Waldo Benjamin D, Grabau Zane J, Mengistu Tesfamariam M, Crow William T
Entomology and Nematology Department, University of Florida , Gainesville, FL, 32611.
National Program Leader, Division of Plant Protection, National Institute of Food and Agriculture , Washington, DC, 20024.
J Nematol. 2019;51:1-12. doi: 10.21307/jofnem-2019-009.
In turfgrass systems, nematicides are a valuable tool for managing plant-parasitic nematode populations, but few studies have examined nematicide effects on non-target nematodes. The study evaluated effects of turfgrass nematicide formulations of abamectin (Divanem SC), fluopyram (Indemnify), furfural (MultiGuard Protect EC), and fluensulfone (Nimitz Pro G) on non-target nematode populations in bermudagrass ( spp.). Nematicides were applied at labeled rates every four weeks as a summer treatment program from June 7, 2016 to August 30, 2016 and April 24, 2017 to July 18, 2017. Samples were collected before the initial treatment and 2 d, 14 d, 56 d, and 238 d after the final treatment in both years for nematode community analysis. Data from each nematicide treatment were compared to the untreated at each sample date using analysis of covariance with initial population counts serving as the covariate. Abamectin had moderate impact and fluopyram had substantial impact on the non-target nematodes. Furfural and fluensulfone had minimal impact on non-target nematodes. The results of this study suggest nematicides can impact non-target nematode densities in bermudagrass. In turfgrass systems, nematicides are a valuable tool for managing plant-parasitic nematode populations, but few studies have examined nematicide effects on non-target nematodes. The study evaluated effects of turfgrass nematicide formulations of abamectin (Divanem SC), fluopyram (Indemnify), furfural (MultiGuard Protect EC), and fluensulfone (Nimitz Pro G) on non-target nematode populations in bermudagrass ( spp.). Nematicides were applied at labeled rates every four weeks as a summer treatment program from June 7, 2016 to August 30, 2016 and April 24, 2017 to July 18, 2017. Samples were collected before the initial treatment and 2 d, 14 d, 56 d, and 238 d after the final treatment in both years for nematode community analysis. Data from each nematicide treatment were compared to the untreated at each sample date using analysis of covariance with initial population counts serving as the covariate. Abamectin had moderate impact and fluopyram had substantial impact on the non-target nematodes. Furfural and fluensulfone had minimal impact on non-target nematodes. The results of this study suggest nematicides can impact non-target nematode densities in bermudagrass.
在草坪草系统中，杀线虫剂是管理植物寄生线虫种群的一种重要工具，但很少有研究考察杀线虫剂对非目标线虫的影响。本研究评估了阿维菌素（敌螨普悬浮剂）、氟吡菌酰胺（盈辉）、糠醛（多保强乳油）和氟烯线砜（尼满思原药）等草坪草杀线虫剂配方对狗牙根（品种）中非目标线虫种群的影响。杀线虫剂按照标注剂量每四周施用一次，作为2016年6月7日至2016年8月30日以及2017年4月24日至2017年7月18日的夏季处理方案。在这两年中，于初始处理前以及最后一次处理后的2天、14天、56天和238天采集样本，用于线虫群落分析。在每个采样日期，将每种杀线虫剂处理的数据与未处理的数据进行比较，采用协方差分析，初始种群数量作为协变量。阿维菌素对非目标线虫有中等影响，氟吡菌酰胺有显著影响。糠醛和氟烯线砜对非目标线虫影响极小。本研究结果表明，杀线虫剂会影响狗牙根中非目标线虫的密度。在草坪草系统中，杀线虫剂是管理植物寄生线虫种群的一种重要工具，但很少有研究考察杀线虫剂对非目标线虫的影响。本研究评估了阿维菌素（敌螨普悬浮剂）、氟吡菌酰胺（盈辉）、糠醛（多保强乳油）和氟烯线砜（尼满思原药）等草坪草杀线虫剂配方对狗牙根（品种）中非目标线虫种群的影响。杀线虫剂按照标注剂量每四周施用一次，作为2016年6月7日至2016年8月30日以及2017年4月24日至2017年7月18日的夏季处理方案。在这两年中，于初始处理前以及最后一次处理后的2天、14天、56天和238天采集样本，用于线虫群落分析。在每个采样日期，将每种杀线虫剂处理的数据与未处理的数据进行比较，采用协方差分析，初始种群数量作为协变量。阿维菌素对非目标线虫有中等影响，氟吡菌酰胺有显著影响。糠醛和氟烯线砜对非目标线虫影响极小。本研究结果表明，杀线虫剂会影响狗牙根中非目标线虫的密度。
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