How to control scented osmanthus scale insects
Often adults and larvae live on sweet-scented osmanthus branches to absorb juice, resulting in branches and leaves withering, serious death of the whole plant, often secreting a large number of honeydew, leading to the occurrence of soot bacteria. The leaves and stems are covered with black dirt stickiness, which hinders the light and function and affects the ornamental. There are mainly cotton blowing scale and mulberry white scale. Prevention and control method: it is strictly forbidden to use the vaccine of the substitute worm. If you find individual branches and leaves, cut them off immediately and burn them in concentration. Do not throw them at random. Potted sweet-scented osmanthus can be brushed off with a toothbrush to protect natural enemies, Australia, Dahong, Xiaohong, Red Ring, Liujue ladybug. Spray 40% omethoate to water 1 200-1 300 times, 80% dichlorvos emulsion to water 1 000-1 300 times, spray once in 7-10 days, 2-3 times in a row. Click to get more sweet-scented osmanthus planting techniques
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How to control sweet-scented osmanthus whitefly
The adult and larval needles are inserted from the back of the leaves to absorb the leaf juice of flowers. Make leaves withered and yellow and fall off, adults can secrete "honeydew", nourish coal fouling bacteria, cause soot disease, pollute leaves and branches, destroy photosynthesis and respiration, make flowers grow badly, cause leaves to wither and yellow, tree potential to weaken or the whole plant to die.
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How to preserve Osmanthus fragrans in buildings
In winter, sweet-scented osmanthus grows slowly and is in a relatively dormant period, but its internal tissue is growing vigorously, mainly in flower bud differentiation, so as to gestate buds and blossom after the temperature rises in spring, so the focus of winter conservation is to protect plants. to ensure the smooth progress of flower bud differentiation, specific maintenance techniques are as follows: 1.
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