Thujas are beautiful and popular shrubs that decorate almost every garden. They not only delight with their green branches all year round, but also create a natural fence. With their help, you will gain some privacy on your plot and hide from the curious eyes of your neighbors. However, it sometimes happens that they suddenly start to turn brown. What could be the reason for this?
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Thuja suddenly started to turn brown and wither? It could be a licinek
The Licinek is a small butterfly that has been present in Poland relatively recently. He particularly likes yews and junipers. Its voracious caterpillars destroy plants at an alarming rate. Damaged twigs first turn bright, then turn brown until they dry out. Since the damage is not very great at first, it is difficult to notice their presence in advance. All the more so because the browning of conifers and their shedding of needles in autumn is a completely natural phenomenon. What is causing concern is the increasingly widespread destruction.
What does a licinek look like? In Poland we can find two varieties
We can find two varieties of licinka in our garden. The first one is licinek tujowiaceae, which appeared in 2004. Adult insects resemble tiny butterflies with light gray wings marked with brown and red spots. In addition, they have characteristic, protruding white hairs on their heads. The caterpillars are approximately 6 mm long. They have black heads and brown-green bodies. The second species is the juniper beetle, which has been destroying junipers in Europe for 40 years.. The butterfly is slightly larger than the butterfly. Its front wings are brown and green, and its rear wings are silver with fringes. The caterpillar, in turn, looks almost identical, only slightly greener.
How to get rid of lice? Start with prevention
Even before the lilac moth attacks thujas or other conifers, it is worth implementing measures to prevent it from doing so. First of all, in autumn and spring, make sure to shake off all dried needles from the plants, then collect them and throw them away. This is because the lilac overwinters in the leaf litter or shoots under the conifers. Because it is a relatively new pest, you will not find a ready-made product in the store to help fight it. However, a preparation against decorative butterflies or one against aphids will work. Both of them will effectively make it more difficult for the lilac to continue feeding. When is the best time to spray? In the case of the arborvitae – at the turn of June and July, and in the case of the juniperwort – at the end of May.
Source: Gazeta
Bruce is a talented author and journalist with a passion for entertainment . He currently works as a writer at the 247 News Agency, where he has established himself as a respected voice in the industry.
