Detection of Berberine Hydrochloride in Jin Weng Zhili Particle Using TLC and HPLC

[Objectives]To screen optimum conditions of HPLC and TLC for qualitative discrimination of berberine hydrochloride contained in Jin Weng Zhili Particle,thus pro...     

Effects of Didang Qigui Decoction on Streptozotocin Induced Diabetic Cataract in Rats

[Objective]Observe effects of Didang Qigui decoction on crystalline lens,lens epithelial cells and the level of HSP70in rats with streptozotocin induced diabetic cataract. [Methods]10 SD rats were randomly selected as the blank control group,and the rest of rats were injected 60 mg /kg of streptozotocin(STZ) into the enterocoelia at one time to reproduce diabetic rats models. 55 of the model animals were selected and randomly divided into model group,diamicron group,Didang Qigui decoction group,Didang Qigui decoction high dose group,Didang Qigui decoction and diamicron group,and corresponding interference was given to each group respectively. Turbidity of the lens was examined under the slit lamp respectively at 2,4,6,8 week; after 8 weeks,morphologic changes of crystalline lens were observed under the microscope,and the expressions of HSP70in lens epithelial cells(LEC) were detected. [Results] Crystalline lens of rats in the blank control group were always transparent and complete. Those of rats in the model group were gradually changed until becoming complete turbid. The rest of treatment groups with turbidity degree of rats' lens from heavy to light were Didang Qigui decoction high dose group,Didang Qigui decoction group,diamicron group,and Didang Qigui decoction and diamicron group. Forms of HE staining lens epithelial cells were also changed. If rats in the blank control group were taken as standards,expressions of HSP70in LEC of crystalline lens in the model group gradually rose. In the treatment groups,the rate of HSP70positive expression of rats in the Didang Qigui decoction high dose group was higher than that rate in diamicron group,idang Qigui decoction group,and Didang Qigui decoction and diamicron group. The discrepancy was very obvious( P 0. 05).[Conclusions]By reducing blood glucose,gathering of sugar metabolites and osmotic pressure in crystalline lens,Didang Qigui decoction can effectively protect lens injury in experimental diabetic rats and inhibit the occurrence and development of cataract in diabetic rats,so it exerts certain preventive and therapeutic effects on early diabetic cataract in rats.     

Study on the Lactation-promoting Function Experiment of Yue-naitang Decoction in Pregnant Female Rats

[Objective]To investigate the lactation-promoting function of Yue-nai-tang decoction in female rats.[Methods]The newly delivered female rats were divided into 6 groups,blank control,low dosage group(125 mL/kg),moderate dosage group(250 mL/kg),high dosage group(500 mL/kg),pure rice wine group(250 mL/kg)and Muruduo granules as positive control group(9 g/kg).Each group contained8 female rats.Each fed 10 newborn rat pups to simulate the overload lactation model.Medication was lasted continuously for 21 days by intragastric administration.The growth status of rats was observed daily by recording the lactation of each female rat and body weight of cub.After medication,mammary gland of experimental rats was taken out for determining the mammary gland index and observing mammary sections.[Results]Both the lactation and body weight of rats in moderate dosage group and high dose group were remarkably higher than that in blank control,while did not vary significantly from positive control group.The mammary section observation found that the adenosis of mammary gland of female rats in middle and high dosage group(250,500 mL/kg)grew normally,with no difference from mammary gland of normal lactation rats,significantly superior to blank control and pure rice wine group,while not different from the positive group.[Conclusions]Yuenai-tang decoction can promote the lactation of newly delivered rats,thus facilitating the growth of mammary gland and cubs.     

The Acute Toxicity and Subchronic Toxicity Test of Zhuqin Extract

[Objective] To investigate the safety of compound Zhuqin extract.[Methods]In acute toxicity test,mice in test group were given compound Zhuqin extract( i. g.) by gavage,the dosage of which was 0. 8,0. 6,0. 45,0. 35 g /20 g,to determine the median lethal dose of compound Zhuqin extract( LD50). In maximum tolerance experiment,mice in test group were given compound Zhuqin extract( i. g.) by gavage,the dosage of which was 0. 5 g /20 g,to determine the maximum tolerance dose( MTD); In the sub- chronic toxicity test,rats in test group were given compound Zhuqin extract( i. g.) by gavage for 30 d,the dosage of which was 2. 0,1. 5,1. 0 g /200 g,and normal saline negative control group was set. Clinic condition of rat was observed everyday,hematology,blood biochemistry,anatomy,organ index and organization pathological observation were conducted after test.[Results]The acute toxicity test failed to detect median lethal dose of compound Zhuqin extract; the weight differences were not significant( P 0. 05); some blood biochemical criterion and blood routine index had significant differences( 0. 01 P 0. 05),and some indexes had extremely differences( P 0. 01); organ index,necropsy and histopathology had abnormalities.[Conclusions] Compound Zhuqin extract was safe and reliable.     

