The tree's leaves can tell you a lot about how healthy your tree is and in many cases, if its cultural requirements are being met. Tent caterpillars, cankerworm, webworm and redhumped caterpillars are all pests of apricot leaves. These pests rarely cause major damage to apricot. Sunburn Damage. My Apricot Tree Is Losing Its Leaves Severe Shot Hole. Be sure trees are … To protect themselves from predators while they feed, leaf rolling caterpillars use silk to roll up apricot leaves. Apricot trees grow in areas with moderate winters and summer temperatures. Prune and fertilize your trees carefully each year. Wash away the caterpillars and eggs with a forceful spray of water. © Copyright 2020 Hearst Communications, Inc. Apricots host the fruittree leafroller, a smooth green caterpillar with a black head. Apricots (Prunus armeniaca) are Chinese natives and are hardy growing in USDA hardiness zones 5 through 8. She has been writing science-related articles for print and online publications for more than 15 years. Tent caterpillars, cankerworm, webworm and redhumped caterpillars are all pests of apricot leaves. Apricot tree leaves grow singly, in an alternate pattern along the stems. Where earwigs are abundant, apply sticky horticultural tape at the base of the tree. These creatures also produce honeydew. Apricot, Prunus armeniaca is a deciduous tree in the family Rosaceae grown for its edible fruit. Citrus cutworms are small, brown to green caterpillars with a white stripe along each side of their smooth bodies. Jean Godawa is a science educator and writer. Select apricot varieties best suited to your climate zone to prevent sunburn and other problems. Should You Try and Grow an Apricot Tree from Seed? The flowers may grow double rows of petals, depending upon the species of apricot tree. The damage they cause is negligible or aesthetic in most cases and high populations are usually limited by natural predators such as ladybugs and lacewings. Severe Spider Mite Infestation. The apricot tree is has an erect growth habit and a spreading canopy. Dusty conditions encourage spider mites, so keep dust down by planting grass near the trees and keeping it watered during hot months. Here are some of the most common diseases of apricot trees: Besides damaging leaves, thrips can also transmit plant viruses. Wait until leaves have fallen, but apply the spray before winter rains using Bordeaux mixture, but do not use sulfur sprays on apricot trees. Preventing Problems with Apricot Trees Leaves. These moth larvae feed on the soft tissue between leaf veins leaving skeletonized, lacy leaf remnants hanging on the tree. On apricot leaves, spider mites and thrips cause stippling. Ah, fruit trees — gardeners everywhere plant them with such hope, but more often than not, new fruit tree owners are disappointed and underwhelmed when they discover their efforts aren’t bearing fruit. So, if your tree is losing leaves at the end of the season, don’t worry, but if it happens at other times of the year, something is wrong with the health of the tree. A landscape tree with attractive leaves and pink or white flowers. The most common problems affecting the health of apricot trees often show themselves in the condition of the leaves. Although they are different species and vary in color and size, their damage is unmistakable. However, apricots are prone to several diseases and pests that affect the foliage. Holes and Notches. Stone fruits like apricots need deep watering about every 10 days to two weeks during late spring and summer months in order to produce ripe fruit and to stay healthy. Many fungal problems affecting apricot trees can be prevented with the use of dormant oil spray applied to the trees in the winter. Curled or fused leaves with holes or other damage indicate a leafroller problem. Spider mites are difficult to see without a hand lens. Since healthy apricot trees rarely suffer from thrips damage, treatments are unnecessary. Treat the tree when there is no possibility of rain for 24 hours. Prune the tree to remove branches and allow light to reach the center and to keep fruiting wood healthy. If repeated spraying is ineffective, apply Bacillus thuringiensis or Bt, a microbial insecticide, as soon as possible after the caterpillars hatch. The larva of the western tussock moth is a colorful furry caterpillar with four tufts of white hair. Aphids and scale insects cause apricot leaves to yellow and sometimes wilt or drop. If apricot leaves have chewed edges or holes, earwigs, citrus cutworm or western tussock moth are probably to blame. Scale insects are more difficult to recognize as they often resemble lesions of leaves or stems. Be sure trees are regularly getting watered to a soil depth of 18 to 24 inches (45 to 60cm). Apricot (Prunus armeniaca) is a fruit tree that is part of Rosaceae family. Tiny creatures puncture leaves and suck the cell contents causing lightly colored or yellow dots, called stippling. You don’t have to see them to know they are there. There are many types of apricot disease, though most are caused by the usual suspects bacteria or fungus. Native to China, apricot trees (Prunus armeniaca) were introduced to the U.S. in the 18th century and grow in U.S. Department of Agriculture plant hardiness zones 4 through 9. These problems include: Problems with the health of the tree can also affect the color and shape of the leaves, as well as causing leaves to fall off of the tree.
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