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Grias cauliflora, the anchovy pear, [3] [4] [5] (also called the river pear) is an evergreen fruit tree native to Jamaica, Central America, and Colombia. It is often found near rivers or marshes in large colonies.
The fruit is 6–15 cm (2.4–5.9 in) long, with a fleshy coat; it is edible in several species. [ 4 ] [ 5 ] [ 6 ] Grias neuberthii extracts show in vitro activity against human cancer cells.
Rust, Kern's pear Gymnosporangium kernianum. Rust, Pacific Coast pear Gymnosporangium libocedri. Rust, pear trellis (European pear rust) Gymnosporangium fuscum. Rust, Rocky Mountain pear Gymnosporangium nelsonii. Side rot Phialophora malorum. Silver leaf Chondrostereum purpureum. Sooty blotch Gloeodes pomigena. Thread blight (Hypochnus leaf blight)
Over 3000 cultivars of the pear are known. [1] The following is a list of the more common and important cultivars, with the year and place of origin (where documented) and an indication of whether the pears are for cooking, eating, canning, drying or making perry.
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Psylla pyri damages pear trees by sucking the plant sap; leaves are yellowed and distorted and flower buds and fruitlets are shed. The excess honeydew produced by the insects coats the leaves, covering up the stomata, and encourages the growth of sooty mould. The size of fruit is decreased and tree growth is diminished. [2]
In southern Germany apple and pear trees have been a part of the landscape for a long time, and are difficult to protect. The decline of apple and pear trees from their landscape can be expensive to replace and could have a negative effect on tourism. In the long-run, fire blight is a very important factor of economy and society. [citation needed]
Other symptoms to note: This condition is itchy and can cause dandruff and buildup on the scalp. It’s also common on other oily areas, like the face and chest , and can be difficult to treat. Dr.