Song Zixia, Wang Yongqing, Li Chao, Tan Yuting, Wu Jian, Zhang Zhixiang
Key Laboratory of Natural Pesticide and Chemical Biology of the Ministry of Education, South China Agricultural University, Guangzhou, 510642, China.
Department of Environmental Horticulture and Mid-Florida Research and Education Center, Institute of Food and Agricultural Sciences, University of Florida, Apopka, FL, 32703, USA.
Environ Sci Pollut Res Int. 2023 Jan;30(1):1889-1897. doi: 10.1007/s11356-022-22091-z. Epub 2022 Aug 4.
In order to control the Solenopsis invicta (S. invicta) in a safe and ecofriendly manner, this study evaluated the fumigating activity of garlic and its effect on the behavior of S. invicta. The volatile compounds and chemical constituents from garlic were collected by solid phase micro-extraction and identified by gas chromatography-mass spectrometry (GC-MS). The results showed that garlic contains 21 compounds, and that diallyl disulfide (46.51%) and (E)-1-Allyl-2-(prop-1-en-1-yl) disulfane (34.68%) were the main constituents in garlic. In addition, garlic showed strong fumigant activity and behavioral inhibition against workers. The LC values of diallyl disulfide and methyl allyl disulfide against S. invicta at 12 h were 0.05 and 0.07 μg/L, respectively. The grasping and walking abilities of ants were significantly suppressed. Moreover, minor workers were more susceptible than major workers. Thus, S. invicta can be controlled with garlic and some of its compounds as an eco-friendly approach. Results from the study could provide valuable advances for future fumigant development and possible utility in fumigant use.
为了以安全且环保的方式防治红火蚁，本研究评估了大蒜的熏蒸活性及其对红火蚁行为的影响。采用固相微萃取法收集大蒜中的挥发性化合物和化学成分，并通过气相色谱-质谱联用仪（GC-MS）进行鉴定。结果表明，大蒜含有21种化合物，其中二烯丙基二硫醚（46.51%）和（E）-1-烯丙基-2-（丙-1-烯-1-基）二硫醚（34.68%）是大蒜的主要成分。此外，大蒜对工蚁表现出较强的熏蒸活性和行为抑制作用。二烯丙基二硫醚和甲基烯丙基二硫醚在12小时时对红火蚁的LC值分别为0.05和0.07μg/L。蚂蚁的抓握和行走能力受到显著抑制。此外，小型工蚁比大型工蚁更易受影响。因此，大蒜及其某些化合物可作为一种环保方法用于防治红火蚁。该研究结果可为未来熏蒸剂的开发及熏蒸剂使用的潜在效用提供有价值的进展。
