| 摘要 |
PURPOSE: A antifungal and insecticidal composition containing an extract of Cinnamomi Cortex as a main ingredient is provided which exhibits excellent antifungal activity against Botrytis cinerea and Colletotrichum orbiculare causing major plant diseases. CONSTITUTION: Cinnamomi Cortex is crushed, followed by addition of 5 times of 70% hydrous alcohol, extraction at 4 to 40deg.C for 12hr and filtration. The antifungal and insecticidal composition contains 0.002 to 20% by weight of the Cinnamomi Cortex extract. For an example, 1kg of Cinnamomi Cortex is crushed, followed by addition of 5 times of 70% hydrous alcohol, extraction at 4 to 40deg.C for 12hr, filtration with Whatman No. 42 paper and then drying with a rotary vacuum evaporator to produce 115g of the composition. |
