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Common Pest and Disease Species Infecting Tulips and Their Control Measures
Tulips originate from the Mediterranean coast and central Asia. Their Chinese names include caoshexiang, honglanhua, mudanbaihe, yanghehua, yangshuixian, and others. They are perennial herbaceous plants of the genus Tulipa in the family Liliaceae. The plant height is 30-50 cm; the bulb is flattened conical with a brown tunic; leaves number 3-5; the flower is solitary at the top of the stem, large, upright, cup-shaped, with the base often dark purple; the capsule bears flat seeds; the natural flowering period is March-May, and the fruit ripening period is April-June. Tulips are famous bulbous flowers, and their brilliantly colorful flower forms and colors are favored by the broad masses of visitors. However
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What to Do When Carnations Get a Viral Disease? Detailed Control Measures
A. Strict quarantine should be carried out when importing carnation seedlings to avoid the spread of virus-carrying plants. B. Large-scale production bases should use shoot-tip virus-free seedlings to establish virus-free mother plant gardens for cutting propagation. C. Remove infected plants as much as possible to reduce sources of infection. During cultivation and management, care should be taken to disinfect and clean tools used for taking cuttings, cutting flowers and pruning, to avoid contact transmission. D. Pay attention to controlling the transmission vector, aphids. Spray 50% menazon wettable powder at 1500 times dilution or 2.5% deltamethrin emulsifiable concentrate at 5000 times dilution to kill aphids. E. Heat treatment
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What are the field management measures for lily cultivation?
1. Intertillage and weeding: In the second year after planting, carry out intertillage and weeding 3 times. The first time is after full sprouting in spring, the second time is before flowering in May, and the third time is after flowering in July. The first intertillage should be shallow, and the second and third should be deep. After the rows close, no more intertillage is done, and large weeds are pulled out by hand. 2. Topdressing: Generally topdress 3 times. The first time is around January, applying 2000 kg of decomposed stable manure, 50 kg of cake fertilizer, and 100 kg of plant ash per mu; the second time is when the seedlings are about 10 cm tall, applying 1500 kg of decomposed human and livestock manure
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Detailed Explanation of Lily Pest and Disease Control Measures and Practical Methods
(1) Rotate crops with a 3-year break. When planting lilies along a slope, plant from the bottom upward to reduce the spread of pathogens. (2) Select bulbs free of disease, mites and mechanical injury as seed bulbs to reduce sources of bacteria and mites. (3) Burn dead branches and fallen leaves in the field and diseased and pest-infested plant residues to reduce sources of pests and diseases. Organic fertilizer should be composted and fermented until fully decomposed before being applied to the lower soil layer. (4) Use deep furrows and high beds, clear the furrows and drain water to control soil moisture content. (5) Soak for disinfection and mite elimination. Before sowing, use a 4000-fold dilution of 20% Saomanjing wettable powder plus a 70% Thiophanate-methyl wettable powder
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What are the control measures for the box tree pyralid (Diaphania perspectalis)?
Boxwood is a major evergreen ornamental plant in gardens. In recent years, careless introduction of plants has allowed the box tree pyralid (Diaphania perspectalis) to damage two small-leaved boxwood species, Buxus sinica and Buxus bodinieri, from south to north. From the larvae feeding on the leaf mesophyll to spinning silk to make nests and binding leaves together, it severely affects boxwood growth and can even kill the affected plants entirely. Morphological characteristics and occurrence pattern: The adult has a white-brown body and white, semi-transparent wings; the front edge of the forewings is brown, the medial cell has a fine white spot and a curved crescent-shaped white spot, and the outer margin of the hindwings has a brown band. The larval head is black-brown, the trunk is dark green,
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Site preparation and planting measures for mixed forests of strip mulberry and black locust in converting farmland back to forest on the plains
Black locust uses pit-shaped site preparation, with a specification of 80 cm by 80 cm by 80 cm, a plant-to-row spacing of 3 m by 5 m, and a planting density of 45 trees per 667 sq m; plant in spring and autumn, apply sufficient base fertilizer before planting, and water after planting; strip mulberry is planted between the black locust, using pit-shaped site preparation, and planted in spring, the rainy season, or autumn.
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What are the common disease control measures for rhododendrons?
The common diseases of rhododendrons and their control measures can be grouped into the following categories: 1. Rhododendron gray mold Symptoms Gray mold occurs on the leaves and flowers of rhododendrons. Freeze damage is often the trigger for leaf infection. In spring, the flowers of rhododendrons grown indoors and outdoors are often infected with gray mold. In the early stage of the disease, necrotic spots appear on the petals, spread quickly, and connect with each other to form large lesions. Under conditions of high humidity, the diseased parts produce a large amount of gray conidial layers, which is how gray mold got its name. Pathogen Botrytis ci
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Causes of Leaf Drop in Bonsai Ficus in Northern Cultivation and Preventive Measures
Ficus (Ficus microcarpa L.) is an evergreen ornamental plant of the Moraceae family, generally grown as bonsai in the north. Its leaves are bright green, its branches and trunk are vigorous and rugged, and its forms are endlessly varied; the coiled and twisting aerial roots in particular give a sense of antiquity, desolation and richness. It is an excellent bonsai plant. However, bonsai ficus grown in the north always drops its leaves, seriously affecting its ornamental effect. The author has investigated this for many years, analyzed the causes, and summarized preventive methods. 1 Causes of leaf drop Leaf drop of bonsai ficus in the north can be divided into two
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Production and Management Measures for Cut Rose in Different Seasons
(1) Winter: mainly sunny days, strong light, and a large temperature difference between day and night. A short period of extreme low temperature occurs at the end of December. In southern Jiangxi, the large temperature difference between day and night is very beneficial to the accumulation of dry matter in cut roses, and the cut roses have large heads, many petals, and bright colors. However, in winter the day-night temperature difference inside the greenhouse often reaches above 20°C, and an excessively large day-night temperature difference can cause the petal edges of many cut rose varieties to turn black and the flowers to become deformed. The minimum night temperature required for cut rose growth is above 8°C; too low a night temperature is unfavorable to cut rose growth, mainly affecting sprouting and shoot
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Detailed Explanation of Phalaenopsis Cultivation Measures and Technical Key Points
Phalaenopsis is a premium flower deeply loved by consumers. It has beautiful flower shapes, bright colors, an elegant bearing, and a long ornamental period. Its cultivation and management requirements are not high. For home cultivation, as long as it is managed properly, it can still bloom the next year, and the flowering period can be regulated to the day you need. Phalaenopsis is native to the region between 23 degrees south latitude and 23 degrees north latitude. More than half of Guangdong Province lies within this range, so Guangdong has the climate environment for cultivating Phalaenopsis, with fast growth and a short production cycle. For most varieties, after leaving the flask, 16 months of cultivation
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