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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 species was first described by Carl Linnaeus in his landmark 1758 10th edition of Systema Naturae. They are not slugs but are a kind of sawfly of the family Tenthredinidae . The pear slug is an important pest that eats leaves of cherry, pear, and plum trees, leaving behind a skeleton of veins.
It is considered to be a pest insect, with the larvae living and eating from a variety of stone fruit and alder trees. [2] [4] In particular, this species is known to cause damage to the leaves of plum, damson, [1] and cherry trees. [5] In Japan and China, the caterpillar is also known to eat apple and pear trees. [8]
Peach tree leaves displaying various stages of the shot hole disease: brown spots on the leaf with conidium holders in the middle (center) that eventually fall off, leaving BB-sized holes behind (left) Shot hole disease of apricot leaves. The fungal pathogen Wilsonomyces carpophilus affects members of the Prunus genera. Almond, apricot ...
Chondrostereum purpureum is a fungal plant pathogen which causes Silver leaf disease of trees. It attacks most species of the rose family Rosaceae, particularly the genus Prunus. The disease is progressive and often fatal. The common name is taken from the progressive silvering of leaves on affected branches.
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] The main symptom of Dibotryon morbosum is its “knot-like” gall structure. These knots can vary ...
Prunus maritima, the beach plum, [3] is a species of plum native to the East Coast of the United States. It is a choice wild edible and its few pests and salt tolerance make it a resilient fruit crop for degraded lands and urban soils.
Prunus gracilis grows up to 1.8 metres (6 feet) tall, has five-petaled leaves, and fruits ripen June–August. [4] It grows in clusters and thickets. [ 5 ] It is hermaphroditic and pollinated by insects.