Prompto

Manufacturer
BAYER
Category
Fungicides
Registered until
Registration expired
Registration number
15156
Active materials

Prompto is the only blight fungicide combining systemic activity against the current aggressive blight strains with the protection against early infections of Alternaria.  Prompto provides the full systemic protection for new leaf and stem growth against blight needed during the rapid canopy growth phase.  In addition the fenamidone component provides good activity against Alternaria and the early protection against this disease reduces the need for costly specific Alternaria treatments later in the programme.

A protectant/systemic fungicide used to control late blight (Phytophthora infestans) and protect crops against early blight (Alternaria) in potatoes

Prompto is the only blight fungicide combining systemic activity against the current aggressive blight strains with the protection against early infections of Alternaria.  Prompto provides the full systemic protection for new leaf and stem growth against blight needed during the rapid canopy growth phase.  In addition the fenamidone component provides good activity against Alternaria and the early protection against this disease reduces the need for costly specific Alternaria treatments later in the programme.

Provides full systemic protection of new leaf and stem growth during the rapid canopy growth stage
Controls all disease strains including phenylamide resistant
Active at many stages of the blight lifecycle, especially direct germination
Provides activity against Alternaria
Easy-to-use liquid formulation
Rainfast protection after one hour
Can be used on all varieties including seed and processing crops

To get the best performance from Prompto, it should be used as part of a programme of correctly-timed sprays. Late blight control must start early in the season and failure to treat blight at this stage can result in severe yield losses.  The first spray should be applied as soon as there is a risk of Late blight infection i.e. when a Blight Infection Period (Smith Period) has occurred or a warning has been issued. In the absence of any warning, protectant spraying should commence just before the crop meets along the row.
Use only as a protectant treatment at a rate of 2 L/ha and repeat the application after seven days.

Prompto is designed for use as part of a programme, during the rapid phase of growth
Apply only to dry foliage, do not apply if rainfall or irrigation is imminent. Rainfastness is one hour provided the spray has dried on the leaf
Avoid drift to areas outside those being sprayed
Avoid extending spray intervals in high risk situations (on irrigated crops or when active blight is present in the area and further Blight Infection Periods occur)
Do not use Prompto when blight has become visible (1 per cent leaf are destroyed)

Prompto contains fenamidone, a QoI fungicide. Should more than one Late blight product containing QoI fungicide be used in a programme, then these restrictions apply to all QoI containing products. Do not apply more than six applications of QoI containing product to any potato crop.
Prompto should be used in single or block applications in alternation with fungicides from a different cross-resistance group. The maximum number of consecutive applications is three. Prompto should make up no more than half of the intended applications in the programme
In addition, and before application, consult and adhere to the latest FRAG-UK resistance quidance on application of QoI fungicides

Prompto should be used as part of a programme to control Late blight in conjunction with a product such as Infinito (fluopicolide and propamocarb hydrochloride), which can be used during mid to late season. Prompto can be applied during the rapid growth stage to build in early protection.

POTATO
Maximum individual dose: 2.0 L product per hectare
Maximum total dose: 12.0 L product per hectare per crop
Maximum number of applications: 6 per crop
Latest time of application: 7 days before harvest

DIRECTIONS FOR USE
IMPORTANT : This leaflet is approved as part of the label. All instructions on this leaflet and on the label should be read carefully in order to obtain successful results from the use of this product.

INTRODUCTION
Prompto is a fungicide which combines the protectant and translaminar action of fenamidone with the systemic and protectant properties of propamocarb hydrochloride to give protection against late blight of potatoes. Fenamidone also gives protection against early blight.
Avoid spraying within 5m of the field boundary to reduce effects on non-target insects and other arthropods.

RESTRICTIONS
Apply Prompto only to dry foliage. Do not apply Prompto if rainfall or irrigation is imminent.
Avoid drift to areas outside those being sprayed having due regard to the prevailing weather conditions and the spray quality being used.

DISEASES CONTROLLED
When used as part of a full programme of correctly timed sprays, Prompto gives control of late blight of potatoes and protects crops against early blight (Alternaria).
It is essential to commence treatment early in the season because failure to treat blight at this stage can result in severe yield losses. Prompto may be used at any stage of the season although within a blight programme it is best targeted at the commencement of spraying.
Prompto should be applied only as a protectant treatment. Using Prompto when late blight has become readily visible (1% leaf area destroyed) is not recommended.

