FUNGICIDE DAMAGE
Ring marks on berries where a fungicide emulsion mixture (EC) was sprayed to run-off Photo credit: Peter Magarey
Look for in bunches- Burnt foliage and berries with brown to black scars
- Spots, ring spots or russet marks where berries touch, where spray liquid has collected or where the waxy layer on berries has been removed
- Obvious spray deposits on berries
- Usually caused by toxic reactions to spray chemicals.
- Fungicides can damage berries or burn shoots and leaves. Review spray records from the vineyard and adjacent crops to help in diagnosing spray damage. Unsightly spray deposits on bunches reduce market value of tablegrapes.
Not all fungicides are compatible as mixtures, e.g. some EC formulations cause severe damage when mixed with other products.
|
|
OTHER FUNGICIDE DAMAGE IMAGES
LOOKS LIKE
|