The most common pests of sweet-scented osmanthus are sucking leafhoppers, cockroaches, wax cockles, and shield bugs; the main diseases are fungal diseases caused by sucking pests, such as coal pollution. To prevent and treat osmanthus diseases and insect pests, we should fully implement the two basic principles of “prevention first†and “comprehensive prevention and control†and the five major technical prevention and control measures that are complementary to it. It is described below:
First, the principle of prevention
1. Do a good job of planting and cultivating Osmanthus fragrans to maintain its healthy growth and enhance its immunity and resistance.
2. Improve the environmental sanitation conditions in the planting and potting sites, so that the osmanthus pests and diseases do not have room for space and activities.
3. Do a good job in predicting and forecasting Osmanthus diseases and insect pests. Pests and diseases in the initial stage (ie, after the discovery of the disease center), pests in the young stage (that is, before the 3rd instar), we must promptly prevent and control, and strive to prevent the occurrence or occurrence of pests and diseases.
Second, the principle of comprehensive prevention Integrated control is not dependent on individual control technology, but the integrated use of manual operations, garden management, physical methods, biotechnology and chemical pesticides and other five major technical means, comprehensive prevention and treatment of sweet-scented osmanthus pests and diseases.
1. Manual operation (1) "Cut". By pruning to improve the air and light conditions of Osmanthus fragrans plants, not only can promote its robust growth, but also reduce the incidence of pests and diseases.
(2) "scrape." With a scraper knife, the scraped hides and lesions in the osmanthus pods and skins were scraped off.
(3) "sweep." The twigs around the osmanthus fragrans plants are periodically removed and burned or used as manure.
(4) "Turn over." In the early winter, the soil of the garden or the seedlings was ploughed, which destroyed the living environment of the pests and caused them to be exposed to surface death.
(5) "Change." In early spring, potted osmanthus can be changed in pots and soil, some of the soil can be shaken off, and clean soil can be replaced to avoid the outbreak of pests and diseases hidden in pots and soils.
(6) "Sun". The replaced potted soil can be exposed on a sunny day and exposed on the concrete floor to eliminate the pests and diseases, and then mix and decompose the cooked manure to make it available for subsequent use.
(7) "Coating." Brushing lime mud on the sweet-scented osmanthus branches can prevent the stem-feeding pests from entering the eggs during the summer and reduce the damage of the stem-thin cortex by burning in the hot sun. In the winter, the diseases and insect pests on the branches can be eliminated and the freeze-dried branches can be prevented.
(8) "Separate." The osmanthus planted in the garden and the potted osmanthus planted in the bonsai garden should be designed with proper spacing. This move is conducive to air and light transmission between plants, promote flower bud formation, to prevent baldness in the middle and lower branches, but also conducive to spraying work.
(9) "Induced." Before winter, stick grassy branches at the branches of the sweet-scented osmanthus to trap the insects into the winter. After the winter, the grass group was disintegrated and burned.
(10) "Education". Protection and use of ladybugs to control scale insects; protection and utilization of grasshoppers to control whiteflies; protection and use of predatory mites to control red spiders.
First, the principle of prevention
1. Do a good job of planting and cultivating Osmanthus fragrans to maintain its healthy growth and enhance its immunity and resistance.
2. Improve the environmental sanitation conditions in the planting and potting sites, so that the osmanthus pests and diseases do not have room for space and activities.
3. Do a good job in predicting and forecasting Osmanthus diseases and insect pests. Pests and diseases in the initial stage (ie, after the discovery of the disease center), pests in the young stage (that is, before the 3rd instar), we must promptly prevent and control, and strive to prevent the occurrence or occurrence of pests and diseases.
Second, the principle of comprehensive prevention Integrated control is not dependent on individual control technology, but the integrated use of manual operations, garden management, physical methods, biotechnology and chemical pesticides and other five major technical means, comprehensive prevention and treatment of sweet-scented osmanthus pests and diseases.
1. Manual operation (1) "Cut". By pruning to improve the air and light conditions of Osmanthus fragrans plants, not only can promote its robust growth, but also reduce the incidence of pests and diseases.
(2) "scrape." With a scraper knife, the scraped hides and lesions in the osmanthus pods and skins were scraped off.
(3) "sweep." The twigs around the osmanthus fragrans plants are periodically removed and burned or used as manure.
(4) "Turn over." In the early winter, the soil of the garden or the seedlings was ploughed, which destroyed the living environment of the pests and caused them to be exposed to surface death.
(5) "Change." In early spring, potted osmanthus can be changed in pots and soil, some of the soil can be shaken off, and clean soil can be replaced to avoid the outbreak of pests and diseases hidden in pots and soils.
(6) "Sun". The replaced potted soil can be exposed on a sunny day and exposed on the concrete floor to eliminate the pests and diseases, and then mix and decompose the cooked manure to make it available for subsequent use.
(7) "Coating." Brushing lime mud on the sweet-scented osmanthus branches can prevent the stem-feeding pests from entering the eggs during the summer and reduce the damage of the stem-thin cortex by burning in the hot sun. In the winter, the diseases and insect pests on the branches can be eliminated and the freeze-dried branches can be prevented.
(8) "Separate." The osmanthus planted in the garden and the potted osmanthus planted in the bonsai garden should be designed with proper spacing. This move is conducive to air and light transmission between plants, promote flower bud formation, to prevent baldness in the middle and lower branches, but also conducive to spraying work.
(9) "Induced." Before winter, stick grassy branches at the branches of the sweet-scented osmanthus to trap the insects into the winter. After the winter, the grass group was disintegrated and burned.
(10) "Education". Protection and use of ladybugs to control scale insects; protection and utilization of grasshoppers to control whiteflies; protection and use of predatory mites to control red spiders.
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