Written by Maggie
Nov 19 2020
In the early stages when Rosa Multiflora with anthrax, we can cut off diseased part, necessary for the proper processing in soil, with corresponding prevention and control of midlothian solution spraying. When caused powdery mildew and black rot, we often should strengthen the liquidity of the air, control sewage sludge management, and be serious when using daconil solution spraying prevention.
The dangers of Rosa Multiflora is common disease anthrax, will gradually dry, at the time of onset of blade blade will appear a lot of brown spots, later will be gradually eroded blade, cause plant wither. But in the early stages of the disease, cut off, strain in soil and root on basin after disinfection, with just the right amount of mildothane solution spraying.
Powdery mildew is Rosa Multiflora one of common diseases, mainly in violations of the leaf, petiole and tender tip part, blade also appears irregular white powdery spots, gradually lead to leaf dry fall off, and can be clipped key position at the time of onset, pay attention to ventilation, to control water in autumn and winter season, and reduce nitrogen fertilizer, using the corresponding prevention and control of daconil solution spray.
In high temperature and high humidity environment, Rosa Multiflora is easy to cause the harm of melasma in the blade will appear many spots, eventually expand into irregular black patches. But at the time of onset of the disease leaves cut, the remaining branches disinfected, put plants in ventilated place, decrease the Times of water spray once every half a month, carbendazim solution which is Rosa Multiflora pest and control of one of the methods.
Beetle is one of the common insect pests of Rosa Multiflora, mainly affecting roots, leaves, flower buds and other parts. Once the disease occurs, the number of flowering will be seriously affected. Indoor air circulation can be enhanced at the early stage of the disease, the damaged flowers and leaves can be cut off in time, and the delicate deltamethrin solution can be sprayed once a month for prevention and control.