Sphaerulina Rubi
Raspberry leaf spot is a plant disease caused by ''Sphaerulina rubi'' (syn. ''Cylindrosporium rubi''), an ascomycete fungus. Early symptoms of infection are dark green spots on young leaves. As the disease progresses, these spots turn tan or gray in color. Disease management strategies for raspberry leaf spot include the use of genetically resistant raspberry plant varieties, chemical fungicide sprays, and cultural practices such as pruning and thinning out canes. Raspberries are an important fruit, mainly grown in Washington, Oregon and California.Hanson, Eric, Mike Von Weihe, Annemiek Schilder, Ann Chanon, and Joseph Scheerens. "High Tunnel and Open Field Production of Floricane- and Primocane-fruiting Raspberry Cultivars." HortTechnology 21.4 (2011): 412-18. Web. http://horttech.ashspublications.org/content/21/4/412.full.pdf+htmlGeisler, Malinda. Agricultural Marketing Resource Center, Iowa State University http://www.agmrc.org/commodities__products/fruits/raspberries/ Althoug ...
[...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  

Raspberry
The raspberry is the edible fruit of a multitude of plant species in the genus ''Rubus'' of the rose family, most of which are in the subgenus '' Idaeobatus''. The name also applies to these plants themselves. Raspberries are perennial with woody stems. World production of raspberries in 2020 was 895,771 tonnes, led by Russia with 20% of the total. Description A raspberry is an aggregate fruit, developing from the numerous distinct carpels of a single flower. What distinguishes the raspberry from its blackberry relatives is whether or not the torus (receptacle or stem) "picks with" (i.e., stays with) the fruit. When picking a blackberry fruit, the torus stays with the fruit. With a raspberry, the torus remains on the plant, leaving a hollow core in the raspberry fruit. Raspberries are grown for the fresh fruit market and for commercial processing into individually quick frozen (IQF) fruit, purée, juice, or as dried fruit used in a variety of grocery products such as ras ...
[...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]