About ISMAN M B
About Univ. British Columbia, Canada
About PROKSCH P
About Univ. Koln, West Germany
About Phytochemistry
About Compositae
About Encelia属
About Plant biochemistry
About Pesticides to insect pest
About Toxicity of plant derived substances
About キク科
About 植物
About 防虫
About 殺虫性
About クロメン
About ベンゾフラン類