黄龙病的论文

Huanglong first citrus disease in China's Guangdong Province, the Chaoshan area that has been 100 years of history. In the early 1940s, Chen Bao of the Chaoshan area of the distribution of citrus Huanglong, hazards and pathogens carried out a detailed survey and study, the pathogen that caused the disease to toxic factor. 50 to 60 years, Professor Lin Kongxiang through a lot of tests, confirmed that the disease is a citrus Huanglong can be transmitted through grafting of the disease, the first time that the citrus Huanglong disease is a contagious disease at that time under the inference that the level of awareness The pathogenic virus. 1979, Ko-such as through the electron microscope and found that thick outer membrane of bacteria Huanglong (20-30 nm), and uneven thickness, that should belong to the pathogenic type of Rickettsia's (Rickettsia-like Organisms, as RLO) And then was officially named the category of bacteria (BLO). Zhao Xue, and other sources (1979) through pilot confirmed citrus Psylla (Diaphorina citri) Huanglong disease can spread through the Huanglong survey found that the prevalence of regional and citrus Psylla the distribution of general consensus. 1987, Qi-Ming Zhou first proposed the citrus Psylla in Guangxi in the south to the northern Guangxi migration issues. China's summing up decades of citrus Huanglong disease prevention and treatment of experience: strict enforcement of the protection of plant quarantine ward and no important new area of the means of establishing disease-free nursery, nurturing seedlings are disease-free citrus Huanglong disease prevention foundation in the ward in time Psylla of citrus, complete Wachubingzhu, strengthen cultivation and management is to prevent disease and Huanglong popular key measures.可以吗?

柑橘黄龙病病害症状：有的叶片呈类似缺锌的花叶状，病树在3～5年内枝梢逐渐干枯、根烂，树势明显衰退，终致全株死亡。 常年发病，时刻防治病害发展。治疗方案：靓果安150-300倍+沃丰素600倍+大蒜油1000倍+有机硅喷雾2次，每次间隔10天左右.(针对无果粉的品种和有果粉品种转色期前)

黄龙病的症状很明显，表现在叶，果上。颜色变化明显，有绿色变为透明的黄色。植株没有生机，没有营养的表现。靓果安300倍加沃丰素600倍液喷雾补充叶面营养。

Citrus fruits Huanglong gets sick most as early as discovered in our country Guangdong Province Chaoshan area that until now had more than 100 years history. In the early-1940s, Chen Qi儤 the distribution which, the harm and the cause of disease got sick to Chaoshan area citrus fruits Huanglong has carried on the detailed investigation and the research, thought that caused this sickness cause of disease for the toxin factor. 50~ the 60s, Professor Lin Kong Hunan through the massive experiments, confirmed the citrus fruits Huanglong sickness is one kind may through plant disease which grafts infects, had proven for the first time the citrus fruits Huanglong sickness is one kind of infectious plant disease, inferred under at that time the cognition level thought that this cause of disease is a virus. in 1979, Ke Chong and so on through the electron microscope observation, discovered that the Huanglong germ the external coat periplast is thick (20-30nm), and thickness is non-uniform, thought that this cause of disease should belong to the kind to set up the gram inferior body (Rickettsia-like Organisms, is called RLO), afterward officially is named as a kind of bacterium (BLO). Zhao Xueyuan and so on (1979) (Diaphorina citri) may disseminate the Huanglong sickness through the experimental confirmation citrus fruits aphid, through the investigation discovered Huanglong gets sick the popular region is roughly consistent with the citrus fruits aphid's distribution. in 1987, Zhou Qiming proposed for the first time the citrus fruits aphid in Guangxi domestic the question which migrates by sweet osmanthus southing Gui Bei. Summarizes experience which our country several dozens year prevention citrus fruits Huanglong gets sick: The strict implementation plant quarantine is the protection does not have the ward and the newly developed area important administrative method; The establishment not gets sick the plant nursery, the cultivation not gets sick the nursery stock prevents the foundation which citrus fruits Huanglong gets sick; In the ward prompt prevention citrus fruits aphid, digs out the diseased plant thoroughly, strengthens the cultivation management is prevents the Huanglong sickness to occur with the popular essential measure.

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