Leaf growth is reduced and leaves are pale green / yellow in colour. Chlorotic leaves eventually develop necrotic blotches near the margin. Symptoms start at younger leaves.
Sulphur deficiency Nitrogen deficiency can produce similar symptoms but starts at older leaves.
Apple: 3 to 5 l/ha before the start of flowering. Repeat at fruit set and 10 to 14 days later if necessary or after harvest before leaf fall. Water rate: 500 to 1000 l/ha. WARNING Do not apply during flowering. This product contains an active ingredient which, when used at rates around 15 l/ha, has been found to cause fruit thinning. These rates may also cause leaf scorch and Yara does not warrant this application.Read more about YaraVita THIOTRAC 300