Savannah

Manufacturer
Rotam Agrochemical
Category
Fungicides
Registered until
2026-02-28
Registration number
18373
Active materials

DIRECTIONS FOR USE
SAVANNAH is recommended for control wide range of diseases on winter and spring sown cereals, oilseed rape, field beans, cabbages, carrots, horseradish, leeks, linseed, parsnips, swedes and turnips.
For best disease control and yield benefit SAVANNAH should be applied at an early stage of disease development, before infection spreads to new crop growth.

RESISTANCE MANAGEMENT
SAVANNAH contains a triazole fungicide that belongs to the group of De- Methylation Inhibitors (DMI). Repeated applications of DMI products may result or may already have resulted into the occurrence of less sensitive pathogens to DMI fungicides.
Therefore, repeated applications of SAVANNAH alone should not be used on the same crop against a high risk pathogen such as cereal powdery mildew and Septoria leaf blotch. It is important to use the recommended rate. Tank mixtures or alternation with fungicides having a different mode of action (e.g. morpholines) have been shown to protect against the development of
resistant forms of disease. When used in tank mixture, the recommended SAVANNAH rate should be maintained. The possible development of diseases resistant to SAVANNAH cannot be excluded or predicted. Where such resistant strains occur, SAVANNAH is unlikely to give satisfactory control.
Resistance to some DMI fungicides has been identified in Septoria leaf blotch (Septoria tritici) which may seriously affect the performance of some products. For further advice on resistance management in DMI's contact your agronomist or specialist advisor and visit the Fungicide Resistance Action Group (FRAG)-UK website.

DISEASES
Cereals:
Wheat: Septoria Leaf Spot (Septoria tritici), Glume Blotch (Septoria nodorum), Ear disease complex (incl. Fusarium spp, Alternaria and Cladosporium), Yellow Rust (Puccinia striiformis), Brown Rust (Puccinia recondita), Powdery Mildew (Erysiphe graminis).
Barley: Yellow Rust (Puccinia striiformis), Brown Rust (Puccinia hordei), Powdery Mildew (Erysiphegraminis), Leaf Blotch (Rhynchosporium secalis), Net Blotch (Helminthosporium teres).
Rye: Yellow Rust (Puccinia striiformis), Brown Rust (Puccinia recondita), Powdery Mildew (Erysiphe graminis), Leaf Blotch
(Rhynchosporium secalis).
Oats: Crown Rust (Puccinia coronata).
Swedes & Turnips: Powdery Mildew (Erysiphe cruciferarum)
Oilseed rape: Light Leaf Spot (Pyrenopeziza brassicae), Phoma Leaf Spot / Stem Canker (Leptosphaeria maculans), Dark Leaf Spot/Pod Spot (Alternaria brassicae), Sclerotinia Stem Rot (Sclerotinia sclerotiorum), Ringspot (Mycosphaerella brassicicola). Plant growth regulating effect.
Leeks: Rust (Puccinia allii)
Cabbage: Black spot (Alternaria spp.), Light Leaf Spot (Pyrenopeziza brassicae), , Powdery Mildew (Erysiphe cruciferarum), Ringspot (Mycosphaerella brassicicola).
Linseed: Powdery Mildew (Oidium lini), Grey mould (Botrytis cinerea)
Field Beans: Chocolate Spot (Botrytis fabae), Bean rust (Uromyces viciafabae)
Carrots: Blight (Alternaria dauci), Powdery Mildew (Erysiphe heraclei), Sclerotinia (Sclerotinia sclerotiorum)
Horseradish: Black spot (Alternaria spp.)
Parsnips: Powdery mildew (Erysiphe spp.)

APPLICATION
Rate of use
Dose: 1.0 litre per hectare on all named crops
Sprayers should be THOROUGHLY CLEANED before use and filters and jets checked for damage and blockages.
A pressure of 2-3 bar (30-40 psi) is recommended.
Apply as a MEDIUM quality spray (as defined by BCPC).
Boom height and water volume should be adjusted to ensure good coverage of the crop, particularly at later growth stages. In dense crops at later growth stages, higher water volumes should be used as recommended.

