CelloPlant Protection Product ComparisonPlant Protection Product ComparisonReport inaccuraciesReport inaccuracies

A fungicide for the control of stem-base, foliar and ear diseases in winter wheat (also reduction of the mycotoxin deoxynivalenol), winter rye, winter and spring barley and oats

WINTER WHEAT, WINTER RYE
Maximum total dose: 2.5 litres poduct per hectare.
Latest time of application: Winter wheat and winter rye: before grain milky ripe stage.

WINTER and SPRING BARLEY, OATS
Maximum total dose: 2.5 litres poduct per hectare.
Latest time of application: Barley and oats: up to beginning of flowering.

CROPS
Cello may be used on all commercial varieties of winter and spring barley, winter and spring oats, winter wheat and winter rye

RATE OF USE
Apply Cello at 1.25 litres per hectare in cereals; the maximum total dose per crop is 2.5 litres per hectare.

APPLICATION
Water volume
Apply Cello in 100-300 litres of water per hectare. The higher spray volumes are recommended where the crop is dense or disease pressure/risk is high to ensure good penetration to the lower leaves and stem bases. Disease control may be compromised by reducing water volumes, where good spray coverage is difficult to achieve. A spray pressure of 2-3 bar is recommended.

Spray quality
Apply as a MEDIUM spray quality (as defined by BCPC).

Latest Permitted Timing
In wheat and rye Cello may be applied at any stage before grain milky ripe stage and in barley and oats up to beginning of flowering.

Mixing
Thoroughly shake the pack before use. Add the required quantity of Cello 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.

General
Sprayers should be thoroughly cleaned with water and detergent after use, and filters and jets checked for damage and blockages. Boom height should be adjusted to ensure even coverage of the crop, particularly at later growth stages. The correct height is one at which the spray from alternate nozzles meets just above the crop, in dense crops, at later growth stages, higher water volumes should be used.

DISEASES CONTROLLED
WHEAT
Eyespot (reduction of the incidence and severity), Septoria (leaf and glume blotch), powdery mildew, yellow rust, brown rust, ear disease complex (Fusarium ear blight* (reduction of deoxynivalenol) and reduction of sooty moulds).

BARLEY
Eyespot, powdery mildew, yellow rust, brown rust, ear disease complex (Fusarium ear blight* and reduction of sooty moulds), Rhynchosporium, net blotch.

RYE
Eyespot (reduction of the incidence and severity), powdery mildew, brown rust, Rhynchosporium.

OATS
Eyespot, crown rust and mildew *CELLO will provide moderate control of these diseases

APPLICATION TIMING
CEREALS
Eyespot (Oculimacula spp.)
Spray in the spring at the first sign of disease, from when the leaf sheaths begin to become erect until the 2nd node is detectable (GS 30-32).

Septoria Leaf Blotch and Glume Blotch (Septoria tritici and Stagonospora nodorum)
Apply before disease is established in the crop. To protect the upper leaves and ear apply Cello at full flag leaf emergence up to mid-flowering (GS 65). Where disease pressure remains high application may be repeated.

Applications to upper leaves where S. tritici symptoms are present are likely to be less effective. Cello contains two DMI fungicides. Resistance to some DMI fungicides has been identified in Septoria leaf blotch (Mycosphaerella graminicola) 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 FRAG-UK website.

Powdery Mildew (Blumeria graminis)
Apply Cello at the first signs of disease. Where disease pressure remains high application may be repeated.

Yellow Rust (Puccinia striiformis)
Apply Cello at the first signs of disease. A second application may be made 2-3 weeks later if re-infection occurs. Applications made to established infections are likely to be less effective.

Brown Rust (Puccinia recondita and P. hordei)
Apply Cello at the first signs of disease. A second application may be made 2-3 weeks later if reinfection occurs. Applications made to established infections are likely to be less effective.

Crown Rust (Puccinia coronata)
Apply Cello at the first signs of disease. Cello controls crown rust in winter and spring oats. A second application may be made 2-3 weeks later if re-infection occurs. Applications made to established infections are likely to be less effective.

Ear Disease Complex
Apply Cello soon after ear emergence until the end of flowering (GS59-69) for moderate control of Fusarium ear blight and reduction of sooty moulds. Control of ear diseases can result in cleaner, brighter ears.

Through the control of ear blight, Cello effectively reduces the level of the Fusarium mycotoxin deoxynivalenol (DON) in wheat grain. However, where Fusarium levels are high, the reduction achieved may not always be sufficient to ensure that DON levels fall below the statutory limit.

Leaf Blotch (Rhynchosporium secalis)
Apply Cello in spring at the first signs of disease. For severe infections a second application may be necessary 2-3 weeks later.

Net Blotch (Pyrenophora teres)
Apply Cello at the first signs of disease in spring/early summer. For severe infections, a second application 2-3 weeks later will give most effective control when conditions remain favourable for disease development.

RESISTANCE STRATEGY
Repeated application of Cello alone should not be used on the same crop against a high risk pathogen such as cereal powdery mildew. Tank-mixtures or alternation with fungicides having a different mode of action have been shown to protect against the development of resistant forms of disease.

CAUTION: The possible development of disease strains resistant to Cello cannot be excluded or predicted. Where such resistant strains occur, Cello is unlikely to give satisfactory control.