Viburnum macrocephalum Pest and Disease Control Methods and Technical Key Points

1. Peak Growing Season

Although Viburnum macrocephalum is not particular about its growing environment, this does not mean its growth rate stays on a straight line. Like all flowers, Viburnum macrocephalum actually only grows especially fast at certain times. But while we rejoice in its growth, we must not forget that pests and diseases are actually the most dangerous organisms at this time. If we regularly apply fertilizer but the amount each time is small, and the leaves still turn yellow, then we should understand that it is pests and diseases that are preventing the leaves from getting nutrients. At this point we should take measures to treat the pests and diseases. Generally, we choose ferrous sulfate solution. Spraying this solution onto the leaves can effectively kill the nasty pests and diseases. However, the ratio of the solution must be paid close attention to, as too much or too little is not good, so everyone must be clear that we need to use a one-thousandth solution.

2. Plum Rain Season

In fact, Viburnum macrocephalum itself is very susceptible to insect damage at that time, because of one of its own very good characteristics, which is that its leaves actually have a great many hairs, so pests and diseases cannot harm its roots. But despite having a strong defensive function, its lower epidermis is its weak point. The degree of cutinization here is not high, so some pests and diseases take advantage of this characteristic. They can secrete certain substances, and these substances happen to be able to dissolve this thin layer of cuticle, thus providing a considerable possibility for pest and disease invasion. This generally happens during the plum rain season, so as soon as the plum rain season arrives we must pay attention and take good measures to protect Viburnum macrocephalum. Our measure is generally to spray pesticide. This pesticide is a commonly used insecticidal substance, so there is no need to worry that it will be hard to buy. Its name is Bordeaux mixture.