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Give it a little sunshine and it blooms gloriously, and once it flowers, the whole balcony is covered in blooms
Once it blooms, the whole balcony is glorious; give it a little sunshine and it blooms gloriously
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Thumb-sized radishes, stir-fried stems and leaves and all, make the whole family's dinner table fragrant
Thumb-sized "radishes," with leaves and stems on top, stir-fried and eaten, make the whole family's dinner table fragrant!
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How to prevent and control brown spot and shot hole disease in cherry blossoms
[Distribution] Cherry blossom brown spot and shot hole disease is an important disease of cherry blossom leaves and occurs in cherry blossom growing areas throughout China. [Symptoms] It mainly affects mature leaves and also affects young twigs. Infected leaves first show pinhead-sized purplish-brown dots, which soon enlarge into circular to nearly circular spots, 1-4 mm, brown in the center, slightly with concentric rings, with purple or reddish-brown edges, and grayish-brown fuzzy dots appear on the lesions; later, an abscission layer forms around the lesions, brown mold-like growth appears on both sides of the diseased leaves, and the center of the lesion dries up and falls off, forming round small holes and producing shot hole spots,
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Occurrence Patterns and Control Methods of Cherry Brown Spot Shot Hole Disease
Symptoms: Small brown, grayish-brown, or purplish-brown spots initially appear on the leaves, gradually forming circular lesions that are non-water-soaked and opaque, with no yellow-green halo around the lesions, 2-4 in diameter, with clear boundaries and a purplish-brown outer margin. In the later stage, the center turns white or brown, slightly zonate, and the lesions die and fall off, forming irregular shot holes. 2. Occurrence patterns: The pathogen overwinters on fallen leaves and spreads by wind and rain in the following spring. The disease begins in June, with the peak period from August to September. Heavy rainfall promotes disease occurrence and epidemic, and weakened tree vigor leads to severe disease. 3. Control methods:
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What are the symptoms of cherry brown spot shot hole disease?
Symptoms of cherry brown spot shot hole disease: This disease occurs on leaves, new shoots and fruit. But it mainly damages leaves, producing circular or nearly circular spots on both sides of the leaves, about 1 to 4 mm in diameter, with clear edges and slight concentric rings; the outer ring is sometimes purple or reddish brown, and the center is grayish white or brown with faint concentric rings. In the later stage, grayish brown mold-like material, namely the conidiomata, occasionally appears on both sides of the spots, more abundantly on the underside of the leaves. The spots often dry up and fall off, forming shot holes, and the holes at the edges of these spots are neat. Leaves with many shot holes drop early, and the spots on new shoots are purplish brown, with grayish brown mold-like material also produced on the spots.
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How to Effectively Prevent and Control Cherry Blossom Brown Spot Shot Hole Disease
I. Symptoms: Shot hole disease can be divided into fungal and bacterial types. Cherry blossom brown spot shot hole disease is caused by fungi. It mainly damages leaves and also infects new shoots. It usually starts from the lower part of the canopy and gradually spreads upward. In the early stage of the disease, needle-tip-sized purplish-brown small spots are scattered on the upper side of the leaves, later expanding into round or nearly round lesions 3-5 mm in diameter. The edges of the brown spots are purplish-brown, and grayish-brown mold spots appear on the lesions in the later stage. An abscission layer forms at the edge of the spot, and the lesion dries up and falls off, forming shot holes. II. Disease Pattern: The pathogen of cherry blossom brown spot shot hole disease overwinters in diseased leaves or shoot parts
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How to prevent and control bacterial shot hole disease and brown spot shot hole disease on cherry blossom leaves?
How to prevent and control bacterial shot hole disease and brown spot shot hole disease on cherry blossom leaves? Small shot holes often appear on cherry blossom leaves, and in severe cases they cause the leaves to turn yellow or even drop. This is caused by bacterial shot hole disease and brown spot shot hole disease of cherry blossoms. (1) Bacterial shot hole disease of cherry blossoms: It mainly harms cherry blossom leaves. In the early stage of the diseased leaves, light brown water-soaked small spots appear, which gradually form nearly round brown or purplish-brown lesions surrounded by light yellow halos. In the later stage, the lesions dry up and fall off, forming shot holes. The pathogen of bacterial shot hole disease of cherry blossoms is a species of bacterium in the genus Xanthomonas.
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How to Prevent and Treat Cherry Leaf Spot Shot Hole Disease
How do you prevent and treat cherry leaf spot shot hole disease? Please explain the methods. Introduction to cherry leaf spot shot hole disease: 1. Symptoms. Shot hole disease can be divided into types caused by fungi and by bacteria. Cherry leaf spot shot hole disease is caused by a fungus. It mainly damages leaves and also infects new shoots. It usually starts from the lower part of the canopy and gradually spreads upward. Onset...
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