How to deal with cherry blossom root nodule disease
When planting cherry seedlings last spring, the author found nodules in the roots of individual plants. the common symptoms were different shapes, sizes, brown to dark brown colors, and cracked epidermis. It occurs on the ground or near the root neck of the ground, and at the junction of the rootstock and the scion. The damaged plants showed poor growth and dwarfing. After identification and diagnosis, the author thinks that this is nodule cancer, and the seedlings should be treated before planting.
1. Soak the roots of suspicious seedlings with 1% copper sulfate solution for 5 minutes, rinse and plant.
2. The plant with root cancer is removed and the wound is smeared with 0.1% mercury solution before planting.
3. When planting, ferrous sulfate is used to mix the soil to change the acidity of the soil.
4. According to the law of its disease, mechanical damage can be avoided when grafting, planing and transporting seedlings, and the chance of invasion can be reduced by pathogens. When planting and breeding seedlings, they are not planted together or close to rose, peach, citrus and other flowers and trees, because the pathogen can infect these flowers and trees at the same time.
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How to prevent the harm of red spiders to cherry blossoms?
How to prevent the harm of red spiders to cherry blossoms? Most of the red spiders that harm cherry blossoms are mountain plant leaf mites, also known as mountain plant red spiders. Red spiders mainly harm the leaves of cherry blossoms. In early spring, the adults and nymphs clustered on the back of the leaves, and their mouthparts were pierced into the leaf tissue to suck the juice, so that the affected leaves showed green loss spots, and when the leaves were severe, they scorched and fell off early. The female adult of the red spider planted in the mountain is 0.5 mm long and oval, with 26 bristles on the back of the body. The body of the worm is red, which can be divided into winter and summer types: bright red and silk luster in winter; red when molting in summer, and after feeding
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Drug effects of Japanese cherry blossoms
[medicine name]: Japanese cherry blossom [source]: the bark of Japanese cherry blossom, a dicotyledonous plant of Rosaceae. [efficacy]: relieving lung and relieving cough. [indications]: for cough and fever. [classics of nature and taste]: Xin, Ping. Lung meridian. [usage]: oral administration: fried soup, 3-9 grams. [distribution of animal and plant resources]: originally from Japan, it is now cultivated all over China. [Latin name]: Japanese cherry blossom PrunusyedoensisMatsum. [textual research]:
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