However, if you must spray during the growing season, use a diluted mixture of the fungicide as follows: 1/3 tbsp. Either application method is suitable. Sulfur Plant Fungicide. Don't some Dendrobiums have a negative reaction to copper based products? Check the label for type of copper and any cautions that accompany its use. Both, in a weekly rotation. Copper Copper-based pesticides and fungicides are a popular dormant spray and lime sulfur alternative. Sulfur Plant Fungicide. It can be used as a foliar spray, a root drench, etc. Since the blight spores travel through the air, wouldn't a protectant fungicide work just as well for those leaves that are not infected on the plant? Since your tree is very young and in a pot, you might consider reading up on fungicides. Copper is a foliar fungicide with protective action. Lime-sulfur, a fungicide composed of inorganic sulfur and lime, is commonly used today to control a variety of diseases such as plum pockets, black knot, black spot of rose, and a number of raspberry diseases. I stunned some with too strong a mixture. Alternatively, it can be applied to animals to manage fleas and ticks. Can't you just get copper sulfate? A specially prepared micronic sulfur suitable for use as a dust or spray. There have been issues with copper and the environment and certain formulations are toxic to beneficials. Do not apply sulfur to sensitive crop cultivars or at temperatures above 80 degrees Fahrenheit. Tank-mixing certain fungicides can increase the risk of phytotoxicity. The copper penetrates the leaves of the plant and can kill harmful organisms such as funguses. Be sure to use the correct amounts of Daconil. Also, remember the sulfur will burn the leaves if applied in hot sun at temps over about 85 degrees. Purchased in the dust form, wettable sulfur is mixed with water to create a spray treatment. One advantage to the dust form is … Pros Sulfur is a natural element that is essential for plant health. Ideally, the copper concentration on the leaf surface should be high enough to kill the fungus but so high as to harm the leaf tissue. Which type of fungicide is better for orchids, copper-based or sulfur-based? Copper compounds are widely sold as fungicides for orchard and garden use. Read the label! I just bought both of them from Home depot, one contains sulfur while the other contains copper. Copper is a more harsh chemical and can be damaging to … Sulfur is a very common and highly effective fungicide that has been in use in one form or another for a very long time. For instance, do not tank-mix sulfur and oil-containing products or spray them within two weeks of each other. Currently Active Users Viewing This Thread: 1. The key difference between copper oxychloride and copper sulphate is that copper oxychloride is an organic compound of copper and is useful as a fungicide and bactericide whereas copper sulphate is an inorganic compound of copper and is useful as a fungicide and herbicide. I know physan is better but I need to wait 1 week or more before it arrives thru the mail. Organic fungicides are used to control all types of fungus problems on organic crops, including bio-fungicides to copper and sulfur based products. Use caution in high heat and under bright lighting to prevent burning. Sulfur (Bonide Sulfur Plant Fungicide) and copper fungicides (BONIDE Copper Fungicide Dust) can prevent powdery mildew issues and control existing fungal problems. Approved for organic gardening. Try Phyton 27. It is also a good pesticide to kill insects, mites and rodents. I have some experience with Copper+, Copper Sulphate and Sulfur. The strongest and most broad-spectrum fungus controls we offer. Ami, thanks. This product controls a large number of diseases on fruits, vegetables and various ornamentals. If you want to go the inorganic route Daconil would be a better choice as a protectant fungicide… Physan 20 has no fungicidal properties. copper … But my cymbidium has been developing lots of (probably) fungal leaf spots and brown leaf tips. Others, such as captan, tebuconazole, and chlorothalonil, are synthetically produced and not used for organic gardening. Copper fungicide is better at killing existing fungus and sulfur is good for preventing spread, so sulfur is better to apply at the first sign of fungal issues. These compounds can be highly phytotoxic to many fruit crops and must be used with extreme care. Copper and Sulfur fungicides are used as protectants and once the plant is infected they are of no use. Too many cancers in our family. Not clear to me why that would be the case. The most popular use today is in the form of Bordeaux Mixture, which combines copper sulfate with lime. Copper Compounds - Bordeaux. I imagine you've done some searching; here … Copper kills bacterial problems, too, as well as fungal. Some are labeled for ornamentals, but might be okay since you are years from eating fruit from this tree. I've never used the copper, but, I use the sulfur copiously. There are many types of copper products that you can choose from. This fungicide uses a natural component utilized by plants hence making it friendly to pets and people. My plants are in Earth Boxes with covers on top. Copper kills bacteria, including the bacteria of the fungicide "Serenade," which uses. I did not know that about copper and sulfur. In france copper sulfate is widely used for treatement in the vineyards and or many plants. Fungicides like chlorothalonil, mancozeb, and copper can be applied to prevent late blight infection in tomatoes Amanda Gevens, Ken Cleveland and Lauren Thomas, UW Madison – … Add a round of Daconil, too. While plants can withstand copious amounts of sulfur because of historical reasons. Sulfur fungicides … Orchid Board - Most Complete Orchid Forum on the web ! Copper fungicides are often the first line of defense, especially for gardeners who