Invigor varieties more susceptible to aster yellows

[MBgrower]

In S Manitoba last summer, it seemed the Invigor varieties showed more aster yellow damage vs neighbouring fields of clearfied and RR varieties. I only planted Invigors, so hard to tell yield differences at the local level as coffee row seems to skew yields.

Any thoughts?

[furrowtickler]

One thought could be earlier vigour /brighter color flower that is more atractive earlier in season that attracts leaf hoppers?? seen the same thing here as well.

[$short]

Ours was worse in the rr varieties.

The invigors had less aster yellow than both of the
rr varieties we had.

[MBgrower]

I dont think it was the flowers as the leaf hoppers arrived prior to flowering.

Crop staging may have played a part, in that more advanced fields seemed to have been more severely infected. Late seeded canola had less symptoms. However I still say the invigors looked worse.

Anyway more soybeans this year, less canola.

[wd9]

OMG Furrowtickler, you sound as bad as
those pathetic arrogant Bayer ads!

[ado089]

I wouldn't jump all over furrow. Staging
has alot to do with any pest. I saw the
same thing with harvest wheat in
Southern Alberta a few years back.
Compared to superb it got hammered with
ergot so most people quit growing it the
following year. Guess what? It's back to
the top selling wheat in Alberta. Making
snap decisions based on one year of
undesirable results when there is a long
term positive track record is the
dumbest thing you can do in farming.
Aster yellows is not a new thing, it's
been here forever, just everything
clicked last year for it to be a big
problem.