Effect of MORINDAE OFFICINALIS Extract on the Behavior and Zymology of Senile Dementia Model Rats

[Objective]To study the effect of MORINDAE OFFICINALIS extract on the behavior and zymology of senile dementia rat model. [Methods]Senile dementia rat model was prepared by intraperitoneal injection of D-galactose( 120 mg/kg) and sodium nitrite( 90 mg/kg) for 30 d. 60 rats were divided into 6 groups,normal control group,model group,nimodipine group,high-dosage group of aqueous extract of MORINDAE OFFICINALIS,medium-dosage group of aqueous extract of MORINDAE OFFICINALIS and low-dosage of aqueous extract of MORINDAE OFFICINALIS. The learning and memory ability was measured by rat step-down test. The activities of SOD,MDA and MAO-B were determined. The expression of MAO-B mRNA was determined by RT-PCR. [Results]After intraperitoneal injection of MORINDAE OFFICINALIS extract,the learning and memory abilities of model rats increased. The biochemical criterion of SOD,MDA and MAO-B was improved. The expression level of MAO-B mRNA decreased significantly. [Conclusions] Extract of MORINDAE OFFICINALIS could protect acute aging model rats at certain degree.     

西北地区芝麻抗旱性鉴定研究

为探索西北地区在芝麻生殖生长阶段干旱胁迫条件对资源的影响,为我国抗旱品种改良提供亲本,本试验选择山西省农业科学院经济作物研究所为试验点,用中国农业科学院油料作物研究所提供的14 个抗旱资源为试验材料,在芝麻生殖生长阶段进行干旱胁迫处理,调查生育期、出苗率、存活率、株高、叶片数、生物产量、经济产量,进行对比分析。结果显示：干旱胁迫条件下,晋芝1 号、晋芝2 号生殖生长期长,为59 天;幼苗存活率高,为96.6%~100%;株型高大,分别为179.1cm、149.16cm;叶片多,分别为78.3 个、74.8 个;生物产量高,鲜重分别为8.23g、7.61g;干重分别为7.54g、6.82g;经济产量高,晋芝2 号127.50g,晋芝1 号80.0g。表明干旱胁迫不利于芝麻的生长,参试材料中晋芝1 号、晋芝2 号抗旱能力强,可以作为抗旱品种改良的亲本材料和遗传研究的核心材料。     

Experimental Study of Penthorum chinense Pursh on Mouse with Alcoholic Fatty Liver Disease

[Objective] To explore the prevention effect of Penthorum chinense Pursh on alcoholic fatty liver disease in mouse. [Methods]Healthy Kunming SPF mouse were used in the test and with the modified modeling method established by Fan Jiangao et al.,mouse were fed with high fat diet and intragastric administration of alcohol at the dose of 3( BW) g / kg( 0. 1( BW) m L /10 g). While modeling,the Penthorum chinense Pursh extract was administrated for intervention,TPN was used as control. The general conditions of mouse were observed,the liver coefficient was detected and the blood was sampled from eyeballs for detection of serum TG,TC,ALT,AST and MDA.[Results]The alcoholic fatty liver disease occurred in mouse 3 weeks after modeling. The liver fat in Penthorum chinense Pursh extract group improved significantly and the serum TG,TC,ALT and AST in Penthorum chinense Pursh extract group decreased significantly compared with model group( p 0. 05,p 0. 01). The serum MDA in Penthorum chinense Pursh extract group decreased compared with model group,but it was of no statistical significance.[Conclusions] Penthorum chinense Pursh had good effects on preventing and curing alcoholic fatty liver disease.     

