How to prevent cherry blossom stem glue
Physiological flow of glue When the plants are subjected to frost damage, mechanical trauma or improper management of fertilizer and water tree vigor is too weak, resulting in plastic flow.
Pathological fluid is a kind of Ascomycete damage, which is a fungal disease. Ascomy pathogens live on shoots or dead shoots. When conditions are right, spores are produced. The spores are dispersed and related to temperature and rainfall. The host surface needs water. Membrane or relative humidity above 96? Conidia spread by raindrops between plants. Therefore, this disease occurs in the spring and summer, when spores are released more, and the climatic conditions are also suitable for the invasion of pathogens.
The bacteria mainly infects shoots or stems. At the early stage of infection, small blister-shaped swellings appear on the trunks or branches. The lenticels in the middle of the swelling site will flow out of jelly material. At the beginning, it is brownish and transparent, gradually turning into dark brown and showing contamination. shape.
In addition, insects cause fluids, such as hornbills, codling moths, gizardins, etc., which cause erosions or spawning wounds, which can also cause gums to flow.
Control methods 1. Strengthen fertilizer and water management, increase tree vigor, and increase plant resistance to disease. Pay attention to drainage during the rainy season and prevent water accumulation; 2. Prevent and treat pests and diseases in time, such as long-horned beetles and cockroaches and moths; 3. Combine pruning in winter and spring, cut off dead branches, and burn the damaged branches. Elimination of the source of infection; 4. Spring cherry blossoms can be sprayed with 3 to 5 Baume degrees of lime sulfur or 40% of Formami WP to 400 to 500 times. Once a week, they can be sprayed for four weeks. Role; 5. For the trunk or large stems that have been affected by disease, the bark can be scraped off with a knife and the fungicide applied on the wound. In order to inhibit the spread of pathogenic bacteria. 6. Insect damage caused by glue, you can use a knife to dig out the eggs or stem spray insecticide 10% imidacloprid 2000 times and spray fungicide 50% mancozeb 600 times.
Nuts can generally be divided into two types: one is seeds, such as sunflower seeds, pumpkin seeds, peanuts, etc.; the other is tree nuts, such as pistachios, hazelnuts, cashews, walnuts, pine nuts, walnuts, chestnuts, almonds. And the macadamia and pecans that have been very hot in the past two years. These nut foods contain more protein, calcium and a variety of vitamins, which can provide the body with a variety of nutrients needed by the brain and body.
In general, a nut is a closed fruit classification of a nutrient-covered woody or leathery hard shell. The skin is hard and contains one or more seeds. It includes two types of tree nuts and fruit seeds, walnuts, chestnuts, pistachios, almonds, etc., melon seeds, which belong to the fruit seed class.
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