Chemical class

Solo or mixtures

Alternation or blocks

Maximum number of applications

Spray timing

Demethylation inhibitors (DMIs)

only in mixtures

only in full alternation

8

not more than 50% of total number of sprays

*

Amine fungicides

both, mixtures preferred

block of maximum 2 consecutive sprays, full alternation preferred

15

not more than 50% of total number of sprays

no restrictions within manufacturer’s labels

Qo inhibitors (QoIs)

only in mixtures

only in full alternation

3

not more than 33% of total number of sprays

**

Anilinopyrimidines (APs)

only in mixtures

only in full alternation

8

not more than 50% of total number of sprays

no restrictions within manufacturer’s labels

Benzimidazoles (BCMs)

only in mixtures

only in full alternation

3

not more than 33% of total number of sprays

**

N-Phenylcarbamates

only in mixtures

only in full alternation

3

not more than 33% of total number of sprays

**

SDH inhibitors (SDHIs)

only in mixtures

only in full alternation

3

not more than 33% of total number of sprays

**

Guanidines

only in mixtures

only in full alternation

6

not more than 33% of total number of sprays

***

Multi-sites

solo or mixtures

no restriction within manufacturer’s labels

no limits within manufacturer’s labels

no restrictions within manufacturer’s labels

Biologicals

Class F6, F7

solo or mixtures

no restriction within manufacturer’s labels

no limits within manufacturer’s labels

no restrictions within manufacturer’s labels

* Applications starting preferably at onset of annual disease progression curve

** Preferably at lower disease pressure; sprays must be separated by at least 3 months

*** Preferably at lower disease pressure; sprays must be separated by at least 6 weeks


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Contact

Dr. Andreas Mehl
Chair

Bayer AG, Crop Science Division
Alfred-Nobel-Str. 50,
Building 6240
D-40789 Monheim

Tel: 49-2173-383797
andreas.mehl@bayer.com