钾素对甜玉米苗期光合特性的影响

通过盆栽试验研究了钾对5种不同甜玉米品种苗期净光合速率、蒸腾速率、胞间二氧化碳浓度和蒸腾速率的影响, 旨在为甜玉米高效合理施用钾肥提供理论依据。结果表明,在相当于0-324.3kg/hm2钾肥施用量范围内,金茂3号、鲜美黄金蜜和贵甜一号等3个品种苗期光合速率、气孔导度和蒸腾速率均随着钾肥施用量增加而增加,胞间CO2浓度则表现出相反的变化规律。对于广甜特大金银粟和粤甜9号等2个品种而言,在0-270.25kg/hm2施用量范围内,钾肥对其上述光合特性表现出类似的影响规律,但随后增加钾肥用量,光合速率、气孔导度和蒸腾速率均有所降低而胞间CO2浓度升高。以上结果表明,上述5个甜玉米品种对钾的耐受能力存在差异,在制定合理钾肥施用量时应综合考虑其钾素营养特性。     

Anti-bacterial Effects in Vitro of Jinweng Zhili Granules and Its Antipyretic and Anti-inflammatory Effects on Animal

[Objective] To research the anti-bacterial effects in vitro of Jinweng Zhili Granules and its antipyretic and anti-inflammatory effects on animal. [Methods]Anti-bacterial effects of Jinweng Zhili Granules were detected by MIC method and drug sensitive test. A total of60 male Kunming mice were randomly divided into blank control group,aspirin group,low-dosage group of Jinweng Zhili Granules,middledosage group of Jinweng Zhili Granules,and high-dosage group of Jinweng Zhili Granules. Mice were given drugs by gavage for 7 d. Swelling degree of ear slice was calculated and the anti-inflammatory effects were analyzed. A total of 60 rabbits were randomly divided into high-dosage group of Jinweng Zhili Granules,middle-dosage group of Jinweng Zhili Granules,low-dosage group of Jinweng Zhili Granules,positive drug group,blank control group and model group. Endotoxin was administrated through the ear venous in order to establish febrile model. Effects of Jinweng Zhili Granules on the body temperature of febrile rabbits induced by endotoxin were analyzed. Blood was collected by heart blood collection method. When the plasma was separated,cA MP content in rabbits were detected. [Results] The MIC values to Escherichia coli,Staphylococcus aureus,Clostridium welchii,Salmonella typhimurium,Candida albicans were 3. 75,1. 875,15,7. 5 and 7. 5 mg / mL,respectively. The swelling degree of mice slice in model group reached 121. 7%. And the swelling degrees in high- and middle-dosage groups of Jinweng Zhili Granules were 55. 6% and 56. 2%,respectively,which had extremely significant differences with that of model group( P 0. 01).Jinweng Zhili Granules reduced the body temperature of febrile rabbits induced by endotoxin. The cA MP content in model group was 34. 13 pmol / mL; and the cA MP contents in high-and low-dosage groups were 24. 74 and 26. 61 pmol / mL,respectively,which had extremely significant differences compared with model group( P 0. 01). [Conclusions]Jinweng Zhili Granules had anti-bacteria,anti-inflammation and antipyretic effects.     

Hypoglycemic Effects of the n-Butanol Part of Sorbus tianschanica

[Objective] To extract and isolate the effective components from Sorbus tianschanica,and to research the hypoglycemic effects of n-Butanol part. [Methods]S. tianchanica was extracted by reflux extraction. After gradient elution,n-Butanol part was obtained. With diabetic mice induced by STZ as the model,blood glucose test was carried out. [Results]n-Butanol part in administration group had significant differences in hypoglycemic effects with that in model group(P 0. 05),showing that n-Butanol part had certain antidiabetic functions on diabetic mice induced by STZ. And the hypoglycemic effects showed a reducing trend as the administration dosage decreased,indicating that administration dosage had positive correlation with hypoglycemic effects. n-Butanol in different parts could reduce the blood glucose of diabetic mice in different degrees. And the blood glucose value in high-dosage group(8 g /kg) reduced greatly at 2 h after administration,having great differences with that in model group(P 0. 01). This showed that high dosage was helpful to the glucose tolerance of diseased mice,and could effectively protect against the rapid increase of blood glucose after meal. n-Butanol had no significant effects on the blood glucose of normal mice. However,the morality rates in high-and middle-dosage groups were both higher than that in low-dosage group; and the morality rate in administration group was lower than that in model group,showing that n-Butanol could promote the survival rate of diabetic mice. [Conclusions]S. tianchanica had certain effects of anti-diabetes.     

