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Symptoms and Control Methods of Bacterial Leaf Spot in Lilies
Bacterial leaf spot is an important disease of lilies, occurring and distributed in certain regions, and can develop both under protected cultivation and in open fields. Typically 5%-10% of plants are affected, impacting yield and quality to some extent. In severely affected plots, the field incidence rate can reach over 20%, significantly affecting lily production. [Symptoms] This disease can affect all parts of the lily, with symptoms mostly appearing on above-ground parts. Initially, densely packed water-soaked greenish-brown nearly oval small spots appear on the leaves, which later develop into nearly spindle-shaped yellowish-brown to dark brown necrotic lesions, slightly sunken, with water-soaked edges
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Soil Treatment Methods and Key Technical Points for Lily Planting
(1) After the previous crop is harvested, plow and sun-dry the soil immediately to achieve soil disinfection and increase fertility. (2) Apply sufficient base fertilizer, mainly organic fertilizer (cow and horse manure, barnyard manure, chicken manure, etc.); fully decomposed cake fertilizer may also be applied, and after application, thoroughly turn and mix it evenly. (3) Dig drainage ditches and build raised beds. The bed height is generally 20-30 cm, and the width is about 1.5-2.0 m. The drainage ditches are 0.3-0.5 m wide, and the bed surface is shaped like a turtle shell, low on both sides and high in the middle. The drainage ditches must all connect with one another, so that after heavy rain
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How to prevent and control lily anthracnose? These methods you need to master
Symptoms: Leaves develop round, pale yellow spots, with dark brown margins. On petals the spots are round and flax-colored. They occur mainly on the outer surface of the upper half of the scales, and also on the inner surface. Initially irregular, light brown spots appear, later becoming light blackish brown and slightly sunken, and finally the diseased area becomes almost black, with the tissue shriveling and dry-rotting. The spots can extend several layers deep into the scales, but the outermost scales are affected most severely. Flower buds on diseased bulbs abort, turning brown to black, or large numbers of small water-soaked round spots appear on the flowers, merging with each other into irregular brown patches
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What are the control methods for lily anthracnose?
Lily anthracnose harms the leaves, stems, and flowers of the plant, causing premature leaf drop, severely affecting the plant's growth and development, and reducing its ornamental value. Symptoms: In the early stage of the disease, oval lesions appear on infected leaves, with a pale yellow center, purple-brown or dark brown edges, and a slightly sunken center. Lesions on petals are light brown and become thinner. Infected flower stalks turn black. Infected bulbs generally develop the disease on the outer scales, and sometimes also on the inner scales. In the early stage, light brown, irregular spots appear on the scales, after which the lesions
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Lily Harvesting and Seed Saving Methods and Technical Key Points
1. Timely harvesting (1) For vegetable edible lilies, early harvesting can be done from the Summer Solstice to before Minor Heat, when the lower 1/3 of the lily leaves turn yellow, the bulbs are near their maximum size, and the sugar content of the scales reaches its peak. To fetch a high price, "green-stalk lilies" can be harvested early from late June to early July for use as a vegetable. Edible lily bulbs, because of their high water content and high monosaccharide content, are not suitable for seed saving or storage; when used to process dried lilies, the finished product rate is not high. (2) For medicinal and processing lilies, yellow harvesting is suitable around Major Heat, when 2/3 of the lily leaves turn
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Common pest and disease control methods for lilies, explained in one article
Lilies originated in China. They are distributed in the southeast and southwest, as well as Henan, Hebei, Shaanxi and Gansu, where wild and cultivated plants grow in various places, mainly used as cut flowers and for garden displays as potted ornamentals. The bulbs are used for food and medicine, the fresh flowers contain aromatic oil used as a fragrance, and the fruit is eaten. It is a cold-hardy, autumn-planted scaly bulbous herbaceous flower. There are many cultivated varieties, and besides white, the flowers also come in yellow, red, light red, variegated and other colors. 1. In the middle and late growth stages, the bulb and the root-growing part of the stem are prone to root rot, showing bright dark-brown decay spots; at the base of the plant stem, base rot easily occurs, causing the leaves to droop and turn yellow; on the leaves
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Detailed Explanation of Cut Lily Cultivation Techniques and Management Methods
(1) Land preparation: Choose loose, fertile loam soil with good drainage. During land preparation, broadcast fully decomposed organic fertilizer at 5 cubic meters per mu, and deep plow 30-35 cm. Then make beds at a width of 110-120 cm with 50 cm walkways, then broadcast 10-15 kg of superphosphate, 4-6 kg of potassium sulfate and 0.8-1.0 kg of quintozene per 100 sq m of bed surface, then dig again 20-30 cm deep, so that the soil becomes loose, crumbly, level, soft and fertile. Water thoroughly once 3 days before planting. In plots where other bulb flowers have been grown,
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What are the methods for storing and preserving cut lily flowers?
After cut flowers are separated from the mother plant, life activities such as transpiration and respiration of the leaves and stems continue, so water in the plant is continuously lost, and organic matter is continuously decomposed and reduced. If water and nutrients cannot be replenished in time and the rate of water loss cannot be slowed down, the flowers will wither within a short time, reducing or losing the commercial value of the cut flowers. Therefore, the storage and preservation of fresh cut flowers is very important, and generally includes three aspects, namely pretreatment, storage, and post-sale vase placement, forcing open, and preservation. ① Pretreatment: After harvesting, cut flowers need to be pretreated immediately, main
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Cultivation Techniques and Management Methods for Cut Lily Flowers
I. Land Preparation Select loose, fertile loam soil with good drainage. During land preparation, broadcast fully decomposed organic fertilizer at 5 cubic meters per mu, and plow deeply to 30-35 cm. Then make beds at a width of 110-120 cm with 50 cm walkways. For every 100 sq m of bed surface, broadcast 10-15 kg of calcium superphosphate, 4-6 kg of potassium sulfate, and 0.8-1.0 kg of quintozene, then dig again to 20-30 cm so that the soil becomes loose, crumbly, level, soft, and fertile. Water thoroughly once 3 days before planting. II. Bulb Treatment Bulbs
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Harvesting, Grading, and Packaging Methods for Cut Lilies
(1) Harvest time - Cut flowers when the first flower bud at the base has fully swollen and colored (the true petal color is already visible). If a single flower stem has more than 10 buds, harvesting must wait until 3 buds have colored. (2) Harvesting method - Cut with a sharp knife 15 cm above the ground (about 5-6 leaves). If the flowers cannot be graded and bunched immediately after harvest, they must be placed in clean water and refrigerated within 30 minutes (to cool them and replenish water). (3) Grading and bunching - According to stem
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