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In the garden and in the yard again and again unpleasant things appear that you would prefer not to have and which you then fight, such as lawn diseases, pests, wild animals that destroy the garden or even diseases.
One of those unpleasant things is the gray horse. This is a noble rot fungus, which is also called gray mold and grape grape in addition to many other plants. The local gardeners also often find him on the strawberries. The damage caused by the gray horse is enormous, the crops are extremely weakened and yields are significantly reduced.
When must the gray horse in the garden be fought?
The gray mold blight is caused by the mold fungus Botrytis cinerea, a fungus that has developed a wide food supply: It can feed as the only parasite of the genus of more than 235 host plants. When the fungus covers a plant with its dusty mushroom turf, it stimulates apoptosis in the cells of the affected parts of the plant. This is a kind of suicide program for the cells that causes the metabolism of a cell to react in a way that causes the cell to fail. The plant tissue decays progressively and begins to rot.
The best conditions for the fungus are at temperatures of 22 to 25 degrees, but it also likes heat up to 35 degrees, especially if it is nice and humid in the area. In summer, therefore, high levels of Botrytis spores are present in the air, sometimes 70% of the airborne mold spores are Botrytis spores. Therefore, vegetables and fruits are very often attacked in the summer of Botrytis, especially like this mold all soft vegetables and fruits with high water content. So besides the already mentioned grapes and strawberries also cucumbers and tomatoes, cabbage and lettuce and all soft and fleshy stems, leaves and flowers.
Once landed on the plant, the mold grows rapidly in good conditions, it can in a few days z. B. cover a whole fruit. If he has killed or fought the infested plant, Mycele can survive at the infestation site, also called sclerotia, an almost indestructible permanent form of the fungus. The produce then new spores, as soon as the temperatures are a little springlike, which then damage the plants planted in this area and continue to move carried by water and wind... Therefore, the gray horse should be taken quite seriously as a plant pest, he can do a lot of damage, especially in monocultures Serve.
Prevention of gray mold
Your garden soil and plants will be much better able to defend against gray mold (and other fungi) infestation if you care for a natural and healthy soil life, have no unprotected open garden soil in your garden and plant your plants in mixed cultures. Garlic z. For example, botrytis spores do not like at all, and many soil organisms, such as springtails, are even more likely to multiply into small civil protection associations if too many fungal spores occur in the vicinity.
First aid against Botrytis
If you recognize the fungal infection very early, you may still be able to avoid the complete infection of the plant and the soil, because the death of cells by apoptosis only ever damages the affected cell, the neighboring tissue remains completely. But then you would have to act very fast to prevent the fungus from spreading. You should then the
remove affected parts, dead plant parts, mold-coated leaves and stems, fruits and buds. If you catch all infected plant parts, your plant will continue to grow normally and healthy. It is best to immediately place the removed parts of the plant carefully in a plastic bag, to whirl through the air, if possible without spores. Either this (tight) bag then ends up well sealed on the garbage or you burn the leftovers, on the compost they must not get under any circumstances.
In the case of gray mold attack on houseplants, a quarantine of the plants which have just been freed manually from the fungus can be helpful, if necessary also by a fleece, in order to keep possibly emerging spores on these plants. Even a temporary reduction in air humidity could kill individual residual pores.
Pesticides against gray mold
If these control measures were unsuccessful, there are also a number of gray pesticides approved for use in home and garden:
These agents include either cyprodinil combined with fludioxonil, systematic fungicides such as the "Switch" agent and the strawberry sprayer "Botrysan", or fenhexamid, a non-toxic but water-critical fungicide. Fenhexamid is included in "Teldor" and "Bayer garden fruit-fungus-free Teldor".
These products are authorized for specific uses and for specific uses and amounts for different fruit and ornamental plants, and if these specific instructions and prescribed waiting times are observed, the consumption of the fruits should be harmless to the treated plants.
How do you recognize the gray horse?
The signs of the infestation are very different. They begin with rotting tubers, go over a visible gray mushroom lawn and faulige flower soils and end with mouse-gray-looking fruits up to speckled blooms.
Since you do not want to accept these damages, you should do something about it. First, the first cause of mold must be combated at all, namely the moisture. All plant parts must be dried and irrigation should be discontinued.
Furthermore, it is necessary to remove the affected parts of the plant, because then inhibits further spread. In trees, for example, you should remove leaves and some branches, so that the air can circulate better. Also moss or weeds in the environment of the damaged plants should be removed, so that no more water storage is available.
After that, it's important that crops get their nutrients and fertilizers just as they need them. An over-fertilization is to be avoided. Also humus soil and exact irrigation are important.
Of course, the gardening trade also holds preparations that disperse the gray horse. Here you should make sure that you do not harm the environment with these funds, but helps the plants. It is best to ask a gardener or a specialist in the garden trade. A very precise dosage of these agents should be taken to avoid reversing the effects of mold and moisture.
If you have freed his flowers or crops from gray mold, then you should continue to pay attention that not too much moisture occurs, because just moisture favors the development of molds. If you give your plants exactly what they need, they will enjoy them a lot. Even if then diseases occur, you have this quickly back under control.