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Dibotryon morbosum is a fungus that affects the genus Prunus. Included in this genus are multiple species of trees and shrubs, such as: Dibotryon morbosum infects are Prunus serotina (wild cherry trees), Prunus persica (peach trees), Prunus domestica (plum trees), and Prunus cerasus (sour cherry trees). [3]
Brachycaudus helichrysi is a serious pest of stone fruits. It forms dense colonies on the underside of the leaves of the primary host causing curling, [4] twisting and distortion of the foliage, the shedding of flowers and the dropping of young fruit. [8] It is one of several species of aphid that can transmit the virus that causes plum pox. [8]
The pear slug is an important pest that eats leaves of cherry, pear, and plum trees, leaving behind a skeleton of veins. The larvae cover themselves in green slime, making themselves unpalatable to predators. The larva molt between five and eight times before being fully grown. [1]
Slugs will also eat leaves like those on hosta plants. Slugs follow their slime trails back to their homes, so you can find them this way if you want to capture and release the garden pest elsewhere.
Chokecherry is a suckering shrub or small tree growing to 1–6 metres (3 + 1 ⁄ 2 – 19 + 1 ⁄ 2 feet) tall, rarely to 10 m (33 ft) and exceptionally wide, 18 m (60 ft) with a trunk as thick as 30 centimetres (12 in). [4] The leaves are oval, 2.5–10 cm (1–4 in) long and 1.2–5 cm (1 ⁄ 2 –2 in) wide, with a serrated margin. [5]
The American plum grows as a large shrub or small tree, reaching up to 4.6 metres (15 feet). [12] It is adapted to coarse- and medium-textured soils, but not to fine soils (silt or clay). Beneficially, the shrub survives harsh winters, down to temperatures of -40 degrees (Fahrenheit); [ 13 ] but has little tolerance for shade, drought, or fire.
The bullace may be found as a small tree, growing to around 8 metres in height, or as a bush, distinguishable from the sloe by its broader leaves and small number or complete absence of spines. There is, however, a wide variation between trees in different districts due to hybridization and local selection.
Prunus angustifolia, known commonly as Chickasaw plum, Cherokee plum, Florida sand plum, sandhill plum, or sand plum, [3] is a North American species of plum-bearing tree. It was originally cultivated by Native Americans before the arrival of Europeans. [4] [5] [6] The species' name angustifolia refers to its narrow leaves.