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crown rot level

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Catalogue: GRDC Final Reports
A disease control model for crown rot in Victoria and South Australia (SA) which provides crop management recommendations to reduce the build-up of Fusarium inoculum and avoid sowing into high disease risk situations... Crown rot is highly spatially variable, so intensive and extensive sampling programs were undertaken to assess the the reliability of results produced using current sampling protocols... Intensive stubble and soil sampling was used to assess the scale of spatial variability of crown rot and whether taking soil cores in a row crop was causing "spikes" in results...
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Catalogue: GRDC Final Reports
Crown rot caused by Fusarium pseudograminearum affects all cereals, but durum crops are particularly susceptible... Closed canopy break crops and fallow are most effective at reducing crown rot... Expertise and results from DAS00032 are being used to assist in developing a pilot spreadsheet...
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Catalogue: GRDC YouTube channel
" GRDC Grains Research Updates 5-6 March 2013, Northern Region, Goondiwindi QLD. Rob Long 24 September 2013 Rob Long, Crown Rot Ananlytical Services, talks about testing crown rot levels for better decisions... In 2007-2009 NGA ran a series of trials across the NW NSW to assess the impact of Crown Rot on winter cereal yields... In 2011 and 2012 Crown Analytical Services, in collaboration with AGT Seeds, Longreach Plant Breeders and Heritage Seeds, replicated this trial methodology to screen selected current and future cultivars for yield performance in the presence of a known amount of Crown Rot inoculum...
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Catalogue: GRDC Factsheets
Three top tips to stop crown rot: rotate crops, observe plants for browning at the base of tillers and test stubble and soil... Reducing the risk before planting Reducing inoculum is vital to managing crown rot... Unfortunately cultivation spreads infected residues, which may increase plant infection rates counteracting any benefits from increased residue breakdown...
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Catalogue: GRDC Factsheets
Assess crown rot risk in paddocks by checking crops for browning of the stem base or by taking soil and stubble samples for analysis... Key messages for crown rot in cereals keeping crown rot inoculum at low levels is by far the most effective way to reduce yield loss from this disease... About the crown rot disease: T his fungal disease is hosted by all winter cereals and many grassy weeds; C rown rot survives for many years in infected plant residues and infection can occur when plants come in close contact with those residues; H igh cereal intensity and inclusion of durum wheat in cropping programs are factors which increase crown rot levels; M ajor yield losses occur when disease levels are high and there is moisture stress during grain fill...
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Catalogue: GRDC Factsheets
Assess crown rot risk in paddocks by checking crops for browning of the stem base or by taking soil and stubble samples for analysis... Key messages for crown rot in cereals keeping crown rot inoculum at low levels is by far the most effective way to reduce yield loss from this disease... About the crown rot disease: T his fungal disease is hosted by all winter cereals and many grassy weeds; C rown rot survives for many years in infected plant residues and infection can occur when plants come in close contact with those residues; H igh cereal intensity and inclusion of durum wheat in cropping programs are factors which increase crown rot levels; M ajor yield losses occur when disease levels are high and there is moisture stress during grain fill...
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Catalogue: GRDC Factsheets
Assess crown rot risk in paddocks by checking crops for browning of the stem base or by taking soil and stubble samples for analysis... Key messages for crown rot in cereals keeping crown rot inoculum at low levels is by far the most effective way to reduce yield loss from this disease... About the crown rot disease: T his fungal disease is hosted by all winter cereals and many grassy weeds; C rown rot survives for many years in infected plant residues and infection can occur when plants come in close contact with those residues; H igh cereal intensity and inclusion of durum wheat in cropping programs are factors which increase crown rot levels; M ajor yield losses occur when disease levels are high and there is moisture stress during grain fill...
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Catalogue: Ground Cover
Inter-row sowing can slow crown rot build-up.. Dr Simpfendorfer says the results showed that sowing between the previous cereal rows reduced the incidence of plants infected with the crown rot pathogen F. pseudograminearum by 45 per cent and the severity of disease by 51 per cent across sites and various winter cereals ( Figure 1 )... Although inter-row sowing reduced the severity and incidence of crown rot in bread wheat, barley and durum varieties, the results showed it was slightly less effective at reducing crown rot severity in barley (average 34 per cent) compared with bread wheat (43 per cent) and durum (52 per cent) ( Figure 1 )...
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Catalogue: Ground Cover
Inter-row sowing can slow crown rot build-up.. Dr Simpfendorfer says the results showed that sowing between the previous cereal rows reduced the incidence of plants infected with the crown rot pathogen F. pseudograminearum by 45 per cent and the severity of disease by 51 per cent across sites and various winter cereals ( Figure 1 )... Although inter-row sowing reduced the severity and incidence of crown rot in bread wheat, barley and durum varieties, the results showed it was slightly less effective at reducing crown rot severity in barley (average 34 per cent) compared with bread wheat (43 per cent) and durum (52 per cent) ( Figure 1 )...
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Catalogue: GRDC Updates
Sustainable management of most cereal diseases can be achieved by avoiding susceptible and very susceptible cultivars... A graphical representation of the relative effect of increasing pre-sowing crown rot inoculum levels, as determined using PredictaB, on grain yield loss (%) in three cereals in seasons with below average combined September and October rainfall (left) and above average rainfall for the same period (right) using 26 data sets collected in Victoria and South Australia during the years 2005 to 2010 (Hollaway et al. 2013)... There will be a greater need to monitor and apply foliar fungicides in wetter seasons...
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