Raspberries - Growth retardation
Symptoms
Distinct paling of leaf tissue while veins remain green. Symptoms usually appear on young shoots first but spread to older leaves with ongoing deficiency. Severely affected plants show bleached yellow to whitish discoloration. Poor growth.
Causes
Iron deficiency (right)
The suggested level of Fe in leaf tissue is 25-200ppm. Fe deficiency is rarely seen in the field, but can be induced by high pH, i.e. after excessive liming, or P oversupply.
Raspberries - Chlorosis
Symptoms
Distinct paling of leaf tissue while veins remain green. Symptoms usually appear on young shoots first but spread to older leaves with ongoing deficiency. Severely affected plants show bleached yellow to whitish discoloration. Poor growth.
Causes
Iron deficiency
The suggested level of Fe in leaf tissue is 25-200ppm. Fe deficiency is rarely seen in the field, but can be induced by high pH, i.e. after excessive liming, or P oversupply.
Raspberries - Chlorosis
Symptoms
Distinct paling of leaf tissue while veins remain green. Symptoms usually appear on young shoots first but spread to older leaves with ongoing deficiency. Severely affected plants show bleached yellow to whitish discoloration. Poor growth.
Causes
Iron deficiency
The suggested level of Fe in leaf tissue is 25-200ppm. Fe deficiency is rarely seen in the field, but can be induced by high pH, i.e. after excessive liming, or P oversupply.
Raspberries - Chlorosis
Symptoms
Distinct paling of leaf tissue while veins remain green. Symptoms usually appear on young shoots first but spread to older leaves with ongoing deficiency. Severely affected plants show bleached yellow to whitish discoloration. Poor growth.
Causes
Iron deficiency
The suggested level of Fe in leaf tissue is 25-200ppm. Fe deficiency is rarely seen in the field, but can be induced by high pH, i.e. after excessive liming, or P oversupply.
Raspberries - Growth retardation
Symptoms
Distinct paling of leaf tissue while veins remain green. Symptoms usually appear on young shoots first but spread to older leaves with ongoing deficiency. Severely affected plants show bleached yellow to whitish discoloration. Poor growth.
Causes
Iron deficiency
The suggested level of Fe in leaf tissue is 25-200ppm. Fe deficiency is rarely seen in the field, but can be induced by high pH, i.e. after excessive liming, or P oversupply.
Raspberries - Growth retardation
Symptoms
Distinct paling of leaf tissue while veins remain green. Symptoms usually appear on young shoots first but spread to older leaves with ongoing deficiency. Severely affected plants show bleached yellow to whitish discoloration. Poor growth.
Causes
Iron deficiency
The suggested level of Fe in leaf tissue is 25-200ppm. Fe deficiency is rarely seen in the field, but can be induced by high pH, i.e. after excessive liming, or P oversupply.
Iron deficiency vs. healthy plant made worse by
- High pH
- Water logged soils
- Calcareous soils
- High copper, manganese or zinc soils
Iron is important for
- Essential for photosynthesis and plant metabolism
- Thus important for early leaf development, strong growth with healthy leaves and crop productivity
Yara recommended fertilisers for Iron deficiency
YaraVita FERLEAF 100
Raspberry: 1 l/ha applied 3 to 8 times at 7 to 14 day intervals. Start applications as soon as there is sufficient leaf cover to intercept the spray (preventative treatment), or as soon as first symptoms appear (curative treatment). Avoid applications during flowering. Water rate: 1000 l/ha.
Read more about YaraVita FERLEAF 100
