CONTROLLING AGENT AGAINST FLACHERY DISEASE OF SILKWORM

摘要

PURPOSE:The titled controlling agent prepared by joining a leachate obtained from Euchresta japonica Benth., Sophora angustifolia (Sophorae Radix) and Glycyrrhiza glabra L. var. glandulifera Regel et Herder (licorice) to a leachate obtained from a fruit of Opuntia Brasiliensis Haw., Opuntia arborescens Eng., etc., boiling and cooling the resultant mixture, filtering the cooled mixture, and adding L-histidine, etc. to the filtrate. CONSTITUTION:A controlling agent against flachery diseases of silkworms prepared by joining a leachate obtained by dipping Euchresta japonica Benth. (the root of the Euchresta japonica Benth. or the root dried in the shade), Sophora angustifolia (the root of the Sophora angustifolia or the root dried in the shade; Sophorae Radix) and Glycyrrhiza glabra L. var. glandulifera Regel et Herder (licorice) in hot water to a leachate obtained by dipping a fruit of Opuntia Brasiliensis Haw., Opuntia arborescens Eng., etc. in warm water, and if necessary boiling the resultant mixture, cooling the mixture, filtering or centrifuging the mixture with a centrifugal separator, and adding L-histidine and/or L-ascorbic acid to the resultant filtrate, etc. The Euchresta japonica Benth. and Sophora angustifolia (Sophorae Radix) contain matrine and oxymatrine as principal components, and the Sophora angustifolia contains further sophoranol, anagyrine, isomatrine, etc. as accessory components.