prefer to avoid chemical fungicides. c Fixed copper compounds that are registered for use on grapes include Kocide 101, BCS-Copper Fungicide, Ten-Cop 5E, copper oxychloride sulfate (C-O-C-S), and many other compounds and formulations. Never apply copper to strawberries, because severe phytotoxicity will result under almost any conditions. It is a bacteriacide/disinfectant. There have been issues with copper and the environment and certain formulations are toxic to beneficials. Often used in the dormant season. Or does the fungus spread from within the plant (didn't think it did). Rinse foliage with SuffOil-X on a regular spray schedule for continued control of powdery mildew issues. We’d recommend cutting away as much infected material as you can and then applying a copper fungicide to kill what’s left. This is what early season scab infection looks like, causing blossom drop and leading to less or loss of yield. thanks. Copper Fungicides – A Comprehensive List of Products Used for Vegetable Disease Control T. A. Zitter Department of Plant Pathology & Plant-Microbe Biology Cornell University Ithaca, NY 14853 Reissued April 2012 Copper was one of the first elements used as a plant fungicide (the other was Sulfur). # 10 Copper can be detrimental to plants and soil when applied in rates above the recommended amounts. (page 4) Sulfur isn't recommended for pluots (using prunes and plums on page 7) until pre-harvest, but dormant oil is recommended now. Copper and fungicides limit infection and prevent the spread of bacterial and fungal diseases such as peach leaf curl, fire blight, powdery mildew, shot hole, and brown rot. I also have a cattleya that has some root rot and could use treatment. But it's always best to use a rotation of different fungicides, or else whatever you have can develop resistance. Thus, copper fungicides may also injure fruit and foliage. Copper and Sulfur fungicides are used as protectants and once the plant is infected they are of no use. The use of copper as a fungicide has been practiced for centuries. This product controls a large number of diseases on fruits, vegetables, and various ornamentals. It works much better as a preventative measure rather than curative, and i suspect it's the same for only copper or only sulfate products, No never heard of it would like to know about it though. Copper works fine, though it is doing little against mites and you can apply too much, resulting in copper toxicity. I would think that the copper base would be more suitable for root issues that the sulphur, but afaik both are fine. The fine particle size gives better coverage, adhesion and disease control. Approved for organic gardening. According to the National Center for Food and Agricultural Policy, copper, one of the top two organic fungicides (sulfur’s the other one), was used at a rate of 4 pounds per acre in 1971. September 02, 2008 Use only when other techniques have failed. It has extensive coverage and possesses high distribution efficiency. While plants can withstand copious amounts of sulfur because of historical reasons. Use Bonide Sulfur to a broad spectrum of vegetations, fruits, decorative plants, and pinks. Copper works fine, though it is doing little against mites and you can apply too much, resulting in copper toxicity. Its discovery can be traced back to the famous origin of Bordeaux mixture, containing a mixture of copper sulfate (CuSO4) and slaked lime, and used for downy mildew control in French vineyards. Ami- I like copper pretty well and have had good results with it. The purpose of adding lime to copper sulfate is to reduce the damaging effect copper … I have some experience with Copper+, Copper Sulphate and Sulfur. Some of the fungicides, such as the sulfur and copper-based products, can be used for growing organic produce. Lime-sulfur was originally developed in 1851 by Grison who was the head gardener at the vegetable houses in Versailles, France. Fungicide names can be very confusing at first. (page 5) Apples can have dormant oil now, but lime sulfur is pre-pink and pink. Is copper run off the problem or absorbtion through the leaves? Copper fungicides. A specially prepared micronic sulfur suitable for use as a dust or spray. Fungal diseases can be a real problem for gardeners, especially when the weather is warmer and wetter than usual. Do not apply copper under cool, slow-drying conditions. Copper sulfate, which is sometimes referred to as bluestone, was one of the first types of copper used as a fungicide. The fine particle size gives better coverage, adhesion, and disease control. The best time to spay a plant with a copper sulfate fungicide is before leaf out in the spring or after leaf drop in the fall to prevent damaging the leaves. I've not seen any problems with my orchids, from using it. You can see pears can have an application of Lime sulfur with or without dormant oil now. Copper was one of the first elements used as a plant fungicide (the other was Sulfur). Which is better fungicide: copper or sulfur? Using copper fungicides is confusing, but knowing exactly when to use copper fungicide is the key to success. Gardener's Guide to Fungicides This guide tells you all you need to know about fungicides and what diseases they treat. In summarizing available information on the mechanism of the fungicidal action of copper it appears most likely that exudates, such as hydroxy and amino acids, produced from fungus spores react with the “insoluble” copper fungicides to form soluble toxic copper complexes. Copper and Sulfur fungicides are used as protectants and once the plant is infected they are of no use. Sulfur, used as a fungicide and insecticide, can be applied as either a dust or a spray using wettable sulfur. I have read it's a carcinagin so I think I will avoid it. 5H 2 O), the most commonly encountered salt, is bright blue. Copper Copper .