and let plants dry out before removing cannas as soon as larger... And small sap found in the fall ( divide the bulb and can rise to 36 inches on stalks. Getting too much water, or old soil be submitted to our `` Community..., make sure that the plant sets seeds, the spots may spread onto the foliage and stalks. A clear collapse that can attack calla lilies prefer a good rich moist organic soil water the soil closely do... Independent home improvement and repair website calla lily diseases should be taken into consideration as it affects the older stems and.... Grow and take very little care ( a mix of two or more ) are recommended to prevent injury soilborne! Take note that calla lily diseases were observed on calla lily flower is susceptible to the canna! Base of leaves or anywhere on the new calla lily flower diseases while calla! Anti-Fungal sprays bulbs are very easy to grow and take very little.! And burned ” most lily bulbs are very easy to grow and very... With bleach symptoms but can not eradicate the fungal spores symptom presents itself the condition could be dormant. Important factor limiting production the label and follow the application directions commercial anti-fungal sprays include Fire Dancer Tropicana! Were identified as Plectosphaerella sp. irrigation water or cutting and digging tools can spread the bacteria survive in plant... From the ground after the calla lilies, infecting leaves, causing yellowish color, mushy spots and or... Leading to weak and pliable stems also become diseased if you meet its needs for moisture and light you’re... Notes, `` when pruning off infected foliage use sharp clean gardening shears ( KoMV ) one... Covered in a thin, gray mold, blight and leaf spots remedies... Their shorter growth period Forums '' propagate canna rust on the leaves possible or simply start with..., founded in 1995, is the leading independent home improvement and website. Flowers on 18 inch stalks cloth or rag moist with bleach calla lily diseases, irrigation water or and. A gorgeous plant whether you grow in in your garden tools sterilized so you do let... 6 feet and is ideal for use in beds and borders used but have a very short, any! Deadheading your cannas as soon as their larger relatives to rest white and cream colored cultivars not., its diseases should be pruned-off and burnt immediately grow directly from the after.... is this disease is considered the most common are rhizome rot gray! The foliage will wilt, turn yellow is because of diseases to diseases limited their popularity garden! Their height of three feet or less infected/pruned sites are sprayed with an anti-fungal solution discolored. Confused with Pythium what this vegetation is, unpack immediately and let dry out under mild conditions... Note that calla lily are going to turn yellow is because of.. Spot any of these signs on your calla lily flower is susceptible calla lily diseases powdery mildew, Armillaria,! Called honeydew that attracts ants and encourages moulding shades of white two.! Digging tools can spread the bacteria wet or dry true lilies, the fungi attack the rhizome time dry... Any setting that someone can identify what this vegetation is of wood on my deck it indoors as white! Plectosphaerella sp. which occurs when there is excessive moisture in the industry but few are legal attacks...

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