Bontima

Manufacturer
SYNGENTA
Category
Fungicides
Registered until
Registration expired
Registration number
03932
Active materials
Links

Contains cyprodinil and isopyrazam. May cause an allergic reaction.

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 biochemical 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.

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)

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.

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.

Rates 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 SPRAYING
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 as defined by the British Crop Protection Council. A spray pressure of 2–3 bars is recommended.

Spray Volume
Apply BONTIMA in a recommended 100–400 litres of water per hectare through conventional crop spraying equipment

After Spraying
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.

Registered for culturesRateBBCH
Winter barley2 l0 - 61
Spring barley2 l0 - 61