Integrated management of canola diseases using cultural methods

Kharbanda, P. D.; Tewari, J. P.

doi:10.1080/07060669609500642

Cited by 53 publications

(39 citation statements)

References 33 publications

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“…In previous studies, shallow seeding generally improved the seedling emergence of canola (Nuttall 1982) and reduced seedling blight in soil infested with R. solani (Kharbanda and Tewari 1996;Hwang et al 2014). Deep seeding can result in a loss of seedling vigour (Johnston and Stevenson 2001), and less vigorous seedlings are more susceptible to seedling blight caused by R. solani (Hwang et al 2003).…”

Section: Discussionmentioning

confidence: 99%

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Effect of seeding date and depth, seed size and fungicide treatment on Fusarium and Pythium seedling blight of canola

et al. 2015

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Hwang, S. F., Ahmed, H. U., Turnbull, G. D., Gossen, B. D. and Strelkov, S. E. 2015. Effect of seeding date and depth, seed size and fungicide treatment on Fusarium and Pythium seedling blight of canola. Can. J. Plant Sci. 95: 293–301. Seedling blight has a substantial impact on stand establishment and productivity of canola (Brassica napus) on the Canadian prairies. The effects of seeding date, seed size, seeding depth, and seed treatment fungicides on seedling blight of canola caused by Fusarium avenaceum and Pythium ultimum were evaluated under field conditions. In the trials inoculated with P. ultimum, early seeding reduced seedling emergence and seed yield in all 3 yr of the study. However, the interaction of F. avenaceum with seeding date was not consistent; inoculation with F. avenaceum reduced seedling emergence in early seeded canola in 1 of 4 yr, but emergence was higher in early than in mid-seeded treatments in 2 yr and there was no difference among seeding dates in 1 yr. Late seeding reduced seed yield in 2 of 4 yr in the F. avenaceum study. Seed size and seeding depth generally did not have an effect on seedling establishment or seed yield for either pathogen. Seed treatment with Helix Xtra (thiamethoxam+difenconazole+metalaxyl+fludioxonil) and Prosper FX (clothianidin+carboxin+trifloxystrobin+metalaxyl) fungicides increased seedling emergence and yield compared with the F. avenaceum-inoculated control. Seed treatment with Helix Xtra also increased seedling emergence and seed yield compared with the P. ultimum-inoculated control. Manipulation of seeding date did not substantially improve stand establishment or yield of canola when inoculum pressure was high. Seed treatment was the most effective strategy for reducing losses caused by seedling blight of canola in fields infested with F. avenaceum or P. ultimum.

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Section: Discussionmentioning

confidence: 99%

“…Seeding date influences soil temperature and moisture, which in turn affect seedling blight on canola (Kharbanda and Tewari 1996). In western Canada, early seeding coincides with cooler temperatures that favour seedling blight.…”

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Effect of seeding date and depth, seed size and fungicide treatment on Fusarium and Pythium seedling blight of canola

et al. 2015

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“…The development of many plant diseases can be reduced if the growing environment of the host plant is modified so that conditions become unfavourable for the pathogen and more favourable for the host plant (Kharbanda & Teware 1996).…”

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Irrigation, sawdust mulch, and Enhance^®biocide affects soft rot incidence, and flower and tuber production of calla

Wright¹,

Burge

2000

New Zealand Journal of Crop and Horticultural Science

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The incidence and severity of soft rot, flower grades, and tuber yields of calla (Zantedeschia spp.) plants were affected by the quantity of water received during the growing season, sawdust mulch, and Enhance ® biocide applications to tubers before planting. Incidence of plants with soft rot symptoms increased at a relatively constant rate during the season reaching an average for all treatments of 61% at the end of flowering. Irrigated plus mulched callas had 15% less soft rot than the irrigation without mulch or the mulch without irrigation treatments. Yield of tubers was 90% greater from irrigated plants. Dipping tubers in Enhance ® before planting slightly reduced the severity of rotting in harvested tubers from non-irrigated plants. The total number of flowers was not affected by irrigation but was slightly reduced by sawdust mulch. However, the number of long stemmed flowers was increased 41% by irrigation, to over 1.5 per tuber.

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“…S. sclerotiorum is among the most non-specifi c and successful plant pathogens and can attack a wide range of crops including oilseed rape (canola), sunfl ower, fl ax, pea, bean, clover and potato (Morrall & Dueck, 1982). The number of viable sclerotia of S. sclerotiorum in soil was unchanged after three consecutive barley crops following canola (Williams & Stelfox, 1980), suggesting that the four-year rotation between susceptible crops recommended to control sclerotinia stem rot might be ineffective (Kharbanda & Tewari, 1996). In contrast, rotation involving at least three years between canola crops is usually associated with a reduction in severity of blackleg caused by Leptosphaeria maculans (Petrie, 1986).…”

Section: Crop Rotation 223mentioning

confidence: 99%

Managing Crop Disease through Cultural Practices

Walters¹

2009

Disease Control in Crops

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Integrated management of canola diseases using cultural methods

Cited by 53 publications

References 33 publications

Effect of seeding date and depth, seed size and fungicide treatment on Fusarium and Pythium seedling blight of canola

Effect of seeding date and depth, seed size and fungicide treatment on Fusarium and Pythium seedling blight of canola

Irrigation, sawdust mulch, and Enhance^®biocide affects soft rot incidence, and flower and tuber production of calla

Managing Crop Disease through Cultural Practices

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Integrated management of canola diseases using cultural methods

Cited by 53 publications

References 33 publications

Effect of seeding date and depth, seed size and fungicide treatment on Fusarium and Pythium seedling blight of canola

Effect of seeding date and depth, seed size and fungicide treatment on Fusarium and Pythium seedling blight of canola

Irrigation, sawdust mulch, and Enhance®biocide affects soft rot incidence, and flower and tuber production of calla

Managing Crop Disease through Cultural Practices

Contact Info

Product

Resources

About

Irrigation, sawdust mulch, and Enhance^®biocide affects soft rot incidence, and flower and tuber production of calla