Resistance management
Prompto contains fenamidone, a QoI fungicide. Should more than one product containing a ‘QoI ‘ fungicide be used in a programme, then these restrictions apply to all ‘QoI’ containing products. Do not apply more than 6 applications of a ‘QoI’ containing product to any potato crop.
Prompto should be used in single or block applications in alternation with fungicides from a different cross-resistance group. The maximum number of consecutive applications is limited to three. To reduce the incidence of resistance developing, Prompto should make up no more than half of the intended applications in a programme. In addition to the above conditions, and before application, consult and adhere to the latest FRAG-UK resistance guidance on application of ‘QoI’ fungicides to potatoes.

CROP SPECIFIC INFORMATION
All varieties of early, main and seed crop potatoes may be sprayed.

TIMING
The first spray must be applied as soon as there is a risk of late blight infection, that is when a Blight Infection Period (Smith Period*) has occurred or an official warning has been issued. In the absence of any warning, protectant spraying of Prompto should begin just before the crop meets along the row.
*2 consecutive days and nights of warm, humid weather are likely to fulfil the requirements of a Blight Infection Period and create a high risk of infection (see below).
Used as part of a late blight spray programme, Prompto will give protection from early blight (Alternaria).

Dose: 2.0 L/ha
Sprays should be repeated at 7 day intervals. Crops are at high risk when active late blight is present in the area in dumps or on crops or volunteers and further Blight Infection Periods are recorded (or warnings issued). The risk is especially high when periods of rapid growth coincide with other high risk factors. Irrigated crops and potatoes being grown in certain areas of the country are regularly at high risk.
High risk areas are defined as -
- areas of the country where weather conditions conducive to blight regularly occur during the growing season.
- areas of the country associated with early potato production, production under temporary plastic mulches or extensive maincrop production where dumps and volunteers are frequently found.
Applications of Prompto can be made until the potato haulm begins to senesce.
When late blight has become readily visible (1% leaf area destroyed), fungicides have little effect on subsequent development. Stop using Prompto under these conditions.
Prompto may be applied at a shorter interval than indicated above should there be an agronomic need as long as all other conditions of use are followed – particularly the maximum number of treatments, maximum total dose and the latest timing.

APPLICATION
Volume
200 - 400 litres of water per hectare

Spray Quality
Apply as a MEDIUM quality spray (for details see Boom Sprayers Handbook published by BCPC).

COMPATIBILITY
Consult your distributor or a Bayer CropScience Limited representative.

SPRAY OPERATORS INSTRUCTIONS
SHAKE WELL BEFORE USE
1. Wash out sprayer, spray bars and nozzles to ensure that no trace remains of previous chemicals.
2. Check that the nozzle tips are clean, undamaged, of the correct type to produce the recommended spray quality and all of the same size.
3. Start filling the sprayer tank with clean water; check that the agitation is operating correctly. Check dose and volume of application.
4. Calculate the area to be sprayed with the tank load and hence the amount of chemical required. Add the required quantity of product to the water in the sprayer whilst the agitator is operating. Mix only sufficient chemical for immediate use.
5. Add water to the required level and continue agitation until spraying is completed.
6. Ensure that the spray bars are set at the correct height to give a good spray cover, and that alternate spray cones or fans meet just above the crop. Even cover with a well-mixed spray is essential for good results.
7. Commence spraying, being careful to maintain the correct pressure and tractor speed.
8. Wash equipment thoroughly with water and liquid detergent immediately after use. Finally wash out twice with water and drain.

CONTAINER DISPOSAL
Empty containers should be disposed of in a safe way.
Consult the DEFRA / HSE publication “Pesticides: Code of Practice for the Safe Use of Pesticides on Farms and Holdings” before undertaking disposal.

COMPANY ADVISORY INFORMATION
Certain diseases may develop resistance to Bayer CropScience Limited’s products. Since such circumstances are beyond our control, Bayer CropScience can accept no liability for any loss or damage whatsoever.

 

Registered for culturesRatePreharvest Interval
Potatoes2 l7