| Fungal rot | Timing | Factor | Assessment procedure | Criteria for risk |
|---|---|---|---|---|
| Brown rot | July / August | Incidence of brown rot in orchard | Select 20 trees at random and assess incidence of brown rot on tree and on floor to obtain % fruit with brown rot | Brown rot incidence >1% = high risk |
| Neonectria rot | April | Incidence of canker | Select 20 trees at random and assess incidence of cankered trees |
>25% trees with canker = high risk 5-25% = moderate risk <5% = low risk 0 = no risk |
| Gloeosporium rot | July | Crop load | Select 20 trees at random and assess crop load as light, moderate or heavy. | light crop = risk |
| Phytophthora rot | July and August / September | (1) % bareground
(2) % crop <½ metre from ground |
Inspect whole orchardEstimate bareground under trees taking into account mulch and weed cover
Select 20 trees at random and assess % crop <½ metre from ground |
(1) 100% bareground (overall herbicide) = high risk(2) Overall grass or mulch or weed cover (0% bareground) = low risk (3) herbicide strip (20% or >bareground) = risk
15% or >= risk |