Annuals, perennials, bulbs and perennials have the virtue that they grow throughout the year, although they are not exempt from suffering disorders typical of the habitat in which they live.
Among the latests Moravia's compositions plagues and diseases more common are worms, which can be of various types and affect plants in different ways. It is very difficult to protect plants from these attackers because many of these worms live on earth and that's how they affect the roots, eating them. This happens with white worms (Anoxia villosa, Melolontha melolontha) and the wireworms (Agriotes lineatus). They generally affect ornamental plants and also gnaw on tubers and bulbs.
During the spring and fall more attacks occur while the more extreme temperatures of winter and summer stop them. How to notice its presence? In addition, by investigating the earth and observing if there are worms in the soil and between the roots it is also possible to discover them from the effects on the plants, whose leaves turn yellow until they wilt.
Another very common worm is gray worm (Agrotis segetum, Noctua pronuba) which, unlike the others, attacks the base of plant stems and this is how they dry. In this case, it is more difficult to detect them since their attacks are during the night while during the day they remain hidden on the ground.
If you discover the presence of white and wire worms, you can use an insecticide on the soil with several applications. You should choose those that have a component called Chlorpyrifos. In the case of gray worms, you can use a product with the same component or apply one based on pyrethrins. It is recommended to apply the product in the afternoon and repeat it every 15 days.
More information - Most common pests and diseases of plants