Symptoms
Interveinal chlorosis occurs on older leaves. With ongoing deficiency the chlorotic tissue turns necrotic brown and mature leaves die off. Growth is stunted.
Causes
Manganese deficiency
Suggested range in leaf tissue is 80-300ppm.
In acid soils Mn availibility is increased and may cause toxicity.
Plant and soil analysis are recommended.
Raspberries - Chlorosis
Symptoms
Interveinal chlorosis occurs on older leaves. With ongoing deficiency the chlorotic tissue turns necrotic brown and mature leaves die off. Growth is stunted.
Causes
Manganese deficiency
Suggested range in leaf tissue is 80-300ppm.
In acid soils Mn availibility is increased and may cause toxicity.
Plant and soil analysis are recommended.
Raspberries - Chlorosis
Symptoms
Interveinal chlorosis occurs on older leaves. With ongoing deficiency the chlorotic tissue turns necrotic brown and mature leaves die off. Growth is stunted.
Causes
Manganese deficiency
Suggested range in leaf tissue is 80-300ppm.
In acid soils Mn availibility is increased and may cause toxicity.
Plant and soil analysis are recommended.
Raspberries - Chlorosis
Symptoms
Interveinal chlorosis occurs on older leaves. With ongoing deficiency the chlorotic tissue turns necrotic brown and mature leaves die off. Growth is stunted.
Causes
Manganese deficiency
Suggested range in leaf tissue is 80-300ppm.
In acid soils Mn availibility is increased and may cause toxicity.
Plant and soil analysis are recommended.
Raspberries - Chlorosis
Symptoms
Interveinal chlorosis occurs on older leaves. With ongoing deficiency the chlorotic tissue turns necrotic brown and mature leaves die off. Growth is stunted.
Causes
Manganese deficiency
Suggested range in leaf tissue is 80-300ppm.
In acid soils Mn availibility is increased and may cause toxicity.
Plant and soil analysis are recommended.
Manganese deficiency vs. healthy plant made worse by
Organic soils
Sandy soils
High pH
Cold wet periods
Fluffy soils
Manganese is important for
Combats chlorosis
Prevents premature leaf fall
Gives healthier greener plants
Yara recommended fertilisers for Manganese deficiency
YaraVita MANTRAC PRO
Raspberry: 1 l/ha at start of flowering. Water rate: 200-500 l/ha.