Bontima

Manufacturer
ADAMA
Category
Fungicides
Registered until
2026-10-31
Registration number
18566
Active materials
Links

A fungicide for the control of net blotch, Rhynchosporium secalis, Ramularia collo-cyni, brown rust and powdery mildew on winter and spring barley. An emulsifiable concentrate containing 187.5 g/l cyprodinil (18.3% w/w) and 62.5 g/l isopyrazam (6.1% w/w). Also contains solvent naphtha.

DIRECTIONS FOR USE
IMPORTANT: This information is approved as part of the Product Label. All instructions within this section must be carefully read in order to obtain safe and successful use of this product.

GENERAL INFORMATION
Isopyrazam is an orthosubstituted pyrazole carboxamide fungicide belonging to the sub-class of the benzonorbornenes. Cyprodinil is from the pyrimidinamine group of chemicals.
BONTIMA is predominantly protectant but has significant biological potency and can deliver disease control away from the point of application. Isopyrazam is an SDH respiration inhibitor (FRAC group #7 carboxamides). No cross resistance to any compound of a different fungicide class is expected. Cyprodinil inhibits methionine biosynthesis (FRAC group #D1 pyriminadines). No cross resistance to any compound of a different fungicide class has yet been identified or is expected.
BONTIMA shows excellent crop safety and disease control which results in significant yield benefits. BONTIMA is best used as a protectant treatment or in the earliest stages of disease development. The length of disease control is generally about four to six weeks during the period of active stem elongation.

RESISTANCE MANAGEMENT
Use BONTIMA 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. You must not apply more than two foliar applications of products containing an SDH inhibitor to any cereal crop.
Disease control may be reduced if strains of pathogens less sensitive to BONTIMA develop. Users should refer to current FRAG-UK guidelines for SDHI compounds.

DISEASES CONTROLLED
Winter and Spring Barley Net blotch (Pyrenophora teres), Brown rust (Puccinia hordei), Ramularia collo-cygni, Leaf blotch (Rhynchosporium secalis), Powdery mildew (Erysiphe graminis hordei).

CROP SPECIFIC INFORMATION
Crops and growing conditions
BONTIMA can be used on all varieties of winter and spring barley. Apply BONTIMA under good growing conditions with adequate soil moisture. Avoid poor growing conditions which may give less reliable results.

Timing
Always inspect crops to assess disease development immediately before spraying. Best results will be achieved from applications made as a protectant treatment or in the earliest stages of disease development following a disease risk assessment or the use of appropriate decision support systems.
BONTIMA is accepted by BBPA (British Beer and Pub Association) for use on malting barley provided application is made before the beginning of flowering (GS 61). Latest timing in malting barley is, therefore, up to and including, complete ear emergence (GS 59).

RATE OF USE
Apply BONTIMA at 2.0 litres per hectare

FOLLOWING CROPS
There are no restrictions on succeeding crops in a normal rotation. 

MIXING AND SPRAYIING
Mixing Procedure
Make sure the sprayer is set to give an even application at the correct volume. Fill the spray tank with half the required volume of water and begin agitation. Add the required amount of BONTIMA to the spray tank and allow to disperse before adding any other product. Add the rest of the water and continue to agitate the mixture thoroughly. Always agitate during spraying.

Spray Quality
Apply BONTIMA using a conventional fan nozzle producing a medium spray quality at as defined by the British Crop Protection Council. A spray pressure of 2-3 bar is recommended.

Spray Volume
Apply BONTIMA in a recommended 150-300 litres of water per hectare through conventional crop spraying equipment.

After Spraying
Thoroughly wash out sprayer according to manufacturer’s guidelines and dispose of washing and clean containers according to DEFRA Code of Practice and local water authority guidelines. Crops should not be re-entered until spray residues are dry.

Registered for culturesRate
Spring barley2 l
Winter barley2 l