Sugar Beet

Optimising Growth & yield in Sugar Beet
Optimising Growth & Yield in Sugar Beet

At Syngenta, we're committed to helping growers achieve successful and sustainable sugar beet yields. That's why we offer a range of innovative solutions to help you manage your crop effectively. Whether it's protecting against heat stress, aphid damage, or fungal disease, we have the products and expertise to help you!

The Season so far

  • Wet March has delayed drilling and establishment
  • Potential for yield impact on late drilled crops
  • Early aphid migration into backward crops could increase virus infection

Agronomic advice

  • Assess crops at higher risk of virus infection
  • Reduce crop stress to ensure continuous crop growth
  • Optimise disease control to retain green leaf area and yield building throughout the season

Product Application Timeline

Product Application timeline

Optimise growth with...


Download our 2024 Technical Update for Syngenta sugar beet products


Virus yellows and aphid control

Viruses have the potential to reduce crop yields by up to 40% with early infection having the biggest impact. Rothamsted Insect Survey shoes that Peach potato aphid migration started in mid-March, putting newly emerged crops at high risk early on.

  • Crops treated with CRUISER® SB under Emergency Authorisation, will have protection for up to 6 weeks and so should not require further aphicide if beyond the 12 leaf stage.  If treatment is needed the first aphicide should be from another mode of action (MOA) such as Afinto®.
  • Crops not treated with CRUISER® SB could be at risk very soon.  Apply Afinto when wingless aphids are found.  Afinto will give control of resistant Peach potato aphid.
MAPP No: 19622
Active ingredient: 500 g/kg flonicamid
Crops: Sugar beet and fodder beet
Rate of Use:  0.14 kg/ha
Number of applications: 1 application
Latest application timing:
60 days before harvest

Peach Potato Aphid Control

Peach Potato Aphid Control

Average of 6 trials in 2022 (DE,FR,UK)

AFINTO delivers

QUANTIS™ – reduce crop stress, maintain growth and build optimum yield

Independent research has shown QUANTIS can counter the effects of crop stress that can
reduce yield and sugar content. Heat stress can stop crops growing, reducing yield
and potential.
Using QUANTIS before high temperatures are forecast will minimise the
effect of stress and get your crop growing again. For optimum timing use the QUANTIS heat
stress tool.

Sugar Beet

Priming sugar beet with QUANTIS before stress event improves final yield

Average of 6 trials

Sugar Beet

When to use QUANTIS?

New research for 2022 revealed highest returns of yield and sugar content with an
application of QUANTIS before the first heat stress event. Maintain applications as
repeated stress events occur.

Applications in sugar beet from the time of crop cover (GS31), when the tap root begins
to expand, have been shown to be effective at reducing the effects of stress and
enabling sugars to be better transported to roots.

Apply QUANTIS at the rate of 2.0 l/ha prior to a stress event.

Register on Syngenta's new myFIELD app to receive up to 14 days advance warning of local heat stress events and crop risks.



To reduce effects of abiotic stress
in sugar beet

Crops treated: Sugar beet
Rate of use: 2.0 l/ha
Number of applications:
Up to 3 applications, when stress periods occur
Treatment timing:

  • Ahead of first heat stress event
  • Use the Syngenta Heat Stress Event forecast to time applications
  • Repeat application before further heat stress events

Tank mix:
with fungicides if applicable


Introducing myFIELD

A free app from Syngenta that provides decision-making tools, product support and rewards in one place. It includes the QUANTISTM Heat Stress Alert feature and allows users to add their fields using the integrated Google Maps tool. Available on iPhone and android.

Watch the video for more information.


Download now from...

Priori Gold

PRIORI® Gold – first choice for sugar beet disease control

With late drilled crops in 2023, don’t let green leaf area loss and disease reduce your crops yield potential. Use PRIORI Gold at first signs of disease to maintain a healthy canopy and bulking for as long as possible.

Disease control + green leaf retention

Combination of strobilurin + triazole actives in one, for better disease control + built-in resistance management.

PRIORI Gold is effective on all UK diseases - rust, powdery mildew, Cercospora and

Rust Powdery Mildew Cercospora Ramularia
Rust Powdery Mildew Cercospora Ramularia

July onwards


Damp conditions and temperatures between 15–22°C. Varietal susceptibility


Up to 10–14% yield reduction

July to early autumn


Mild winters, dry and warm conditions. Varietal susceptibility


Early infections can reduce yields by up to 20%

Mid July to October


Warm wet weather, with temperatures above 25°C. No resistant varieties


Increasing problem in the UK. Losses can exceed 50%

Mid to late autumn


Cooler temperatures (17–20°C) and wet conditions


Usually very low
***** ***** *** *****
Autumn growth can account for up to 40% of yield potential, so foliar disease
control is critical to maximise grower return.

Source: British Sugar


Outstanding performer in 2022 over 75% control of rust – the best available

Priori Gold

Trial: Coningsby, Lincolnshire 2022.

Priori Gold

For control of foliar diseases in sugar beet

MAPP No: 19226

Active ingredients: 125 g/l azoxystrobin + 125 g/l difenoconazole

Crops:Sugar beet, fodder beet

Rate of use: 1.0 l/ha

Number of applications:

2 applications, minimum of 21-day interval

Latest application timing:

No less than 35 days prior to harvest

Spray Assist

Optimise PRIORI Gold

  • Apply preventatively before disease symptoms appear
  • Assess disease risk conditions to time applications
  • Treat disease susceptible varieties first
  • Use as part of a season-long fungicide programme
  • Download the Syngenta Spray Assist App for optimum application

Unleash the crop’s green leaf potential to drive yield




Trial: Coningsby, Lincolnshire 2022.Pictured eight weeks after treatment

PRIORI Gold provides:

  • Protection against all key sugar beet diseases
  • Built-in resistance management
  • Increased yield and sugar content
  • Early-season disease control
  • Performance proven year-on-year
Hallmark Zeon

Application Advice

Sugar Beet Fungicde Application

Fungicide application in sugar beet. Inset: Twin angled nozzles

  • For early applications (up to 8-12 true leaves), use angled nozzles with a medium to coarse droplet pattern, applying 100 l/ha water volume.
  • With later applications targeting the green leaf canopy, use a coarse droplet nozzle and apply at 200 l/ha water volume to improve foliage penetration and coverage of lower leaves and crown.
  • The use of 90% drift reduction 3D ninety nozzles has been shown to reduce risk of drift and, for sugar beet foliar applications, could deliver more spray to the lower leaves in the canopy. Fit nozzles facing forwards and backwards along the sprayer boom to alternate the angled spray pattern.
  • The angled body of the Syngenta 3D ninety nozzle optimises targeting throughout the canopy, with the very coarse droplet spectrum giving more effective penetration to the crown.
  • Drift reduction nozzles improve the stability of the spray pattern to deliver more consistent leaf coverage of the complete canopy, particularly in sub optimal conditions.

Beet Moth

In 2022, growers saw major issues with Beet moth in some areas. The larva of
this pest burrows into the growing point of the plant, seriously reducing canopy and
root growth. First egg lay has been observed in late May/early June, with further generations 30 to 40 days thereafter in dry and warm weather. It’s thought that heavy irrigation or rainfall will reduce activity.

Use scouting and pheromone traps to help time the control of this difficult pest.


Hallmark Zeon
MAPP No: 12629
Active ingredient: lambda-cyhalothrin
Crops: Sugar Beet
Pests controlled: Flea beetles, Beet leaf miner
and cutworm
Rate of Use:  75 ml/ha
Number of applications: 2
Latest application timing:
8 weeks prior to harvest