Sclerotina alert....

[wd9]

Two things. If the S varieties were the
answer, we'd all be growing them.

What we need are traps, like insect
ones, to accurately determine via PCR if
spores are an issue. Like you furrow, I
need to be able to detect that 1 or 2 in
10 and use fact to determine thresholds
and spray accordingly.

So lobby the provincial canola
organizations to make this happen. It'll
go a long way to making spray decisions
much easier.

[furrowtickler]

Sclerotina canola will be the answer, IMO, time will tell. No diff than blackleg resistance. Have you tried one yet, side by side? I could not get that link to work. I have seen almost all data from everyone. This year's set up was a no brainer for us. The table was set at end of May and early June and dinner was served in early July - in this area. Now the heartburn is hitting hard. For me the piece of mind is huge knowing that there is a much much higher level of tolerence in the crop I grow. That is why we also grow Goodeve mige tolerant. Woundering weather to spray or not is more stressfull than actualy doing it, and far less expensive not to worry at all. I disagree with you on one thing, that if scerotina levels are high you have to spray anyway that is b/s. Right now the S52 has less than 5% infection and we have Liberty and r/r in checks with over 30%. Take the loss and price , no other time in my career has a tough decision been so easy. Still hurts to write the check, but seeing control levels in the S52 and sprayed canola i know the payoff will be at least tripple. Never did say anywhere S52 was the rock star but we have seen 60 two years ago and this year it is looking good so far. Still a long way to go though with storms every 3rd night.

[wd9]

Peace of mind is important too.
Schlerotinia resistance is a tough nut to
crack and will be quite a while for
products to appear. True resistance that
is.

[Ronski]

With $14 canola, it was $12 for product
without bundling. $20 total including
custom application and for the cost of 1.5
bushels I have done my best (not a new
premium product but even that would have
cost 2 bushels/acre).
Lets me sleep a bit easier.

[SASKFARMER3]

Boys this years canola had environmental factors
that are taking yield and theirs ps all you could
have done.
1 st aster yellows, nothing controls it's like ergot.
2 heat at flowering probably did more damage
than anything. Full flower in 30 plus temps.
Flower blast happens after 28
3 wet muddy spring to seed in.
4 some new varietys aren't worth jack shit.
5 mother nature wins all the time.

[SASKFARMER3]

And sclerotina is also their.

[fjlip]

Mother Nature playing the wind, rain and hail cards all of July in our area.

[Potashprincess]

well said furrowtickler, the varieties are good yielding and they offer considerable control of sclerotinia...In 2011 we actually couldn't get to some fields because of wet weather and staging, at least with S varieties you are proctected to a considerable level.

[Potashprincess]

Wdg, there is so such thing as 100% resistance as in the case of blackleg...but if it makes you feel better they can call a 80% sclerotinia tolerant "resistant" in the future to mimic the blackeleg rating system.

[wd9]

Never said 100%, said resistant.

Perhaps some definitions would help.

With respect to a disease-susceptible
plant,

disease resistance: a reduction of
pathogen growth on or in the plant.

disease tolerance: are plants that have
less disease damage despite similar
levels of pathogen growth.

For example, RR canola is tolerant, not
resistant to glyphosate.

Pathology is not an easy topic. And also
not one for a marketing discussion forum
LOL.

[Potashprincess]

Meant to say "no such thing" oops

[furrowtickler]

Whatever the definition is or should be I know for a fact that the disease resistance or tolerance is real and working as advertised. Like you said wd9 , and I agree , the weigh wagon and final results will tell.
All i know, is that right now in this area and probably many others, the sclerotina infection levels are the highest I've ever seen . We were all warned, and conditions were more favorable than in recent memory. Some areas though, it was near impossible to get out to spray due to consistant wet conditions, and some crop was not worth spraying at the time.

[wd9]

Lets not let science and definitions get
in the way of a good discussion.

I eagerly await your weigh wagon results.

[wd9]

Oh and one quick question. Where you are about to use the weigh wagon, are they strip and or replicated trials on the same land seeded the same day, sprayed the same day, swathed with full header the same way, harvested the same way with the same combine treated exactly the same following good protocol? Not on different fields or opposite ends of fields or different farmers and equipment? But side by side fairly?