Tree An area of woodland composed primarily of trees established by planting or artificial seeding is known as a plantation. Trees are the source of many of the world's best known fleshy fruits. Apples, pears, plums, cherries and citrus are all grown commercially in temperate climates and a wide range of edible fruits are found in the tropics. Other commercially important fruit include dates, figs and olives. Palm oil is obtained from the fruits of the oil palm ("Elaeis guineensis"). The fruits of the cocoa tree ("Theobroma cacao") are used to make cocoa and chocolate and the berries of coffee trees,
Cacao necrosis virus an effective cultural control method. This does not prevent new spread although spread is greatly reduced due to the limited dispersal of the nematode vector and subsequent monocyclic cycle of disease No resistant strains have been produced, though a resistant cacao tree may be the best possible management option looking forward. A similar transgenic approach taken to combat papaya ringspot virus could work for cacao based on the type of vector transmission. Seed transmission is estimated to be up to 24% depending on the plant species so cacao plantations should be planted from clean seed stock. This disease is currently