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Arizona survey results
ARIZONA seen as an important resistance management tool

ARIZONA (folpet) Survey Findings

We had a great response to our recent survey, with growers and agronomists from across the UK providing some interesting and valuable feedback. Check out the key points uncovered below.

ARIZONA in wheat

The survey showed that ARIZONA was used at a range of spray timings in 2021, with approximately half of applications made at the crucial T1 timing. T2 was the next most common timing, with a number of treatments also applied at T0 and at T1.5.

ARIZONA use in wheat

ARIZONA in barley

ARIZONA was also used at a range of growth stages in barley, with the most common timings being at T2 and T1, with T1.5 applications also relatively popular. As above, ARIZONA was used at T0 by some growers but to a much lesser extent compared to the later timings.

ARIZONA use in barley

Reasons for including ARIZONA

In both crops, the top three reasons for including ARIZONA in their crop protection programmes were:
Improve resistance management


To improve resistance management
Add extra level of disease control


To add an extra level of disease control
Direct replacement for CTL


As a direct replacement for chlorothalonil

Managing resistance

The survey highlighted that growers are using a range of strategies to manage disease resistance, with the more popular tactics including using several fungicide active ingredients in combination, selecting disease resistant varieties and including a multi-site mode of action to protect single site fungicides.

The survey also highlighted the use of cultural control measures as a key tool in the fight against the development of disease resistance.

Managing resistance

Assessing risks

The survey found that the majority of growers and agronomists used ARIZONA last year in order to boost the ability of their crop protection programmes to reduce the risk of disease resistance. This was reaffirmed by the fact that more than 98% of respondents believe that resistance management is an important element of their crop protection strategy, with 85% stating they are either ‘concerned’ or ‘very concerned’ about escalating levels of disease resistance having a detrimental impact on their ability to control cereal diseases in the future.

Accessing risk Arizona survey results

Looking ahead

A similar picture is anticipated in 2022, with the majority of growers surveyed suggesting they’ll once again be using ARIZONA at T1 and T2 in wheat and barley. T0 and T1.5 applications are also expected to take place again this year, depending on the conditions of the season.