Tawuły are popular deciduous shrubs, usually blooming beautifully and profusely. Sometimes, however, the decorative effect of these shrubs can be destroyed bytawuła diseasesor pests attacking these shrubs. What to do whentawuła does not bloom, turns brown or withers ? Here are the most commonTawula diseases and how to deal with them !
Tawuła diseases can destroy the decorative effect of these beautiful shrubs
Mistakes in the care of the label
Tawuls like sunny positions where they bloom profusely and fertile, well-drained soil. Tawul will not grow well in a very wet substrateDo not forget to cut the tawul correctly, because it ensures a dense habit and abundant flowering. Sometimestawuła does not bloom because it is badly trimmedEarly blooming tawułas (e.g. gray tawuła) are cut after flowering, and those blooming in summer (e.g. Japanese tavula) are cut in early spring.
Weakened by poor care, tawułais more susceptible to diseases or pests. Leaf spots, withering shoots, lack of flowers are common symptoms which can be caused by an infection.
Fungus diseases
Come on, as a ruletawuły are resistant to fungal diseases , frequent rainfall, high air humidity or cutting wounds may promote the occurrence of infection. As with all fungal diseases, preventionand quick action are very important in the case of tawuł diseases. Fungicidal plant protection products should be used twice at intervals of 10-14 days, and the infected shoots should be removed by cutting them off in a place where there is still he althy tissue.
The reason thattawuła does not bloom, turns brown and dries upmay be the blotch of the tawuła leaves. In summer, small round spots appear on the youngest leaves of the tawula, sometimes with a red border. With a large number of spotstawula leaves turn brown, die and witherTo prevent this disease, rake and remove fallen leaves prophylactically, and after noticing symptoms of this disease during the growing season, spray the bush twice with the preparation Topsin M 500 SC.
Another disease of the bushthat often haunts these shrubs is powdery mildew. As a result of the attack of this disease , white irregular spots and a white powdery coating appear on the leaves of the tawulaAt first small spots, with time they enlarge until they cover the entire surface of the leaf blade. Flower buds are also often affected by the disease. Whole shrubs may become deformed, their growth stunted and leaves may fall prematurely. Fighting this disease is the same as with leaf spot disease.
Tawuła pests
Anotherreason why the tawula does not bloom, turns brown and dries upis the feeding of the polypody pest. It is most commonly found on the Japanese tawoule and feeds on the underside of the leaf between the veins, giving the impression of a wrinkled leaf. Strong control inhibits the growth of the tawula, its drying up and weakening of flowering. If we have observedsymptoms of this pest feeding on the sleeve , spray with Karate Zeon 050 CS, and repeat the treatment at the beginning of the growing season to protect the plant.
The same preparation will also be helpful in combating spider mites. Tawuły can attack the spider mite, and the symptoms of its occurrence aremosaic-like spots of yellow or red color on the upper side of the tawuła leaves Pests feed from the underside of the leaf, damaging its tissue and sucking the plant sap.
In order tofight spider mites on the sleeves , apart from spraying spider mites during the growing season, it is also worth spraying preventive oil spraying in the early spring, the purpose of which is to destroy winter spider mite eggs. You can use preparations such as Emulpar 940 EC or Promanal 60 EC. These eco-friendly sprays performed in the early spring avoid or at least reduce the use of insecticides during the growing season.
Tawuł also has aphids. These pests mainly like the van Houtte tavula and the Japanese tavula 'Crisp'.Aphids in large numbers cover the tops of tawula shoots, cover the leaves and shoots with sticky honey dew and inhibit plant growthAfter noticing the pests, spray with aphidicides. In addition to chemical plant agents, natural preparations such as e.g.Agrocover Spray or the previously mentioned Emulpar 940 EC.
MSc Eng. Joanna Białowąs