CROP SPECIFIC INFORMATION
CEREALS
SAVANNAH may be used on all varieties of winter and spring sown wheat, barley and rye, but ONLY on the following varieties of winter and spring oats:
Winter oat varieties which may be treated with SAVANNAH.
Aintree, Chamois, Craig, Emperor, Gerald, Kynon, Mirabel, Pennal, Solva
Spring oat varieties which may be treated with SAVANNAH
Aberglen, Cabana, Commander, Dula, Melys, Minerva, Rhiannon, Ripon

Dose: 1.0 litre per hectare. Maximum 2 applications per crop
Water Volume
Most crops 100-200 litres/hectare
Dense crops after the first node is detectable up to 250 litres/hectare
Large crops, varieties highly susceptible to disease up to 300 litres/hectare

Wheat: SAVANNAH may be applied at any stage before end of flowering (GS 69).
Barley, rye, and oats: SAVANNAH may be applied at any stage before beginning of flowering (GS 61).

Diseases Controlled - Application Timing
Septoria Leaf Spot (Septoria tritici) and Glume Blotch (Septoria nodorum) (Wheat)
To protect the flag leaf and ear from Septoria tritici and Septoria nodorum apply SAVANNAH from beginning of stem elongation (GS 30) until beginning of flowering (GS 61).
Repeated application may be necessary where there is a high risk of Septoria tritici - see “Resistance management”.
SAVANNAH should be applied when the disease is active, but before it is visible on the upper leaves.
Applications made once foliar symptoms of S. tritici are already present on the upper leaves will be less effective since these symptoms only develop several weeks after initial crop infection has taken place.

Yellow Rust (Puccinia striiformis) and Brown Rust (Puccinia recondita)
(Wheat, barley and rye)
Apply SAVANNAH at the first signs of disease.
Applications made to established infections are likely to be less effective. A second application may be made 2-3 weeks later if reinfection occurs.

Ear Disease Complex (Wheat)
SAVANNAH applied soon after ear emergence can give a good reduction of Fusarium ear blight and a reduction of sooty moulds (Alternaria and Cladosporium) and can result in cleaner, brighter ears.
SAVANNAH applied between early flowering – end of flowering (GS 61-69) gives a good control of Fusarium ear blight. Apply SAVANNAH when conditions for Fusarium infection are favourable.

Powdery Mildew (Erysiphe graminis) (Wheat,barley and rye)
SAVANNAH should be applied at first signs of disease.
When treating established mildew or particularly disease susceptible varieties, improved control can be achieved by adding a half dose of an approved fenpropimorph formulation.
When disease pressure remains high application may be repeated if necessary - see “Resistance management”.

Leaf blotch (Rhynchosporium secalis) (Barley, rye)
For moderate control of leaf blotch. Apply SAVANNAH at the onset of disease.
For effective control of moderate to severe infections a second application may be necessary 2-3 weeks later. On disease susceptible varieties in high risk situations tank mixing SAVANNAH with other products may improve control. See recommendations made under 'Resistance Management'.

Net blotch (Pyrenophora teres) (Barley)
For some control of net blotch. Apply SAVANNAH at the very first signs of disease in spring/early summer.
A second application 2-3 weeks later will give most effective control when conditions remain favourable for disease development. See recommendations made under 'Resistance Management'. When disease develops after flag leaf emergence a single application of SAVANNAH will generally provide good protection.

Crown Rust (Puccinia coronata) (Oats)
Apply SAVANNAH on first appearance of crown rust.

FACTORS AFFECTING CROP SAFETY
Occasionally, after the application of SAVANNAH, some transient leaf speckling on wheat or leaf reddening/scorch on oats may occur, but these symptoms have not been shown to adversely affect yield responses accruing from the benefits of disease control.

OILSEED RAPE
SAVANNAH may be used on all varieties of winter or spring sown oilseed rape.
Dose: 1.0 litre per hectare. Maximum 2 applications per crop
SAVANNAH should be applied in 100-400 L/ha of water, using the higher volume in dense crops.
SAVANNAH may be applied at any time up to and including full flowering (GS 69) or not less than 56 days before harvest.

