One of the bells is the fruit of Eucalyptus globulus, a medicinal plant also known as red trumpet flower. It is mainly produced in Gongshan and other areas in northwest my country. It is a traditional folk Chinese herbal medicine. The wolf grass is used as medicine, but its fruit is used in clinical medicine. It is called a special medicinal material in Yunnan and other regions. The perfect shape of its fruit is like a "bell", so it is called "Yikou Zhong". Alias Alias: Yunnan white tree ball, button seven, winning fruit. Shape characteristics Large shrub; roots bluish-gray, shedding in patches; branches slightly ridged. Juvenile leaves are opposite, ovate, heart-shaped at the tip, sessile, and covered with glaucoma; grown leaves are whorled, lanceolate, sickle-shaped, 15-30 cm long, 1-2 cm wide, with glandular dots on both sides, lateral veins are not very obvious, obliquely arranged at an angle of 35-40 degrees, and the marginal veins are 1 mm away from the edge; leaf stems are 1.5-3 cm long and slightly flat. Flowers are small, 4mm wide, solitary or 2-3 clustered in petiole; pedicel absent or very short; calyx tube obconical, 1cm long, 1.3cm wide, with 4 raised horns and small tubercles on the surface, covered with white frost; cap slightly flat, with a cone-shaped protrusion in the middle, shorter than the anther tube, 2-layered, smooth on the surface, caducous early; pistil 8-13mm long, in two rows, filaments slender, anthers oval; style 7-8mm long, strong. The silique is hemispherical, with four edges, 2-2.5 cm wide, with a flat and wide fruit margin and inconspicuous fruit petals. Insect removal effect Cheng Renjun used the sealed wide-mouth bottle fumigation method to study the fumigation specificity of eucalyptus globulus leaf essential oil against nymphs of grain borer. The results showed that at a concentration of 10 μL/L, the insecticide rate of eucalyptus globulus leaf essential oil could reach more than 97% within 48 hours. Islam MS et al. studied the fumigation and killing effects of eucalyptus essential oil on the dried fish pest white-bellied skinworm. After using 32μL/cm3 of eucalyptus essential oil to treat the larvae of white-bellied skinworm for 72 hours, the mortality rate reached more than 90%. Pirali-Kheirabadi K et al. studied the acaricidal specificity of Eucalyptus globulus essential oil. The mortality rates of 5% Eucalyptus globulus essential oil against nymphs of the tick were 16.7% and 37.5% after 1 day and 6 days, respectively, indicating that Eucalyptus globulus essential oil has a good toxic effect on nymphs of the tick. Li Da also studied the effects of eucalyptus leaves on the egg-laying, stomach poisoning, repelling, fumigation and repelling of stored grains of the diamondback moth. The larvae of the diamondback moth were treated by leaf immersion feeding method. All the treatment groups with different concentrations died on the third day, and the higher the concentration, the higher the mortality rate. In addition, experiments were also carried out on its larvae, and the results showed that the larval deformities increased, and the world multipolar pupation rate and masking rate decreased. In addition, Kumar P et al. studied the insecticide specificity against housefly larvae and pupae, which is rarely studied in China. The experimental results show that eucalyptus globulus oil has inhibitory specificity on housefly larvae and pupae. Therefore, eucalyptus globulus oil has great development prospects in the green and environmentally friendly product of housefly control. |
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