VertisanPlant Protection Product ComparisonPlant Protection Product ComparisonReport inaccuraciesReport inaccuracies

An emulsifiable concentrate containing 200 g/l penthiopyrad.

Winter wheat and spring wheat (not durum or red), winter rye, triticale, winter barley and spring barley (including undersown with grass), winter oats and spring oats.

Up to 1.5 l/ha

Apply in 200-300 l/ha of water as a MEDIUM spray quality at a pressure of 2-3 bar

Category B - 5m buffer zone, which can be reduced depending on dose rate, width of watercourse, sprayer type or 1m zone if ditch is dry.

Rainfast 2 hours after application, provided good drying conditions

Wheat, rye, triticale, barley and oats - 2 per crop

Wheat, rye and triticale - Apply up to the end of flowering (GS69)
Barley and Oats - Apply up to the end of flowering (GS69)

5 litres

3.33 ha at maximum label dose

 

There are no following crop restrictions.

 

Vertisan contains penthiopyrad, a broad-spectrum fungicide from the carboxamide group. Carboxamides are classified as succinate dehydrogenase inhibitor (SDHI) by the Fungicide Resistance Action Committee (FRAC). Penthiopyrad inhibits fungal respiration and should be used in mixture with fungicides with other modes of action. Vertisan shows good crop safety, disease control and maintenance of green leaf area which results in significant yield benefits. Vertisan\ is best used as a protectant treatment or in the earliest stages of disease development.

Crops/varieties and timing Vertisan may be used on all winter and spring crops of wheat, barley, oats, rye and triticale. It may also be applied to barley undersown with grass. Vertisan may be applied on barley and oats from the beginning of stem elongation (GS30) up to the end of flowering (GS69). Vertisan may be applied on wheat, rye and triticale from the beginning of stem elongation (GS30) up to the end of flowering (GS69). Best results will be achieved from applications made as a protectant treatment or in the early stages of disease development. Apply before disease is established in the crop. Vertisan should always be applied in tank mixture with another fungicide with an alternative mode of action. Up to 2 treatments of Vertisan may be applied to a crop. If, following a disease risk assessment or the use of appropriate decision support systems, a second treatment is required, this may be applied after an interval of 21 days. Vertisan is accepted by the BBPA for use on crops for malting.

 

Vertisan is safe to recommended crops if used as directed.

 

Apply Vertisan up to twice up to a maximum individual dose of 1.5 l/ha. To avoid any disease resistance developing it is necessary to use Vertisan in mixture with another product recommended for the control of the target disease, and from a different cross resistance group. Rates used may be subject to adjustment depending on variety, tank-mix partner and disease pressure.

 

Apply in 200-300 litres/ha of water using spraying equipment to give good even coverage of the crop. The higher volumes are recommended when the crop is dense. A spray pressure of 2-3 Bar is recommended. Avoid spray drift onto neighbouring crops.

 

Rainfall within 2 hours of application may reduce the effectiveness of the treatment.

 

Apply under good growing conditions with adequate soil moisture. Avoid poor growing conditions, which may give less reliable results.

 

Use Vertisan as part of an Integrated Crop Management (ICM) strategy incorporating other methods of control, including where appropriate other fungicides with a different mode of action. Disease control may be reduced if strains of pathogens less sensitive to penthiopyrad develop. When fungicides with the same mode of action are used repeatedly over several years in the same field, naturally occurring less sensitive strains may survive, propagate and become dominant in that field. A pathogen is considered resistant to a fungicide if it survives a correctly applied treatment at a recommended dose and timing, under normal weather conditions. Vertisan must always be used in mixture with another product, recommended for control of the same target disease that contains a fungicide from a different cross resistance group and is applied at a dose that will give robust control. Do not apply more than two foliar applications of SDHI containing products to any cereal crop. Users should refer to current FRAC guidelines for SDHI compounds.

 

At the recommended rate of application Vertisan controls the following diseases.

Disease:Septoria tritici 

Rate:Up to 1.5 l/ha

Critical Comments:C (wheat) MC (triticale)

 

Disease:Brown rust 

Rate:Up to 1.5 l/ha

Critical Comments:C

 

Disease:Yellow rust

Rate:Up to 1.5 l/ha

Critical Comments:MC

 

Disease:Tan spot (winter and spring wheat) 

Rate:Up to 1.5 l/ha

Critical Comments:Reduction

 

Disease:Net blotch 

Rate:Up to 1.5 l/ha

Critical Comments:C

 

Disease:Ramularia 

Rate:Up to 1.5 l/ha

Critical Comments:MC (winter barley)

 

Disease:Rhynchosporium 

Rate:Up to 1.5 l/ha

Critical Comments:C

 

Disease:Leaf blotch (triticale and rye) 

Rate:Up to 1.5 l/ha

Critical Comments:MC

(KEY: C = Control MC = Moderate control)

 

Vertisan is a formulation of straight SDHI. For the purposes of resistance management and efficacy, a tank-mix of Vertisan + partner product has proven to provide the optimum disease control strategy. Vertisan offers the ultimate flexibility in partner product choice which can be varied to suit the situation being targeted. In wheat when septoria is targeted, the partner product will typically be based on epoxiconazole or prothioconazole. Chlorothalonil can be added to these mixes to offer broader disease control and more robust resistance management. In its own right Vertisan gives good control of yellow rust. When used in combination with a triazole, this is elevated to excellent yellow rust control to compliment the activity on Septoria and Brown rust. In addition to excellent disease control, rooting improvements and crop greening have been documented in closely monitored experiments. This will clearly help the crop to forage for water and nutrients and is likely to be beneficial in helping the crop during short periods of drought.

 

Refer to Compatibility appendix.

 

Ensure that the sprayer is clean and correctly set to give an even application at the required volume. Half-fill the spray tank with clean water and start agitation. Shake the container and add the required amount of Vertisan to the sprayer using a filling device (e.g. induction bowl or closed transfer unit) or by direct addition to the sprayer tank. Wash out containers thoroughly, preferably using an integrated pressure rinsing device, or manually rinse three times. Add washings to the sprayer at the time of filling. Complete filling to the required volume and continue to agitate throughout the spraying operation. Do not leave the spray liquid in the sprayer for long periods (such as during meal breaks or overnight).

 

Thoroughly wash out sprayer according to manufacturer’s guidelines and dispose of washings and clean containers according to DEFRA Code of Practice and local Water Authority guidelines.