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In the garden it can happen again and again that plants do not grow as you would like. Either because they are constantly suffering from diseases and pests or because they simply can not cope with the soil or the location. The members of our Facebook community also have to deal with these issues.
In a small survey we wanted to find out which plants our users have the biggest problems with and how they tackle them. One thing has emerged very quickly: The warm and humid weather of the summer of 2017 seems to strongly promote the spread of diseases. Hardly anyone has only one sick plant, but usually several of the most diverse diseases are affected - both useful and ornamental plants. Many a member of our community answered even resigned: "Ask which plants are not affected!" These three diseases and pests are particularly common this year and so our users deal with them.
1st place: star soot
The Sternrußtau belongs to the most widespread Rosenkrankheiten against which hardly a rose is really resistant. So it is not surprising that he was mentioned very often by the members of our community. Thanks to a very rainy summer, almost everyone seems to be struggling with it this year, because the growth of the star-ostrich is so strongly favored by persistent moisture that it can almost be exploded. Ma H., for example, says that in the spring she first had many aphids, before the blackspot and powdery mildew spread over many plants. She plucked and picked up each diseased leaf and then sprayed "Duaxo Universal Mushroom-Free" - with success. However, she is still keeping an eye on her roses in particular. If her fruit trees are already showing little fruit this year, she wants to be able to at least enjoy beautiful rose petals.
Star sooty (photo), powdery mildew and rose rust are the most common rosacea diseases
Also the climbing roses of Stephanie T. are affected by the star soot and the few healthy specimens are - you hardly believe it - nibbled by snails. Her tip: Spread coffee grounds as this seems to help her. Conny H. always had problems with climbing roses on her rosebuds, which were attacked by various diseases. Two robust ADR climbing roses have been growing there since spring - they are healthy and flowering without ceasing.
User Beatrix S. has a special tip for the other community members: she strengthens her roses with ivy tea to prevent illnesses. To do this, pour 5 to 10 ivy leaves with about 1 liter of boiling water and leave to soak for 20 minutes. The cooled mixture then sprayed on their roses for three to three days for 14 days. Before that, she removes all diseased plant parts. As soon as the first shoot is visible in spring, she repeats the cure. As a result, their plants become more resistant and better able to cope with diseases. She has been strengthening her plants with ivy tea for three years and all roses look very healthy. Other users have had good experiences with strengthening Jauchen, for example, nettle or field horsetail.
2nd place: The Boxwood Cinderella
Again and again, we get sad pictures of half-dead box trees, the members of our community send us in the hope that we can give them tips to combat the Buchsbaumzünslers. And even when reading the comments under our survey, it quickly became clear: The fight against the boxwood thinner in 2017 is in the next round. Many have since abandoned the tedious picking up of the pest and removed their boxwood trees. Also the book of Gerti D. suffered under the boxwood man. Two years ago she had sprayed the bush and searched regularly. After her book was attacked two years in a row, she then removed her box hedge and replaced it with yew. The conifers have already grown well and she hopes she will have a beautiful new hedge in two years.
The caterpillars of the boxwood calculator cause considerable damage
Sonja S. has already sprayed her five boxwoods twice this year, unfortunately both times without success. Our reader Hans-Jürgen S. has a good tip for this: he swears by a dark garbage bag as a miracle weapon, which he puts over his box trees in the summer for a day. Due to the high temperatures inside the growers die. The boxwood of Magdalena F. was also attacked by the boxwood thaler. She searched her book for the butterfly caterpillars and cut back the shrubbery. She plans to remove the book in case of another infestation and to try it with hibiscus.
3rd place: mildew
In addition to the star soot, this year there is another rose disease on the rise: powdery mildew. This fungal disease is clearly visible on the white-grayish surface on the upper leaves of the roses. Over time, the leaves turn brown from outside to inside and die off. Once the disease has appeared, affected parts of the plant should be immediately removed and disposed of on the compost. In case of heavy infestation it is advisable to remove the whole plant immediately, before the mildew is transferred to other plants. It is important to know when buying new roses that there are many new varieties that are largely resistant to powdery mildew. That's why you should rely on the ADR predicate, an award for particularly resistant or even resistant varieties.
The powdery mildew is easily identified by the white topping on the top of the leaf
Also in the garden of Friederike S. the powder of powdery mildew has appeared for the first time this year, not only on the roses, but also on the otherwise sober common sunhat (Echinacea purpurea). She has a total of 70 rose bushes, which have lost all their leaves. Now she will pick up all the leaves, so as not to take the spook into the next year. Overall, she has the impression that all the plants in her garden - perennials, bamboos and even such "weeds" as the butterfly lilac - had to really make an effort this year to grow and thrive. An exception were with her the pampas grass and the miscanthus, which have both become gigantic and have formed tons of "pompoms". It reconciles something with the otherwise rather mixed plant summer.