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foliar fungicides

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Catalogue: GRDC Updates
In 2013 pod infection was observed in all monitored regions of Victoria... Pod infection will result in seed infection.&nbsp; Infected seeds may die and shrivel and/or cause pod shatter, reducing yield... Even if flower petals are infected, dry conditions or cool wet conditions during petal fall will prevent stem infection development.<strong> <br></strong></li> </ol><h3>Research findings in 2013</h3> <p>In 2013 sclerotinia was observed in all canola producing states it was more severe in North Eastern Victoria, NSW and WA...
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Catalogue: GRDC Media
" Date: 09.12.2013 'Perfect storm' sparks sclerotinia outbreak in canola crops.. " , crops have flowered very early this year due to the mild winter temperatures and this has contributed to the levels of disease we observed," said Mr Lindbeck, who is based at the Wagga Wagga Agricultural Institute where he leads Grains Research and Development Corporation-funded research on the management of pulse and oilseed diseases in southern NSW... Mr Lindbeck said that in addition to sclerotinia being an airborne disease, the sclerotinia stem rot pathogen produced hard, black, survival bodies on infected plant tissue called sclerotia which enabled the fungus to survive for up to 10 years in the field...
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Catalogue: GRDC Factsheets
disease control using fungicides is an economic decision... fungicide timing Factors that influence spray timing recommendations include: growth stage; level of disease; length of the grain fill period; crop yield expectations; whether the region/season is high or low rainfall and if an early seasonal cut-off is expected; the resistance rating of the variety; and the likelihood of disease... Factors to consider in making this decision are: the presence of disease; yield potential; potential loss of yield and quality; commodity prices; and cost of fungicide plus application...
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Catalogue: GRDC Factsheets
disease control using fungicides is an economic decision... Spray if disease threatens key plant parts (flag to flag-2) of varieties that are moderately susceptible (MS) or susceptible (S)... fungicide timing Factors that influence spray timing recommendations include: growth stage; level of disease; length of the grain fill period; crop yield expectations; whether the region/season is high or low rainfall and if an early seasonal cut-off is expected; the resistance rating of the variety; and the likelihood of disease...
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Catalogue: GRDC Media
National canola Sclerotinia surveys have found stem infection levels above 60 per cent in some paddocks in conducive seasons... "But the disease is highly weather sensitive and the crop response will change each year, depending on how the season unfolds - particularly in relation to spring rainfall and timing of spore release," she said... Remotely sensed data from satellite, drones or real time NDVI sensors might allow growers to measure crop biomass and vary fungicidal applications ...
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Catalogue: GRDC Media
Keep an eye on your canola for diseases in 2015.. We want growers to have a fungicide management plan in place for when new actives come onto the market and we are also encouraging growers to change varieties based on resistance groups... Dr Marcroft says at the end of the season, growers should pull some canola plants out of the ground and cut the stem open to see if they have blackleg symptoms...
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Catalogue: GRDC Media
Keep an eye on your canola for diseases in 2015.. We want growers to have a fungicide management plan in place for when new actives come onto the market and we are also encouraging growers to change varieties based on resistance groups... Dr Marcroft says at the end of the season, growers should pull some canola plants out of the ground and cut the stem open to see if they have blackleg symptoms...
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Catalogue: GRDC Factsheets
Correct identification of the cause of plant symptoms is essential, and an understanding of the growth and spread of any pathogen will assist in any decision making... Cultivar resistance is the best protection against fungal diseases... identifying and understanding fungal disease Most diseases that affect cereals are caused by fungi...
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Catalogue: GRDC Media
Plan canola rotations to stop sclerotinia stem rot this season.. Dr Khangura said this was due to seasonal conditions causing overlapping of flowering time and coinciding spore release events with flowering in early and late maturing varieties... Other research into sclerotinia in WA will focus on: determining yield losses from disease; continuing work into the efficacy and profitability of crop management practices and fungicide use and timing; and an ongoing assessment of spore release, petal infection and stem rot levels to improve epidemiological knowledge...
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Catalogue: GRDC Media
Growers will benefit from ongoing research to fine-tune best practice fungicide management for sclerotinia stem rot... Research into the disease over the last 5 years has given farmers and researchers a deeper understanding of the disease and the influence the season can have on its progression... Trials led by the Department of Agriculture and Food (DAFWA) and funded by the Grains Research and Development Corporation (GRDC) have shed more light on the optimum time to apply foliar fungicides...
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