Average number of

action thresholds exceeded per year (Standard error)

Average number of

reactive treatments per year (Standard error)

Average amount of

copper (g) needed per year (Standard error)

CuSO₄

10.25

(2.75)

6.5

(0.5)

1,414

(47.8)

SeClear

5.25

(1.25)

4.25

(0.25)

829.5

(48.5)

Phoslock plus

2.75

(0.75)

1.75

(0.25)

341.5

(48.5)