期刊
JOURNAL OF ECONOMIC ENTOMOLOGY
卷 115, 期 5, 页码 1592-1600出版社
OXFORD UNIV PRESS INC
DOI: 10.1093/jee/toac111
关键词
Nipaecoccus viridis; sanitation; integrated pest management; steam; isopropanol
类别
资金
- Citrus Research and Development Fund (CRDF) [20-002C]
- U.S. Department of Agriculture Current Research Information System (USDA CRIS) [FLA-CRC-005788]
Hibiscus mealybug is an emerging and serious pest of citrus in Florida, with measures such as sanitizing personnel and equipment helping to limit its spread. Isopropanol sprays can effectively incapacitate the majority of mealybug crawlers but are not effective against ovisacs. Steam treatments and hot water immersion can reliably lead to 100% mortality of ovisacs, but longer times and higher temperatures are needed for steam treatments if ovisacs are insulated by equipment.
Hibiscus mealybug (Nipaecoccus viridis, Newstead) is an emerging and serious pest of citrus in Florida. Preventing the spread of hibiscus mealybug by sanitizing personnel and equipment such as individual protective covers can help limit new infestations. Two mealybug life stages, first instars (crawlers) and eggs inside ovisacs, were tested as they are the most likely to be accidentally transported on people and tools. Isopropanol sprays in 3 commercially available concentrations (50%, 70%, and 90%) were tested against crawlers and ovisacs, and steam treatments and hot water immersion were tested against ovisacs. All concentrations of isopropanol resulted in >90% incapacitation of mealybug crawlers, especially when two sprays of isopropanol were applied. However, no concentration of isopropanol reliably killed all mealybug eggs within ovisacs. Steam treatments and hot water immersion for 10 min or longer at 49 degrees C and for 5 min or longer at 54.5 degrees C resulted in 100% mortality of mealybug adults and eggs inside ovisacs. However, adults and ovisacs insulated inside of individual protective covers did not experience 100% mortality until 30 min or longer at 49 degrees C, 10 min or longer at 54.5 degrees C, and 5 min or longer at 60 degrees C for steam treatments. Isopropanol sprays can effectively incapacitate the majority of hibiscus mealybug crawlers on personnel and tools, but are not effective against ovisacs. Steam treatments and hot water immersion can reliably lead to 100% mortality of ovisacs, but longer times and higher temperatures must be used for steam treatments if ovisacs are insulated by equipment.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据