Garden lilies, like many other plants, can be infested with diseases and pests. Both lily bulbs, their leaves and flowers are damaged. These plants can suffer from fungal diseases, viruses, and from pests - aphids and lilac moth. See how to recognize and combat diseases and pests of garden lilies.
Lily pests - onion pests
Diseases of garden lilies
The most commonlily diseasesare gray mold and viral diseases.
Gray mold causes dark green spots on lily leaves during the growing season, which turn brown over time, and a gray, dusty coating on their surface, the leaves may dry, but do not fall off, brown discoloration may be visible during the storage of bulbs and the rotting process takes place.The cause is the fungus Botrytis elliptica, its development is favored by moisture and too dense planting of plants. Spores spread with rain and wind. To avoid thislily diseaseplant the bulbs in a well-drained soil, not too densely, and season the bulbs before planting. In the event of gray mold symptoms occurring during the growing season, the plants are sprayed with the biopreparation Biosept 33 SL or the fungicide Sadoplon 75 WP.
Lily viral diseases are also commonWhen infected by viruses, leaves are twisted and spotted with light and dark green streaks. The flowers are small and the plant's growth is stunted. Various viruses can be the cause, often transmitted by aphids. The hosts may be L. lancifolium lilies and their hybrids, although they themselves do not show symptoms of infection. Unfortunately, there are no chemicals to fightlily viral diseases , infected plants should be removed and preferably burned.L. lancifolium lilies and their hybrids should be planted away from other lilies. If aphids appear, spray with such preparations as ABC on AL aphids (a convenient preparation for amateur spreading) or Decis 2.5 EC.
There are alsolily diseaseswith physiological causes, resulting from improper plant care. Due to errors in lily cultivation,fading of lily leavesThis manifests itself in the fact that along the edges of the leaves, mainly the older ones, brown, semicircular or sickle discoloration is visible, and the tips of the leaves turn brown. The cause of this lily disease is too acidic soil or large fluctuations in temperature. To prevent symptoms of this disease, lime should be added to the soil to reduce acidification. Avoid using acidifying fertilizers in the future. Lilies like acidic soil, but acidification should not be overdone.
Pests of garden lilies
Most popularlily pestsare the aforementioned aphids and the lilac chrysanthemum.Irregular gouged holes can be seen in the leaves and flower buds of lilies from early spring to autumn. The cause of these bites is the feeding of the larvae and insects of adult lilacs, a brick-red beetle up to 8 mm in length. The larvae are orange in color and covered with sticky mucus. Chanterelle colloquially is very often referred to simply as red worms on lilies.
Fighting the chanterelle may turn out to be difficultdue to the long period of laying and hatching (from spring to mid-summer ). In amateur cultivation, when the number of plants is small and the pest is not very numerous, we limit ourselves to manually catching beetles. When the pest is very numerous, spraying with insecticides is carried out, e.g. Mospilan 20 SP.