复方杜仲对肉鸡免疫器官发育及ND-HI效价的影响

[目的]观察不同浓度复方杜仲对肉鸡免疫器官发育及新城疫血凝抑制（ND-HI）效价的影响。[方法]1日龄AA肉鸡400只随机均分4组。Ⅰ、Ⅱ、Ⅲ、Ⅳ组分别在饮水添加0 g/L、1.25 g/L、2.5 g/L和5 g/L的复方杜仲。每周末各组随机抽样8只称重、心脏采血、屠宰取胸腺、脾脏和法氏囊称重。[结果] 1至6周胸腺指数、法氏囊指数各组间无差异。14日龄脾指数Ⅱ组高于Ⅰ组(P<0.05);21日龄Ⅱ组高于其他组(P<0.05),其中Ⅱ、Ⅲ组间差异极显著(P﹤0.01);42日龄复方杜仲Ⅱ、Ⅲ组脾指数均低于Ⅰ组(P<0.05),Ⅳ组极显著低于Ⅰ组(P<0.01)。21日龄Ⅲ、Ⅳ组ND-HI抗体水平高于Ⅰ组(P<0.05);28日龄达到最高水平,Ⅱ、Ⅲ组高于Ⅰ组(P﹤0.05),Ⅳ组极显著高于Ⅰ组(P﹤0.01)。[结论] 复方杜仲水煎液对前3周肉鸡脾指数有一定的影响,且以低剂量组效果最佳。对ND-HI效价有增强作用,呈现量效递增关系。     

Study on Screening of Anti-inflammatory Activity Areas in the Stems and Leaves of Platycodon grandiflorum

[Objective]To study anti-inflammatory effects of water extract of the stems and leaves of Platycodon grandiflorum. [Methods]Observed anti-inflammatory effects of extract of the stems and leaves of Platycodon grandiflorum using 4 kinds of animal models of acute inflammation which was consisted of rats footpad swelling induced by egg white,ear swelling caused by xylene in mice,celiac capillary permeation in mice induced by 1% glacial acetic acid and content of PGE2in inflammatory tissue of rats' swelling foot induced by egg white. [Results]Extract of the stems and leaves of Platycodon grandiflorum had a certain degree inhibition effect on ear swelling caused by xylene in mice,rats' footpad swelling and content of PGE2in inflammatory tissue of rats' swelling foot induced by egg white and celiac capillary permeation in mice induced by acute inflammation. Compared with model group,parts of the stems and leaves of Platycodon grandiflorum that contained alkaloid were of significant differences( P 0. 05 or P 0. 01). [Conclusions] Parts of the stems and leaves of Platycodon grandiflorum that contained alkaloid had strong anti-inflammatory effects and other parts also had various degrees of anti-inflammatory effects.     

Preventive Effects of Vitamin C And Polysaccharides in Dioscrea pposite Thunb. on Cadmium-induced Liver Injury in Mice

[Objective]To investigate the preventive protective effects and its mechanism of vitamin C and polysaccharide in Dioscrea pposite Thunb. on cadmium-induced liver damage in mice. [Methods]50 Kunming mice were randomly divided into control group,model group,D. pposite polysaccharides protection group,vitamin C protection group,D. pposite polysaccharides and vitamin C protection group. At the 7th day of feeding,the mice were given saline by gavage,and the mice in other groups were intraperitoneally injected with 3. 0 mg /kg CdCl2 solution. 24 hours after injection,blood was collected for ALT and AST test. Then,mice were sacrificed and the livers were removed for the calculation of hepatosomatic index(liver weight / body weight). Also,the liver homogenates were prepared for the determination of SOD and GSHPx activities and the of MDA and NO contents. [Results]Compared with the mice in model group,the liver-somatic index,serum ALT,AST activity,and contents of liver MDA and NO reduced,the activities of SOD and GSH-Px,and the content of GSH improved in D. pposite polysaccharides and vitamin C protection group(*P 0. 05,**P 0. 01). Compared with the model grfoup,the protective effects of D. pposite polysaccharides combined with vitamin C strengthened(**P 0. 01). [Conclusions]The combination of D. pposite polysaccharides and vitamin C has preventive protection effects on cadmium-induced liver injury in mice by antagonizing cadmium and /or oxidative stress. The application of D. pposite polysaccharides combined with vitamin C had a synergistic effect.     

