Abstract

The potato cyst nematode (PCN) Globodera pallida causes considerable yield losses to the main Italian and Dutch potato growing areas. Dimethyl disulfide (DMDS), on the base of recent studies can control phytoparasitic nematodes, soilborne pathogens and weeds. Two field trials were carried out to verify its efficacy on potato in Italy (Conversano, Bari province) and in The Netherlands (Nieuwe Pekela, Groningen province) (trial IT and NL, respectively) against G. pallida. The soil was subdivided in plots of 200 m2 for shank application with machines. Each plot was subdivided in 5 (IT) or 4 (NL) sub-plots to provide replications for each treatment. In both trials DMDS treatments were: i, ii and iii, Accolade in shank formulation (DMDS, 99.1%) at the rates of 180, 280 and 380 L/ha. Mocap (ethoprofos 10%) was used at 100 Kg/ha and Monam (metam sodium 510 g/L) at 300 L/ha, as standard controls in Italy and The Netherlands, respectively. The lowest dose of DMDS in the trial NL was also applied mixing the soil by a spading machine and then pressing it with a roller. In both trials untreated soils were used as controls. DMDS was applied three (IT) and five (NL) weeks before sowing. Fumigated treated plots were covered for two (IT) and four (NL) weeks with plastic films virtually impermeable (VIF) with the exception of the metam-Na. One week later soil aeration, potato were sown in each plot. Soil samples were collected before and after treatments and at the potato harvest. Cysts were extracted by the Fenwick can and their number/100 g dried soil and number of eggs and juveniles inside cysts determined. At the harvest the weights of potato tubers were recorded. No significant differences were evident among treatments including the untreated controls in the number of cysts/100 g dried soil in the I trial. In NL trial all treatments significantly reduced the number of cysts in comparison to the untreated control. Marketable potato yields (MPY) in all DMDS and Ethoprofos (IT) and metam-Na (NL) treatments were significantly higher than in the untreated control. Among DMDS treatments at different rates in both trials no significant differences were recorded. MPY in Ethoprofos treatment was significantly lower than those recorded in all DMDS treatments. Concluding, DMDS treatments could be positively and favourably considered in PCN sustainable control.

Autore Pugliese

• Sasanelli Nicola

Tutti gli autori

• Dongiovanni C.; Sasanelli N.; Schepel E.; Fumarola G.; Van de Griend P.; Santori A.; Myrta A.

Titolo volume/Rivista

Non Disponibile

Anno di pubblicazione

2015

ISSN

Non Disponibile

ISBN

Non Disponibile

Numero di citazioni Wos

Nessuna citazione

Ultimo Aggiornamento Citazioni

Non Disponibile

Numero di citazioni Scopus

Non Disponibile

Ultimo Aggiornamento Citazioni

Non Disponibile

Settori ERC

Non Disponibile

Codici ASJC

Non Disponibile