Anthracnose is a dangerous disease
Anthracnosis is a dangerous plant disease. Its imperfect mushrooms Kabatiella, Colletotrichum, Gloeosporium cause it. These mushrooms can pretty much spoil crops such as watermelons, pumpkins, legumes, grapes, zucchini, melons, cucumbers, and even citrus fruits. In addition, anthracnose affects walnuts, almonds, dear and close berry bushes – currants, raspberries and gooseberries. This problem is a big topic that many scientists are working on, but we will try to tell you as short and interesting as possible how anthracnose (copperfish) manifests itself in a particular culture, how to deal with it, or, perhaps, to manage one only prevention. So, anthracnose …
Description of Anthracnose
Both a person of various kinds of diseases, and plant organisms are usually affected when they have weakened immunity, that is, there is no protection. In this situation, this disease can get into a weak plant through wounds or surface cracks, and it can also be transmitted through seed material obtained from already infected plants or from a part of dead plants. Anthracnose spores are easily transmitted by wind at decent distances, can be carried by insects, water, that is, drops of rain, dew or irrigation moisture. The disease develops most actively, and it appears most often precisely when increased humidity of air or soil is observed.
Signs of Anthracnose
Anthracnose usually begins with a leaf lesion: spots are formed on it, usually of a reddish-brownish color with a border that, as usual, differs in darker color, may be slightly yellow or darker. Over time, in general, unremarkable spots become more and more, growing so much that they literally connect with each other.
Further, sometimes simultaneously observed symptoms of anthracnose and on the branches, as well as on the shoots. Typically, these are literally depressed areas through which nutrients are either delayed or not passed at all. Most often, these areas have the appearance of light brown spots of oblong shape, which become larger and larger every day, deeper, darker, and at the final stage, a brownish or dark purple rim forms around these sunken spots.
If the weather is dry and rather warm, then all the places affected by anthracnose are usually covered with noticeable cracks, but if it rains and the air is literally saturated with moisture, then the affected stems and shoots begin to actively collapse, they literally rot, break at the slightest touch or a gust of wind.
If the disease is ignored, the leaf will turn brown, dry out, and then literally the entire aboveground part of the plant will die. As we already mentioned, anthracnose most actively develops in conditions of high or excessive humidity. Here is the ideal combination for the development of anthracnose: air temperature +23 degrees, humidity about 87-88%, there is little potassium, phosphorus in the soil and a high acid content – under such conditions, plants are simply doomed to get anthracnose. We will treat the copperfish.
How to deal with anthracnose?
So, not everything is so bad, and, fortunately, a lot is treated. We know that the nature of anthracnose is fungal, therefore, it is possible to fight it with the help of antifungal drugs (fungicides). Drugs change from year to year, a number of drugs are banned, but we will give examples of the most effective anti-anthracnose drugs: Kuproksat, Oksikhom (quite safe, based on copper, but may not help), Acrobat MC, copper chloride itself, Ridomil Gold, Previkur, Coming soon, Fundazole.
Do not hope that these drugs are omnipotent and will destroy anthracnose in just one treatment, it will be good if they can help at all: usually it takes two or three treatments with an interval of one week. By the way, it is quite acceptable to change the preparations, not to process the same and pay attention to precipitation outside the window. So, if after the treatment it rained, then all the work, obviously, will be in vain.
To inhibit the spread of infection, microbiological preparations, such as Gamair and Fitosporin-M, are more environmentally friendly.