Iron deficiency-Strawberries

Symptoms
Symptoms always start on youngest leaves with yellow or pale green intercostal chlorosis. With ongoing deficiency the complete leaf shows uniform yellowgreen discolouration. Necrotic areas may appear on leaf margins and spread over the leaf blade. Growth is reduced with severe deficiency only.

Reasons
Iron deficiency. May be confused with magnesium or manganese deficiency, but in these cases interveinal yellowing does not start on youngest leaves. Damage to root system by waterlogging or root damage can produce similar symptoms. Fe availibility declines as pH increases above 6.5. Iron deficient leaf blades contain less than 40 ppm Fe on dry basis.

Symptoms
Symptoms always start on youngest leaves with yellow or pale yellow intercostal chlorosis. With ongoing deficiency also veins turn yellow and necrotic areas appear on leaf margins and spread over whole leaves. Plant growth is stunted.

Reasons
Severe iron deficiency on leaves. Iron deficient leaf blades contain less than 40 ppm iron on dry basis. May be confused with magnesium or manganese deficiency. But in these cases interveinal yellowing does not start on youngest leaves. Damage to root system by waterlogging or root damage can produce similar symptoms as well.

Symptoms
Symptoms always start on youngest leaves with yellow or pale yellow intercostal chlorosis. With ongoing deficiency also veins turn yellow, while the intercostal tissue becomes almost white. Necrotic areas appear on leaf margins and spread over whole leaves. Plant growth is stunted.

Reasons
Severe iron deficiency on leaves. Iron deficient leaf blades contain less than 40 ppm iron on dry basis. May be confused with magnesium or manganese deficiency. But in these cases interveinal yellowing does not start on youngest leaves. Damage to root system by waterlogging or root damage can produce similar symptoms as well.

Symptoms
Symptoms always start on youngest leaves with yellow or pale green intercostal chlorosis. With ongoing deficiency the complete leaf shows uniform yellowgreen discolouration. Necrotic areas may appear on leaf margins and spread over the leaf blade. Growth is reduced with severe deficiency only.

Reasons
Iron deficiency. May be confused with magnesium or manganese deficiency, but in these cases interveinal yellowing does not start on youngest leaves. Damage to root system by waterlogging or root damage can produce similar symptoms. Fe availibility declines as pH increases above 6.5. Iron deficient leaf blades contain less than 40 ppm Fe on dry basis.

Symptoms
Symptoms always start on youngest leaves with yellow or pale green intercostal chlorosis. With ongoing deficiency the complete leaf shows uniform yellowgreen discolouration. Necrotic areas may appear on leaf margins and spread over the leaf blade. Growth is reduced with severe deficiency only.

Reasons
Iron deficiency. May be confused with magnesium or manganese deficiency, but in these cases interveinal yellowing does not start on youngest leaves. Damage to root system by waterlogging or root damage can produce similar symptoms. Fe availibility declines as pH increases above 6.5. Iron deficient leaf blades contain less than 40 ppm Fe on dry basis.

Symptoms
Symptoms always start on youngest leaves with yellow or pale green intercostal chlorosis. With ongoing deficiency the complete leaf shows uniform yellowgreen discolouration. Necrotic areas may appear on leaf margins and spread over the leaf blade. Growth is reduced with severe deficiency only.

Reasons
Iron deficiency (right). May be confused with magnesium or manganese deficiency, but in these cases interveinal yellowing does not start on youngest leaves. Damage to root system by waterlogging or root damage can produce similar symptoms. Fe availibility declines as pH increases above 6.5. Iron deficient leaf blades contain less than 40 ppm Fe on dry basis.

Symptoms
Symptoms always start on youngest leaves with yellow or pale green intercostal chlorosis. With ongoing deficiency the complete leaf shows uniform yellowgreen discolouration. Necrotic areas may appear on leaf margins and spread over the leaf blade. Growth is reduced with severe deficiency only.

Reasons
Iron deficiency. May be confused with magnesium or manganese deficiency, but in these cases interveinal yellowing does not start on youngest leaves. Damage to root system by waterlogging or root damage can produce similar symptoms. Fe availibility declines as pH increases above 6.5. Iron deficient leaf blades contain less than 40 ppm Fe on dry basis.