This is my first fruit tree. [h=2]Treatment[/h] The leaf spots are the first visible symptom to develop on the apple trees. Now, as you can see in the pictures, the dying leaves are spreading. Many of the the leaves have brown spots that appear to have small insects inbedded but I never see any. There are no brown spots on the leaves that I could see. 1. These eventually grow larger and darker, with red borders and tiny black spots in the centers. The sign of cedar-quince rust is the presence of rusty spots on your tree's leaves; the apples themselves may also be misshapen and/or suffer from mottling. ... Apple tree with a yellow sticky trap for apple maggots (Rhagoleti pomonella). The first signs of apple scab occur on the underside of leaves: dull, olive-green round spots, often along the leaf veins and on the leaves closest to the buds. If however, your tree undergoes this defoliation process more than three years in a row, the tree could be negatively impacted. Frogeye leaf spot is caused by Botryosphaeria obtusa fungus. Severe infections can affect the entire leaf, causing it to turn brown and drop from the tree. ... Irregular brown spots/blotches with lighter centers and darker borders on leaves due to black rot disease. Apples are susceptible to three kinds of rust: cedar apple rust, quince rust, and hawthorn rust. Symptoms: Spots on young leaves are velvety and olive green turns black; leaves wither, curl and drop. Slightly raised, black spots deform the fruits. As the fungus spreads over the tree leaves, the leaves will yellow and drop. The Rust will next appear on the fruit, about two weeks after the spots on the leaves. I looked and I did not see any signs of aphids under the leaves. The disease begins in spring as dark, olive-green leaf spots that are less than ½-inch in diameter. Many of the apples have spots and many have worm holes but few worms. The spots are less than 6 mm (1/4 inch) in diameter and are darker at the edges than at the centre. Lesions may also affect the fruit, causing unattractive, sunken yellow, orange or brown spots on the apples. Flatheaded Apple Tree Borer. These spots gradually grow into brown or black large circles with a velvet-like surface up to half an inch across. I have two Mac apple trees and they seem to be having trouble I have not identified. Fruit also has spots, is deformed, knotty, cracked and drops. The orange spots on your apple trees are a type of rust. The leaves of the tree are oval in shape and can reach up to 13 cm (5.1 in) in length and 7 cm (2.8 in) in width. 2. If you notice leaf spots affecting your trees early in the spring, the afflicted leaves may fall off and new leaves could return sans spots. If anyone has any answers, please let me know. In its early stages, frogeye leaf spot appears as circular brown spots on apple tree leaves. The ground under the trees is kept clean. 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