Chen J, Cantrell C L, Duke S O, Allen M L
Biological Control of Pests Research Unit, USDA-ARS, Stoneville, MS 38776, USA.
J Econ Entomol. 2008 Apr;101(2):265-71. doi: 10.1603/0022-0493(2008)101[265:rocaia]2.0.co;2.
Callicarpenal and intermedeol are two insect-repellent terpenoids isolated from leaves of American beautyberry (Callicarpa americana L.; Verbenaceae) and Japanese beautyberry (Callicarpa japonica Thunb.). The repellency of these two terpenoids against workers of red imported fire ants, Solenopsis invicta Buren, black imported fire ants, Solenopsis richteri Forel, and a hybrid of these two species was evaluated using digging bioassays. In a multiple choice digging bioassay using two colonies from each species and their hybrid, callicarpenal showed significant repellency at concentration as low as 50 ppm against both red imported fire ant colonies and 6.25 ppm against all black imported fire ant and hybrid colonies. Intermedeol showed significant repellency at concentration as low as 1.50 ppm against both red imported fire ant colonies and 6.25 ppm against all black imported fire ant and hybrid colonies. In total, 15 colonies, five colonies from each species and the hybrid, were tested on callicarpenal and intermedeol at 50 ppm in a two-choice digging bioassay. Both callicarpenal and intermedeol showed repellency against all colonies, and intermedeol showed significantly greater repellency than callicarpenal against both species and their hybrid.
紫珠醛和中间醇是从美国紫珠（马鞭草科美洲紫珠）和日本紫珠的叶子中分离出的两种驱虫萜类化合物。使用挖掘生物测定法评估了这两种萜类化合物对红火蚁工蚁、黑火蚁工蚁以及这两个物种的杂交种的驱避性。在一项多项选择挖掘生物测定中，使用每个物种及其杂交种的两个蚁群，紫珠醛在低至50 ppm的浓度下对红火蚁蚁群表现出显著的驱避性，在6.25 ppm的浓度下对所有黑火蚁和杂交蚁群表现出显著的驱避性。中间醇在低至1.50 ppm的浓度下对红火蚁蚁群表现出显著的驱避性，在6.25 ppm的浓度下对所有黑火蚁和杂交蚁群表现出显著的驱避性。在一项双选挖掘生物测定中，总共对15个蚁群（每个物种和杂交种各5个蚁群）进行了50 ppm的紫珠醛和中间醇测试。紫珠醛和中间醇对所有蚁群都表现出驱避性，并且中间醇对这两个物种及其杂交种的驱避性均显著高于紫珠醛。