Diseases Controlled
Phoma Leaf Spot/Stem Canker (Leptosphaeria maculans)
Leaf spot can be found from October onwards and best control of stem canker may be expected from an autumn application (GS 14-18) applied at first signs of disease, followed by an application late winter/early spring (GS 39-65). SAVANNAH programmes applied against light leaf spot will also give a good reduction of leaf spot/stem canker.

Light Leaf Spot (Pyrenopeziza brassicae)
Light leaf spot can be found in early spring / summer. Apply SAVANNAH as from onset of stem extension at 1.0 L/ha.

Dark Leaf/Pod Spot (Alternaria spp)
Treatment with 1.0 L/ha SAVANNAH should begin at the onset of disease i.e. when black pinhead spots first appear on the pods. Apply SAVANNAH around full flowering (GS 65).

Sclerotinia Stem Rot (Sclerotinia sclerotiorum)
1.0 L/ha of SAVANNAH applied at early to full flowering (GS61-65) will give some reduction of Sclerotinia stem rot.

Ringspot (Mycosphaerella brassicicola)
Spring/summer applications of SAVANNAH at crop stage 9 or more extended internodes to first petals visible (GS 39-55) may also give some reduction of this disease.

Plant Growth Regulation.
To protect oilseed rape plants from crop damage in periods of low temperatures and frost during winter, apply SAVANNAH as from 4-leaf stage to 8 leaf stage (GS 14-18) in autumn at 1.0 L/ha. Application should be made only in those crops with a risk of excessive crop growth in late autumn. The growth regulating effect is dependent on crop growing conditions and oilseed
rape variety.
To improve on crop stability and decrease risk of premature lodging of oilseed rape, apply SAVANNAH in autumn (GS 14-18) and early spring (GS 30-39), both at 1.0 L/ha. Application should only be made on vigorously growing crops with a risk to lodging.

FIELD BEANS
Dose: 1.0 litre per hectare. Maximum 2 applications per crop
SAVANNAH should be applied in 200-600 L/ha of water, using the higher volume in dense crops.
SAVANNAH must not be applied less than 35 days before harvest.

Diseases Controlled - Application Timing
Chocolate Spot (Botrytis fabae) and Bean Rust (Uromyces fabae)
SAVANNAH should be applied at first signs of disease as from the early flower stage (GS 61), and repeated 3-4 weeks later (individual beans visible inside pods (GS 79), will give control of both diseases.

CARROTS, PARSNIPS AND HORSERADISH
Dose: 1.0 litre per hectare. Maximum 3 applications per crop
Apply in 400-600 litres of water/ha.
Good cover of the foliage is vital; use the higher volume in dense or well grown crops.
SAVANNAH must not be applied less than 21 days before harvest.

Diseases Controlled - Application Timing
Alternaria spp (Carrots and horseradish)
To reduce Alternaria infection on the leaves begin a programme of SAVANNAH sprays with an application in early/mid-August, or when first signs of disease appear on the foliage always after crop stage GS 40. Up to 2 further applications may be made at 3-week intervals.

Powdery Mildew (Carrots, parsnips)
SAVANNAH gives a useful reduction of powdery mildew if applied when the disease is first seen in the crop, but applied after crop stage GS 40. Up to two follow-up applications may be made if necessary, at 14-21 day intervals.

Sclerotinia (Carrots)
A programme of SAVANNAH sprays applied against Alternaria spp can also provide a useful reduction in Sclerotinia infection.

SWEDES AND TURNIPS
Dose: 1.0 litre per hectare. Maximum 2 applications per crop
SAVANNAH should be applied in 200-600 L/ha of water, using the higher volume in dense crops.
SAVANNAH must not be applied less than 35 days before harvest.
Consult processor before using SAVANNAH.

Diseases Controlled - Application Timing
Powdery Mildew (Erysiphe cruciferarum)
Application of SAVANNAH at first signs of disease will give good control.
However, do not apply SAVANNAH before a root diameter of 2.5 cm has been reached.
In situations of very early disease development and extended infection pressure, a second application may be necessary.