Extraction Technology and Anti-depression Activity of Saponins from Lilium brownii

[Objective]To investigate the extraction technology of saponins from lily(Lilium brownii) and the anti-depressant activity of saponins. [Methods]The saponins extraction was optimized by an L9(34) orthogonal design with the volume fraction of ethanol,amount of ethanol,extraction time as factors,using saponins extraction rate as index. Kunming mice tested were divided into normal control group(constant volume of normal saline),fluoxetine group(0. 004 g /kg) and high-dose,medium-dose and low-dose lily saponins groups(0. 1,0. 05 and0. 025 g /kg). The duration of immobility within 4 min were recorded in tail suspension test and forced swimming test. Body temperatures of mice were recorded at 4 h after modeling in reserpine-induced hypothermia test. [Results]The optimal extraction technology of lily saponins was as follows: extraction with 70% ethanol once,lasting for 3 h. Compared with normal control group,the duration of immobility within 4 min in tail suspension test and forced swimming test were decreased in medium-dose and low-dose lily saponins groups(P 0. 05); the body temperature of mice was decreased at 4 h after modeling(P 0. 05). [Conclusions]Lily saponins have certain anti-depressant activity in mice.     

脱水对万寿竹种子发芽及部分抗逆生理指标的影响

[目的]探究万寿竹种子脱水过程中,发芽及部分抗逆生理指标的变化情况,为万寿竹种子贮藏及采收提供理论依据.[方法]利用室温硅胶干燥法获得45.90％、40.50％、38.07％、33.08％、27.26％、16.67％、14.63％7个含水量梯度的种子,以未干燥的种子(49.12％)为空白对照,分别测定各个含水量梯度种子的生活力、发芽率、电导率、CAT、SOD、POD、AsA-POD活性、MDA、可溶性蛋白质含量.[结果]种子含水量保持在33.08％以上时,能保持较高的生活力、发芽率,当含水量下降到33.08％以下时,种子发芽率和生活力开始显著下降.[结论]万寿竹种子不耐脱水,属于顽拗性种子,贮藏时含水量应保持在33.08％以上.     

Study on the Anti-inflammatory and Analgesic Effects of 12 Guangdong Native Heat-clearing Herbs

[Objective]To explore the anti-inflammatory and analgesic effects of 12 Guangdong Native Heat-clearing Herbs with identical dose( 16 g/kg) and to provide reliable experiment basis for the clinical development and application of anti-inflammatory drugs. [Methods]To explore the anti-inflammatory and analgesic effects of 12 Guangdong Native Heat-clearing Herbs by acetic acid writhing,hot plate method,ear swelling caused by xylene in mice and celiac capillary permeation in mice induced by acetic acid. [Results]After intragastric administration of drugs( 16 g / kg) in mice for 7 days,the inhibiting effects of Radix Helicteris,Thinleaf Adina Fruit,Nervilia fordii,Radix Ilicis Asprellae and Trikeraia hookeri on ear swelling caused by xylene in mice were significant and the inhibiting effects of which on the increase of capillary permeability in mice induced by acetic acid were also significant( P 0. 05). Radix Eupatorii Chinensis,Pronephrium triphyllum and Bidens biternata could inhibit ear swelling caused by xylene in mice significantly and Evodia lepta Merr,ovate leaf Holly Bark and Rubus parvifolius could inhibit the increase of capillary permeability in mice significantly( P 0. 05). The effects of 12 Guangdong Native Heat-clearing Herbs on thymus and spleen were not significant( P 0. 05); Trikeraia hookeri,Radix Ilicis Asprellae,ovate leaf Holly Bark,Radix Helicteris, Nervilia fordii and Herba Polygoni Chinensis could evidently reduce the times of writhing response in mice induced by acetic acid and increase the threshold of pain in mice induced by thermal stimulus; Evodia lepta Merr and Pronephrium triphyllum could evidently reduce the times of writhing response in mice induced by acetic acid,ovate leaf Holly Bark could significantly prolong the latent time of writhing response in mice induced by acetic acid( P 0. 05) and Bidens biternata could significantly increase the threshold of pain in mice induced by thermal stimulus. [Conclusions]Radix Helicteris,Thinleaf Adina Fruit,Nervilia fordii,Herba Polygoni Chinensis,Radix Ilicis Asprellae,Trikeraia hookeri, Radix Eupatorii Chinensis,Pronephrium triphyllum,Bidens biternata,Evodia lepta Merr,ovate leaf Holly Bark and Rubus parvifolius had anti-inflammatory action; Radix Helicteris,Nervilia fordii,Herba Polygoni Chinensis,Radix Ilicis Asprellae,Trikeraia hookeri,Pronephrium triphyllum,Bidens biternata,Evodia lepta Merr and ovate leaf Holly Bark,etc. had analgesic effect.     

