4- 4-Quinolone alkaloids with nematicidal activity and method for controlling nematode using the same

摘要

The present invention relates to a process for the preparation ofTriumfetta grandidensQuinolone alkaloid materials and method for controlling root-knot nematodes using the 4-quinolone alkaloid materials, wherein one of the two 4-quinolone alkaloid materials of the present invention is a 5'-methoxyquercionin A, and the other substance is the known Wallerion A substance. The concentrations of 50% nematode activity were 0.09 / ml and 0.27 / ml for the second instar larvae of tomato root nodule, and 91.9% and 87.4% for nematode egg hatching at the concentration of 1.25 / ml, respectively. Respectively. The activity of these nematicides was similar to that of abamectin. In the greenhouse test, the crude extract completely inhibited the root formation at the level of 1,000 / ml. These results suggest that the use of 4-quinolone alkaloid materials can lead to the development of new plant nematocides.;