Syngenta Summer Autumn Guide 2020 - Page 47



WHAT ARE YOUR OPTIONS WITHOUT CHLOROTHALONIL?
WHEAT:
BARLEY:
• Grow varieties with good Septoria
resistance (>6)
• Manage stress in the crop with good
nutrition programmes
• Consider drilling dates, later drilling
generally reduces Septoria risk
• Consider your variety and assess
Ramularia pressure according to region
and location
• Use alternative multi-sites in the
programme such as folpet in conjunction
with SDHIs and triazoles including newer
actives
• Introduce multi-sites such as folpet into
your spray programme
THE YIELD ROBBING DISEASE: YELLOW RUST
Yellow rust can be unpredictable and appear quickly, especially with
continual evolution in races. As most varieties do not have seedling
resistance, yellow rust can appear early in the season and should be
considered in your disease management programme to prevent irreversible
yield losses.
WHAT ARE YOUR OPTIONS?
•Following the loss of epoxiconazole, tebuconazole is now one of the few
remaining triazoles which are highly effective against active yellow rust.
•If yellow rust is expected but not yet active, a strobilurin such as
AMISTAR® will give good protection at T0.
BUT WHAT ABOUT SDHI'S?
ACTIONS
OW YOU CAN
H
REDUCE THE RISK
OF YELLOW RUST
• Choose a resistant variety
• It’s critical to spray at T0 if
active yellow rust is seen
• Use a rust active SDHI at T1
such as ELATUS Era
• Control volunteer cereals to
prevent rust spreading
• Grow a mixture of varieties
ALWAYS REMEMBER…
WHEN YOU SEE IT, SPRAY IT!
•There are clear differences in SDHI activity on rust with Solatenol being the
most effective.
• ELATUS Era can be used in your spray programme at T1 to provide great
control for yellow rust in winter wheat.
DON'T FORGET ABOUT BROWN RUST...
rown rust poses a threat mid to late season
B
when the temperature rises.
Many varieties have low resistance so using
an SDHI in your programme is recommended.
ELATUS Era shows the best results on brown
rust and fits well at T2 timing.
47

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