1. Glue Disorder The disease mainly occurs in the trunk and main branches. The diseased part of the disease begins to swell in the early stage of disease. The epidermis is dark brown, and the liquid oozes out. Then it gradually sinks and cracks. It overflows yellowish transparent soft jelly and finally condenses. Hard plastic blocks. Gum disease can be divided into physiological fluid and invasive fluid. Physiological fluids are mainly caused by frost damage, sunburn, or mechanical damage; invasive fluids are caused by fungal or bacterial infections, and most are fungal infections. In the prevention and control, water and fertilizer management should be strengthened to increase tree vigor and improve the disease resistance of the tree. Strengthen overwintering management to prevent freezing damage and avoid mechanical damage. If any occurs, the block can be scraped off with a sterilized blade and smeared on the wound with lime sulfur once every ten days for three or four consecutive applications. 2. Common Pest Injuries The common pests of eucalyptus are: polymorphic miracidia, xx fruit pods, eucalyptus 蚧 蚧, jujube ball 蚧, cinnabar 螨, mulberry 翅. For pupal polymorphic fronds, it can be controlled by spraying 2000 times of 10% imidacloprid wettable granules at the time of germination of young leaves of eucalyptus in early spring, and it can also spray 1.2% bitter nicotine emulsifiable concentrate 1000 times, 3% hypertonicity in its occurrence period. Benzoxazole EC 3000 times or 1.2% HA can be used for prevention and treatment; if there is a 蚜x occurrence, 10% imidacloprid wettable granules can be sprayed at 2000 times to prevent and cure; Spray 3% hypertonic phenoxy-oxo-emulsion 3000 times to kill; if there is a jujube ball harm, you can spray 15% imidacloprid microcapsule suspension 2000 times or 95% Emulsion 400 times liquid for prevention and treatment; For cinnabar cinnamomum, spray 3 to 5 bumeido lime sulfur before germination in early spring to eliminate overwintering carcasses, spraying 1.8% alding EC at 3000 times for control; There are mulberry moths, spraying 500 times Bt emulsion or 20% diflubenzuron suspension 7000 times to control larvae.
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