Control of the Root-Knot Nematode Meloidogyne incognita and Weeds in Protected Cucumber with Dimethyl Disulfide (DMDS) over Two Crop Cycles: The First Results in Hungary

F. Tóth, Franciska Tóthné Bogdányi, Renáta Petrikovszki, Anita Gódor, M. Zalai, B. Bálint, P. Sunder, A. Myrta
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引用次数: 5

Abstract

The effectiveness of dimethyl disulfide (DMDS) to control root-knot nematodes ( Meloidogyne spp.) and weeds was tested for the first time in Hungary in two consecutive protected cucumber crops with application made only before the first crop. The treatments were Accolade EC (DMDS 94.1%) at 400 l/ha applied by driplines, Nemathorin 10 G (fosthiazate) at 30 kg/ha, and an untreated control. During the first cucumber cycle vigour-index, yield, root-gall index, Meloidogyne juveniles in the soil and germination of weeds were evaluated. All considered parameters were significantly improved by using DMDS compared respectively to the chemical standard and untreated control: (i) vigour-index of 7.0, 4.3 and 3.6; (ii) cumulative yield/sample of 45.1 kg, 30.9 kg, and 16.6 kg; root-gall index (RGI) of 1.2, 4.9, and 5.9; (iii) M. incognita J2/25 g soil of 0.25, 48.5 and 78.0, and (iv) number of weed seedlings/sample in the 20–30 cm soil profile of 1.1, 2.6, and 4.2. During the second cucumber crop, only root-gall index was evaluated. Results showed that a single DMDS treatment applied before the first crop had a prolonged beneficial effect on the following crop. In the second crop cycle, root gall indices were 5.58, 9.18, and 8.44 for DMDS treated plots, chemical control and untreated control, respectively.
二甲基二硫醚(DMDS)在两个作物周期内防治黄瓜根结线虫和杂草:匈牙利的初步结果
二甲基二硫醚(DMDS)控制根结线虫(Meloidogyne spp.)和杂草的有效性在匈牙利首次在两种连续的受保护黄瓜作物中进行了测试,仅在第一次种植前进行了施用。处理是通过滴注线施用的400升/公顷的Accolade EC(DMDS 94.1%)、30公斤/公顷的Nemathorin 10g(磷噻嗪)和未经处理的对照。在第一个黄瓜周期中,对活力指数、产量、根胆指数、土壤中的根结线虫幼虫和杂草的发芽进行了评价。与化学标准和未处理的对照相比,使用DMDS分别显著改善了所有考虑的参数:(i)活力指数为7.0、4.3和3.6;(ii)45.1千克、30.9千克和16.6千克的累积产量/样品;根胆指数(RGI)分别为1.2、4.9和5.9;(iii)M.incognita J2/25 g 0.25、48.5和78.0的土壤,以及(iv)20-30 cm土壤剖面中杂草幼苗/样品的数量为1.1、2.6和4.2。在第二次黄瓜种植期间,只对根胆指数进行了评估。结果表明,在第一茬作物之前施用单一DMDS处理对下一茬作物具有长期的有益效果。在第二个作物周期中,DMDS处理地块、化学对照和未处理对照的根胆指数分别为5.58、9.18和8.44。
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来源期刊
Acta Phytopathologica Et Entomologica Hungarica
Acta Phytopathologica Et Entomologica Hungarica Agricultural and Biological Sciences-Plant Science
CiteScore
1.10
自引率
0.00%
发文量
7
期刊介绍: The journal publishes papers on the infectious diseases of plants, damages caused by insects and deals with the basic aspects of chemical and biological protection. Within its field of interest additional topics such as resistance against plant diseases, and physiological, biochemical and molecular questions of plant resistance and susceptibility are also discussed. Publishes book reviews and advertisements.
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