Sümptomid
Symptoms start at young, fully developed and medium leaves. They show yellow green or yellow interveinal chlorosis. Veins and streaks along the veins remain green.
Sometimes leaves look like a mosaic, because also fine veins remain green.
Later necrotic spots, sometimes white in colour, and necrotic blotches appear.
Põhjused
Manganese deficiency
Sümptomid
Symptoms start at young, fully developed and medium leaves. They show yellow green or yellow interveinal chlorosis. Veins and adjacent tissue remain green.
Sometimes leaves look like a mosaic, because also fine veins remain green.
Later necrotic spots, sometimes white in colour, and necrotic blotches appear.
Põhjused
Manganese deficiency
Apple: 1 l/ha prior to flowering (for severe deficiency), otherwise at petal fall. Repeat 10-14 days later. Water rate: 500-1,000 l/ha.
Loe lähemalt tootest YaraVita MANTRAC PROAasia ja Okeaania