Magnesium deficiency - Raspberries

Symptoms
Interveinal chlorosis occurs on older leaves first, but proceeds to younger tissues with ongoing deficiency. Severely affected plants show marginal and interveinal leaf scorch. Growth is moderately stunted.

Reasons
Magnesium deficiency Normal leaf level is 0.3-0.9% Mg. Deficiencies occur in light, sandy soils with low pH or high K resp. Al content. Cold, wet, cloudy weather may contribute to Mg undersupply. Symptoms of virus yellowing or K deficiency look similar.

Symptoms
Interveinal chlorosis occurs on older leaves first, but proceeds to younger tissues with ongoing deficiency. Severely affected plants show marginal and interveinal leaf scorch. Growth is moderately stunted.

Reasons
Magnesium deficiency Normal leaf level is 0.3-0.9% Mg. Deficiencies occur in light, sandy soils with low pH or high K resp. Al content. Cold, wet, cloudy weather may contribute to Mg undersupply. Symptoms of virus yellowing or K deficiency look similar.

Symptoms
Interveinal chlorosis occurs on older leaves first, but proceeds to younger tissues with ongoing deficiency. Severely affected plants show marginal and interveinal leaf scorch. Growth is moderately stunted.

Reasons
Magnesium deficiency Normal leaf level is 0.3-0.9% Mg. Deficiencies occur in light, sandy soils with low pH or high K resp. Al content. Cold, wet, cloudy weather may contribute to Mg undersupply. Symptoms of virus yellowing or K deficiency look similar.

Symptoms
Interveinal chlorosis occurs on older leaves first, but proceeds to younger tissues with ongoing deficiency. Severely affected plants show marginal and interveinal leaf scorch. Growth is moderately stunted.

Reasons
Magnesium deficiency Normal leaf level is 0.3-0.9% Mg. Deficiencies occur in light, sandy soils with low pH or high K resp. Al content. Cold, wet, cloudy weather may contribute to Mg undersupply. Symptoms of virus yellowing or K deficiency look similar.

Symptoms
Interveinal chlorosis occurs on older leaves first, but proceeds to younger tissues with ongoing deficiency. Very severely affected plants finally become completely necrotic, brittle, and die off.

Reasons
Magnesium deficiency Normal leaf level is 0.3-0.9% Mg. Deficiencies occur in light, sandy soils with low pH or high K resp. Al content. Cold, wet, cloudy weather may contribute to Mg undersupply. Symptoms of virus yellowing or K deficiency look similar.

Symptoms
Interveinal chlorosis occurs on older leaves first, but proceeds to younger tissues with ongoing deficiency. Severely affected plants show marginal leaf scorch. Growth is moderately stunted.

Reasons
Magnesium deficiency (right) Normal leaf level is 0.3-0.9% Mg. Deficiencies occur in light, sandy soils with low pH or high K resp. Al content. Cold, wet, cloudy weather may contribute to Mg undersupply. Symptoms of virus yellowing or K deficiency look similar.