Burnham Nurseries - Orchids - FAQ's
Black marks on leaves can be many things. The marks themselves are caused by a bacterial infection which sets in when the cells die. The breakdown of the cells is usually connected with a cultural problem, most often over-watering or overfeeding. Too much direct sun in summer can scorch the leaves causing a brown and black burn mark.
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This is an indication of a fungal infection. Fungal infections are usually the result of warm temperatures, high humidity and low light levels. Treat the plants with a systemic fungicide such as Phyton 27.
Blackspot is a fungus that causes black spots about 1/16 to 1/2 inches in diameter to form on the leaves and sometimes stems. The infected leaves later turn yellow around the spots and eventually fall from the plant. In bad cases, blackspot can severely defoliate a rose bush. The conditions that promote blackspot are wet leaves, splashing water and warm temperatures. Here are some ways to combat blackspot. Most of these methods also apply to preventing and treating powdery mildew.
E46 FAQ by Kris Linqusit
Michael "IronMike" Huoh on A4.ORG discovered that you can mix lexol with a brand of shoe polish that will make black leather look new again. View this entry on the AudiWorld FAQ.
What's Wrong with my Shrub? -
Uusually back sooty deposits on leaves and branches are a fungus growing on sap produced by insects. It is not unhealthy for the shrub, but is unsightly. These can be aphids, but on shrubs the cause is often scale, small bumps on stems and underneath leaves. Again, this is rarely damaging to established shrubs. Treatment is to physically remove with your thumbnail or a small stick.
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Yes, sometimes, the grain is present due to the nature of the wood. The black streaks are sometimes the result of pronounced grain in the wood and can be attributed to mineral deposits in the wood. These streaks are not defects in the wood and are only natural.
Frequently Asked Questions About Credit Ratings - FreeAnnual...
Some local banks make mortgages they keep "in-house", this means they will not be sold in the secondary market. These loans may carry higher rates and larger down payment requirements but you will always deal with your local banker who might be willing to take a more lienient approach to your credit history. Be sure to ask if the bank keeps their loans "in house" when calling for information. There should be mortgage brokers in your area specializing in making loans to people with bad credit.
A fungus called Blackspot. It is a common disease in our humid summers. Spraying a fungicide and increasing sun and circulation helps reduce this disease.
Black spots are endemic in a number of varieties of orchids, most notably those in the Oncidium or Oncidium family intergenerics. These spots are not a sign of disease. They cannot be removed, and will not spread from plant to plant. You can think of them as freckles. These spots are generally small and dry. If, however, your plant suddenly develops large black spots, particularly if they are moist, this could be a sign of disease.
FAQ's - One Two Tree
Sooty Mold. This superficial fungal disease is more of a nuisance than a life death problem. When present, this is a symptom of a more serious problem, scales, aphids, etc.
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This is sooty mold, which is a fungus that is caused by the excretions of honeydew from insects like aphids, scale, greenbugs, and mealybugs that in turn attracts ants which encourages growth of the fungus. The cure for this is to treat for the honeydew producing insects that are ultimately the cause of the problem. Once treated, this will stop the problem from spreading and new growth that emerges from the plant will not be infected by the black fungus.
Orchid Learning Center - Caring for Orchids
This is generally a leaf rot caused by types of fungi that are commonly classified as Cercospora or Colletotrichum. Many times this rot will start out as yellow spots, gradually turning to a brown or black color. Note that certain plants such as most Oncidium hybrids often get several small black spots on the leaves due to the sun. In this case it is natural spotting and will not harm the plant.
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Bronze bodied planes will sometimes leave a mark on your work, especially if they have not been used for some time. In our experience, some people find this marking an intractable problem, others aren't bothered. It should only be a concern with a finishing cut on light wood. With tools used for that sort of work, keep the sole well waxed to minimize marking (of course wax may interfere with some finishes).
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Check for bugs, especially on the undersides of the leaves. If no bugs are present it could be an environmental or nutrient problem. Take immediate demands off the plant (move light up, check nutrient strengths, and pH. Relieve stress) and call the technical line on 0845 345 5172 for further advice.
Fence-All - FAQ for Wood Fences
Black stains are caused by natural wood extracts interacting with the metal. Moist wood increases the likelihood of this interaction. To help avoid this Fence-All uses only hot-dipped galvanized spiral nails and fasteners. For ACQ Pressure Treated Lumber, which leaches copper, special double galvanized fasteners are required.
Master Gardener Faq: Fruit Crops - Osceola County Extension ...
Look beyond the discoloration for piercing, sucking insects that are causing the discoloration. Often aphids, whiteflies and scale insects are feeding on the undersides of leaves and along stems and producing excreta that falls on the leaves. A sooty mold fungus then lives on the nutrient-rich excreta to produce the unsightly leaves. Some insect activity and sooty mold growth can usually be ignored, usually on older trees.
FAQ's - Citrus
Sooty Mold - Appears as a black, sooty growth on the upper side of leaves. Is harmless, but indicates that an insect was or is present (usually aphids, whiteflies or scales). Whiteflies. As these piercing-sucking insects feed on the undersides of the leaves, they secrete a sticky, clear fluid that drops onto the leaves below. Sooty mold grows upon this secretion. Sooty Mold Water or Varietal Problem. The problem of splitting fruits usually occurs in the early fall.
Burnham Nurseries - Orchids - FAQ's
A:The cymbidiums are now coming to the end of their season and so when their flowers have all gone, cut the stem back to the base to make the plant look tidier. At the end of May, or when the frosts have gone, then stand them out doors for the summer months. This will help to encourage the flowers for next year. Feed them through the summer with high nitrogen feed to boost their growth.
Euroorchid - Online Orchids and Orchid bouquets
This should be disposed of and the vase should be filled with water, so that the cut growths can also get water.