灵芝孢子油对老龄小鼠抗氧化能力的影响

为了开发利用灵芝孢子油资源,对灵芝孢子油进行了抗氧化作用的研究。选用老龄小鼠作为氧化模型,连续40 d给小鼠灌喂灵芝孢子油,灌胃剂量为250,750 mg/kgBW,分别相当于人体推荐剂量的10,30倍。然后测定脂质氧化产物、蛋白质氧化产物、抗氧化酶活力、抗氧化物质等相关指标。结果表明,高剂量组小鼠的血清MDA含量为6.47 nmol/mL,明显低于对照组小鼠的7.76 nmol/mL(p<0.05);高剂量组小鼠的肝组织蛋白质羰基含量为4.97 nmol/mgprot,明显低于对照组小鼠的7.08 nmol/mgprot(p<0.01)。灵芝孢子油能有效减少自由基对机体脂质和蛋白质的损伤,具有良好的抗氧化作用。     

The Protection and Regulatory Effects of Yupingfeng Polysaccharides on Mice with Immune Function Damage

[Objective] To discuss the protection and regulatory effects of Yupingfeng polysaccharides on mice with immune function damage.[Methods]The immunosuppressive mice mode was established by 80 mg/kg cyclophosphamide. Effects of different dosages of Yupingfeng polysaccharides( 150,300,600 mg / kg) on structure and function recovery of mice immune organs were observed. [Results]The thymus and spleen in mice enlarged significantly; spleen index of mice increased obviously; splenic lymphocyte proliferation and transformation capacitates and NK cell activity all increased significantly( P 0. 05 or P 0. 01). Besides,spleen structure was damaged with compensatory hyperplasia of lymphoid tissue. Observation of polysaccharides positive control group( no administration of cyclophosphamide) showed that after mice were stimulated by Yupingfeng polysaccharides,spleens showed structural hyperplasia and hypertrophy. [Conclusions]Yupingfeng polysaccharides significantly promoted the structural and functional compensation of spleen after immunosuppression,and had obvious enhancement effects on spleen functions of normal mice.     

The Effect of Arbutin on Mice Brain Cells after Ischemia-reperfusion Injury

[Objective]To study the effect of the Chinese traditional medicine arbutin on brain cells after ischemia-reperfusion injury and provide a theoretical foundation for its clinical application. [Methods]Forty Kunming mice were randomly divided into four groups,namely the blank group,the ischemia-reperfusion group,the chemoprophylaxis group and the medication group. The cerebral ischemia-reprefusion model,made according to the principle of brain damage caused by ischemia,was stained with TTC and HE to observe cells' morphological changes.SOD activity,MDA content and GSH-Px activity in brain tissues were tested. [Results]Compared with the ischemia-reperfusion group,necrosis of ischemia areas stained by TTC in the chemoprophylaxis group and the medication group was less obvious. HE staining showed the alleviation of cells damage. The enhancement of SOD activity and that of GSH-Px activity showed significant differences. MDA content was reduced(P 0.05 for both). [Conclusions]Arbutin had antioxidant properties which can effectively prevent and protect brain cells from damage.     

金银花中戊唑醇、苯醚甲环唑的残留分析

为解决金银花种植过程中农药的使用问题,以金银花为试验对象,选用广谱杀菌剂戊唑醇和苯醚甲环唑,采用常量、倍量、二次和三次灌根处理,对最终的残留含量进行分析。头茬花各处理中苯醚甲环唑均未检出,而二茬花中戊唑醇的残留量为0.14~0.22 mg/kg,存在残留超标风险。建议使用10%苯醚甲环唑4000倍液灌根处理,防治金银花土传病害,灌根2~3次,安全间隔期15天。