Transmission of Citrus Likubin by a Psyllid, Diaphorina Citri
Other Title
木蝨媒介傳播柑桔立枯病之研究
Journal
中華農業研究
Journal Volume
33
Journal Volume
33
Journal Issue
1
Journal Issue
1
Pages
65-72
Start Page
65
End Page
72
Date Issued
1984-03-09
Date
1984-03-09
Author(s)
C.H. Huang
M.Y. Tsai
C.L. Wang
黃秋雄
蔡梅玉
王清玲
Abstract
In transmission studies of citrus likubin made during the years of 1931-1982, the psyllid, Diaphorina citri Kuway., successfully transmitted the likubin pathogen from diseased citrus plants to healthy Ponkan seedlings; however, the efficiency of transmission was extremely low. Of 380 plants tested, only 5 plants showed likubin symptoms 1-2 months after test feeding. Leaf discs from the suspected plants, when grafted onto Ponkan indicator plants, induced likubin symptoms 2-4 months after inoculation indicating that the suspected symptoms are indeed due to likubin infection. Our preliminary results showed that new flush from diseased scions was a favorable inoculum source for acquisition feeding in transmission tests. The acquisition feeding time, infection feeding time required for successful transmission and the latent period in vector have yet remained to be determined.
室內飼養之四至五齡期木蝨若蟲或成蟲移至罹立枯病柑桔病穗之新生嫩葉上吸食一個月，再移出供傳播試驗。量元素缺乏症供試之三百八十餘棵柑桔苗中，有五棵呈現植株矮化，葉片黃化，老葉木栓化及新葉微量元素缺乏症。此種病徵與一般所稱之柑桔立枯病無異。病徵於木蝨吸食後約一至二個月呈現。
自上述可疑柑苗切取葉片，以葉環組織接種法（Leaf -disc graft method ）嫁接到碰柑指示植物，經二至四個月指示植物同樣產生立枯病病徵，證明立枯病病原由東方柑桔木蝨（Diaphorina citri Ku - way .），蟲體傳到健全柑苗，唯木蝨傳播能力很低。其他有關研究，目前正進行中。
Subjects
柑桔立枯病
菌質病
媒介傳播
Publisher
農業試驗所
Type
journal article
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