Control Sclerotinia for exceptional yield performance
Sclerotinia can wreak havoc on your bottom line. Even more alarming? Sclerotinia can remain relatively undetected for long periods of time and once it becomes visible – it’s already too late.
Infection in canola occurs primarily at flowering from air-borne ascospores which infect blossoms during periods of extended wetness.
- Appears as a soft, watery rot
- Premature ripening
- Pale grey or white lesions on stems, branches, pods
- Straw-coloured plants
- Frequent lodging and shattering at swathing
- Premature death and ripening is the problem with this disease
Infection can result in:
- Decreased yield potential
- Death of plant before seed development
- Uneven seed maturation
- Underdeveloped seed pods
- Reduced seed weight
- Increased risk of losses in swath
The loss of crop by this disease is often overlooked. The economic implication of sclerotinia is significant when you do the math.
Yield loss potential:
(Yield x Infection Rate) x 50%* = Yield Loss Potential
Calculation example for 40 bu./ac. yield with 30% infection rate and 50% estimated yield loss*:
(40 x 0.3) x 0.5 = 6 bu./ac. yield loss potential
*Yield loss is half of infection rate
Want to calculate your potential ROI? Click here to use our Fungicide ROI calculator.
Key Challenges with Sclerotinia:
- A key difficulty in managing sclerotinia is the variability in its prevalence and severity from year to year, region to region and field to field
- Prevalence has a direct correlation to above-average moisture
- Even after infection, the severity of symptoms and the effect on yield will vary according to temperature, rainfall, crop density and especially the crop stage at the time of infection
- Regular rains or high humidity a couple weeks before and during flowering generally result in sclerotinia infection. If these conditions continue after flowering, severity of the disease will be high and yield loss will be significant.