LINSEED
Dose: 1.0 litre per hectare. Maximum 2 applications per crop
SAVANNAH should be applied in 100-400 L/ha of water, using the higher volume in dense crops.
SAVANNAH may be applied at any time before brown capsule stage or 35 days before harvest whichever is sooner.

Diseases Controlled - Application Timing
Powdery Mildew (Oidium lini)
SAVANNAH applied at first signs of disease will give control.

Grey mould (Botrytis cinerea)
SAVANNAH applied at first signs of disease can give a reduction in this
disease.

LEEKS
Dose: 1.0 litre per hectare. Maximum 3 applications per crop
SAVANNAH should be applied in 400-600 L/ha of water, using the higher volume in dense crops.
SAVANNAH must not be applied less than 14 days before harvest.

Diseases Controlled - Application Timing
Rust (Puccinia allii)
Apply SAVANNAH at 1.0 L/ha at first signs of disease; this usually occurs during warm, humid weather from August onwards. Up to 2 further applications at 14-21 day intervals may be made if weather conditions favour disease development.

CABBAGES
Dose: 1.0 litre per hectare. Maximum 3 applications per crop
SAVANNAH should be applied in 200-600 L/ha of water, using the higher volume in dense crops.
SAVANNAH must not be applied less than 21 days before harvest.
Consult processor before using SAVANNAH.

Diseases Controlled - Application Timing
Black spot (Alternaria spp), Light Leaf Spot (Pyrenopeziza brassicae), Powdery Mildew (Erysiphe cruciferarum) & Ringspot (Mycosphaerella brassicicola).
A programme of 3 sprays of SAVANNAH at 0.5 L/ha at 21-28 day intervals will give good control of all four diseases.
Best results will be obtained when spraying begins at first signs of disease, but SAVANNAH should not be applied before the beginning of cabbage heart formation.
Where Ringspot has become established the first spray may be applied at up to 1.0 litre/ha and can improve activity; subsequent applications may be required to maintain control but the maximum total dose of 3.0 L/ha per crop must not be exceeded.

COMPATIBILITY
SAVANNAH may be applied as a tank-mix with a range of products. Contact Rotam Europe Ltd or distributor for compatibility information on specific tankmixes. Requirements and restrictions on all tank-mixed products labels must be adhered to when using in tank mixture.

MIXING
Thoroughly shake the pack before use. Add the required quantity of SAVANNAH to the half-filled spray tank with the agitation system in operation and then fill to the required level. Continue agitation at all times during spraying and stoppages until the tank is completely empty. Spray immediately after mixing. Where tank mixes are used SAVANNAH should be added to the
spray tank last, after first dispersing the other product(s), unless otherwise specified - see 'Compatibility' sections under individual crops.
On emptying the container, RINSE CONTAINER THROUGHLY by using an integrated pressure rinsing device or manually rinsing three times. Add washings to sprayer at time of filling and dispose of container safely.

HARVEST INTERVAL
Before grain milky rape stage or 35 days before harvest for wheat, barley, rye and oats.
Before most seeds are green – brown mottled or 56 days before harvest.for oilseed rape.
Not less than 14 days before harvest for leeks;
Not less than 21 days before harvest for cabbages, carrots, parsnips and horseradish;
Not less than 35 days before harvest for field beans, swedes and turnips;
At any time before brown capsule stage or 35 days before harvest whichever is sooner for linseed.

 

Registered for culturesRatePreharvest Interval
Winter wheat1 l
Spring wheat1 l
Spring barley1 l
Winter barley1 l
Spring oats1 l
Winter oats1 l
Winter rye1 l
Spring rye1 l
Winter rape1 l
Spring rape1 l
Beans1 l35
Rutabagas1 l35
Turnips1 l35
Leeks1 l14
Cabbage1 l21
Winter flax1 l35
Spring flax1 l35
Carrots1 l21
Parsnip1 l21
Horseradish1 l21