No compromises in weed
control in sugar beetWhitepaper

NO COMPROMISES IN WEED CONTROLIN SUGAR BEET

NO COMPROMISES IN WEED CONTROLIN SUGAR BEET

(Dr. Robert Heinkel, Lechler GmbH)(Dr. Robert Heinkel, Lechler GmbH)The basis for an economical and efficient cultivationof sugar beet is, among
others, the effective control of weeds and grasses.
In addition to maize, sugar
beet is one of the field
crops that cannot begrown successfully without efficient weed control.

The past years haveshown again and againthat weeds that were notsufficiently combated atthe 1st herbicide treatment
are usually controlled
poorly with the subsequent herbicide applications or only with higher
application rates. The

insufficiently controlledweeds often lead to late
weeding and as a result
to firefighting measures,
which are partly unjustifiable by the poor efficacy
and the costs. In addition
to the selection of theherbicides and the scheduling of the application,

the recommendation is tocarry out the herbicide
applications in themorning and evening
hours.

Advantages of IDKT and IDTA twin air-injector nozzles
Optimal deposition tovertical target surfaces,
e.g. grasses

Increase of forward speed and thus more hectares
without reducing the biological efficacy

Reduction of sprayshadows
 on weeds covered by thecrop
 on cloddy soils
 on mulch seeding

Local treatment

Agrotop TD-HiSpeed 110–03
8.3 bar: 16.0 km/h

Optimum nozzle selection
The right nozzle selection is
an important component inherbicide management. An
optimized storage and covering of the still small weed or
grass stages is best achieved
via double flat fan nozzles.
The IDKT nozzle series offers
the best conditions in termsof deposition and biologicalefficacy. The angled trajectoryof the droplets in the directionof travel forwards and backwards improves the deposition to vertical target surfaces
and effectively reduces sprayshadow.

of a nozzle becomes finer.
However, the application isoften a compromise incompliance with weather
conditions and the rules ofuse.
Ideally, the pressure range for
the IDKT should be in therange around 3 bar, with theIDTA around 5 bar. The
recommended pressure
ranges are 1.5 – 3 bar for theIDKT and 4 – 8 bar for theIDTA.

The droplet spectrum of anozzle has a great influenceon the degree of coverage.
In particular, good coveragemust be ensured when
applying contact activeingredients.
In general, as pressure increases, the droplet spectrum

Suspensionspräparate

The nozzle sizes -02 to -06 of
the IDKT series have a drift
reduction of 90% in thepressure range of 1.5 and 1
bar respectively. The asymmetrical IDTA double flat jet
nozzle is recommended forhigher driving speeds andthus more impact in morehectares. A LERAP 4star
rating in UK is alreadyavailable.

Despite the good formulationof the sugar beet herbicides,
special attention should be
paid to the safe operation of
the nozzles when using
suspension formulations. In
addition to the correctfiltering, attention must be
taken to ensure appropriate
nozzle care and cleaning.

TeeJetAIXR 110–05
3.0 bar: 16.0 km/h

Lechler IDK Twin 120–03
4.7 bar: 12.0 km/h

Optimal coverage ofcontact active ingredients
The droplet spectrum isfiner up to a droplet sizeclass compared to thenormal air-injector flat fan
nozzle of the same design.

Straw mulch in sugar beets

Agrotop AirMix NoDrift 110–03
4.7 bar: 12.0 km/h

Teejet TTI 110–02
5.0 bar: 8.0 km/h

Lechler IDK Twin 120–025
3.0 bar: 8.0 km/h

Sowing in mulch seed

Effect in percent
Versatile goose footReal chamomile

Drop rape
White goose footEffect of new nozzle types at increased driving speeds and a water consumption of150 l/ha each. Trials in Baden-Württemberg, Germany.
Source: Schenk by PSD Baden-Württemberg, Germany

These advantages are particularly useful under mulchseeding conditions and the2nd and 3rd herbicide application, when the sugar beetleaves produce sprayshadows on weeds underneath.
Droplet spectrum anddegree of coverage

Drift reduction

Image source: https://bisz.suedzucker.
de/pflanzenschutz/ungraeser/ackerfuchsschwanz

Cloddy soil in sugar beets

Sugar beet: Herbicidal activity at higher speeds

LiquidSource graphic: DLG-Mitteilungen 02/2009 (DLG Messages Magazine)

LiquidInjector

Nozzle body
Air

Injector

Nozzle body

Air

Please find detailed product information and further information here:
IDKT nozzle
Production formationen atwww.lechler-agri.com/products/idkt
30°

50°

30°

IDTA nozzle
Production formationen atwww.lechler-agri.com/products/idta

30°
Direction of travel

Direction of travel

Entries for drift-and-loss-reducing recognized Lechler nozzles
Current list at www.lechler-agri.com/driftandlossreducingtechnologies
Nozzle recommendations in sugar beet
Current recommendation atwww.lechler-agri.com/nozzlerecommendation-sugarbeet
Recommendation for correct nozzle cleaning
www.lechler-agri.com/recommendation-nozzlecleaning

AppleAndroid
Nozzle calculator app

Schematic view of the double flat spray arrangement of IDTA (left) and IDKT air injector twin nozzles.

www.lechler-agri.com
Lechler GmbH · Agricultural Nozzles and Accessories
P.O. Box 13 23 · 72544 Metzingen, Germany · Phone +49 7123 962-0 · Fax +49 7123 962-480 · info@lechler.com · www.lechler-agri.com

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