Protective Fungicide Applications for Citrus Disease

JARQ : Japan Agricultural Research Quarterly
ISSN 00213551
書誌レコードID(総合目録DB) AA0068709X
本文フルテキスト

 As the melanose and scab, the main citrus diseases in Japan, are rainfall dispersal diseases, the author has investigated the possibility of making use the active ingredients of sprayed fungicide deposits which were redistributed on the plants by rain, on the rationalization and labor-saving of fungicide applications for controlling the disease. The results are as follows:
 Copper-8-quinolinolate and Difolatan had a strong protective fungicidal effect on the pathogenic fungi and the active ingredient of these two fungicides redistributed by rainfall revealed not only the effect as the contact fungicide against the pycnospore germination of melanose but also the inhibitory efficiency against the conidia formation of scab as the eradicant fungicide.
 Difolatan and Delan were recognized as protecting the plants from pathogens by covering them with the sprayed fungicide deposits. And their effects did not quickly disappear even after ample rain.
 Consequently, it is not necessary for these fungicides to form the direct cover of sprayed deposits on plants as the traditional idea for protective fungicide applications but it could be practically useful to deposit the fungicide on the surfaces of the tree crown and let the rain redistribute them on the plants.
 The most suitable and promising procedure for this purpose is the "surface spraying" method (a small amount of concentrated fungicide should be applied to the top of plant only), and against the melanose, Ziman Dithane, Dithane, Delan and copper oxyquino line are suitable. Against the citrus scab, Difolatan and Delan are suitable.

刊行年月日
作成者 SHUNICHI YAMADA
オンライン掲載日
国立情報学研究所メタデータ主題語彙集(資源タイプ) Journal Article
7
2
開始ページ 98
終了ページ 104
言語 eng

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