Evaluation of fluopyram for southern root-knot nematode management in tomato production in China
Evaluation of fluopyram for southern root-knot nematode management in tomato production in China
复制标题
氟吡菌酰胺对中国番茄生产中南方根结线虫防治的评价
DOI：
10.1016/j.cropro.2019.04.028
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发表时间：
2019-08-01
期刊：
影响因子：
2.8
通讯作者：
Qiao, Kang
中科院分区：
文献类型：
--
作者：
Ji, Xiaoxue;Li, Jingjing;Qiao, Kang
南方根结线虫（Meloidogyne incognita）是番茄种植者在蔬菜生产中面临的主要挑战之一;逐步淘汰甲基溴和限制使用土壤熏蒸剂加速了非熏蒸杀线虫剂的应用，以控制这种具有重要经济意义的植物寄生线虫。氟吡菌酰胺是一种琥珀酸脱氢酶抑制剂杀菌剂，广泛应用于蔬菜真菌病害的防治。然而，在中国，目前很少有关于氟吡菌酰胺对M.番茄叶片中隐睾菌及其对番茄产量的影响本文研究了氟吡菌酰胺对M.在实验室和田间条件下，对我国南方稻瘟病菌（Incognita）进行了调查。氟吡菌酰胺在实验室条件下对中华绒螯蟹二龄幼虫（J2）和卵具有高毒力。结果表明，两种菌株对南方根结线虫的半数致死浓度（LC_（50））分别为2.78和1.70 mg·L ~（-1）。在田间试验中，氟吡菌酰胺能有效地降低稻纵卷叶螟的种群水平。incognita，同时促进植物生长，特别是连续两年在480和640 g ha（-1）下，这显著高于480 g ha（-1）的阿维菌素（标准处理）。此外，与未处理的对照相比，三个剂量的氟吡菌酰胺处理的产量增加了21.4%-58.5%。结果表明，氟吡菌酰胺对稻瘟病菌有较好的防治效果。在番茄生产中可用于防治根结线虫，同时提高番茄生长和产量。
The southern root-knot nematode (Meloidogyne incognita) is one of major challenges tomato growers face in vegetable production; and phase out of methyl bromide and the restricted use of soil fumigants have been accelerating application of non-fumigant nematicides for control of this economically important plant-parasitic nematode. Fluopyram, a succinate dehydrogenase inhibitor fungicide, has been widely used to control fungal diseases in vegetable crops. However, in China, little information is currently available about the efficacy of fluopyram against M. incognita and its effect on tomato yield. In this study, the nematicidal effect of fluopyram on M. incognita was investigated under laboratory and field conditions in China. In the laboratory, fluopyram was highly toxic to the second-stage juveniles (J2) and the eggs of M. incognita with the median lethal concentration (LC50) value of 2.78 and 1.70 mg L-1, respectively. In the field trials, fluopyram was effective in reducing population levels of M. incognita, meanwhile enhancing plant growth, particularly at 480 and 640 g ha(-1) in two consecutive years, which was significantly greater than that of abamectin (a standard treatment) at 480 g ha(-1). Moreover, there was a yield increase of 21.4%-58.5% from the treatments with fluopyram at three doses compared with the untreated control. The results from this study indicated that fluopyram was effective against M. incognita and could be used for control of root-knot nematodes in tomato production, while enhancing tomato growth and yield.