Abstract Detail

Recent Topics Posters

Welacky, Tom [1].

Application of various Oriental Mustard-Allyl isothiocyanate compounds to suppress Soybean Cyst Nematodes in Ontario.

Oriental Mustard (OM) seed is grown in western Canada and is processed in several areas of the country primarily for confectionary spice products. Products of OM seed processing are mustard oil, ground mustard flour and bran. OM by-products of oil, bran and seed coats contain various forms of allyl isothiocyanate (AITC) that may range in concentrations of 0.01-2 %. Several OM materials such as pelleted formulations and ground bran composed of ground seed coat, crushed seed and residual oils were tested on 1.25 m^-3 field micro-plots infested with Soybean Cyst Nematodes (SCN) Heterodera glycines from 2008-11. Micro-plots were established in 1994 in a field of Harrow Fox sandy loam, cultured with fallow, corn, soybean rotations with the occasional non-host crop to develop moderate-high populations of SCN cysts and eggs. In 2008 various rates of pelleted OM were applied, incorporated and watered as required to create good dissolving conditions for the material. In 2009 – 2011, OM ground bran was incorporated and plots were watered either with irrigation or natural rainfall to dissolve the material. The 2008 pelleted material contained a range of 1-1.5%, 2009 ground bran had 0.2-0.9% AITC and 2010-11 ground bran contained double the AITC concentration as compared to the 2009 bran. Soybeans resistant to SCN were planted in a uniform spaced pattern each year. Plant measurements were taken as required. Micro-plots were soil sampled for SCN cysts prior to OM application, mid-season and late fall. Cysts and eggs were extracted and processed for counting. Across the 4 years of micro-plot trials, results indicated considerable variation between types of OM materials, applied rates and concentrations of AITC. In general, SCN egg populations were not consistently suppressed by the Oriental Mustard products. Details of the impact of OM products and concentrations on SCN populations will be presented.

1 - Agriculture and Agri-Food Canada, Science and Technology, 2585 County Rd 20, Harrow, ON, N0R 1G0

Keywords:
mustard
allyl isothiocyanate
Soybean Cyst Nematode
Heterodera glycines.

Presentation Type: Recent Topics Poster
Session: P
Location: Hall D/The Shaw Conference Centre
Date: Monday, July 27th, 2015
Time: 5:30 PM
Number: PRT061
Abstract ID:1876
Candidate for Awards:None