The Pecan tree is a native tree to North America. When early European settlers traveled across the sea to settle in the New World, they found pecan trees located in numerous places in this new land. Since then, the pecan tree has become one of the most important orchard species in terms of acreage. Indians began using pecans almost 8000 years ago in what is now Texas. The first budded pecan trees were produced in Louisiana in the mid-1800s and orchards have been established throughout the Southern states. The first recorded shipment of pecans to England was documented in 1761, by Spanish and European explorers (Anderson and Crocker, 2004). In 1917, a commercial shipment of pecans came out of Georgia and since then, Georgia has been the leading producer of pecans. Although Georgia is the leading producer, in some years collections of pecans from wild trees in Oklahoma and Texas surpass the production in Georgia.
The life cycle of a pecan tree has four main components: germination, rooting, sprouting and lifespan and reproduction. The many different elements of the pecan tree life cycle contribute to the growth and development of the pecan trees we see today. The life cycle of a pecan tree has many different elements. The cycle begins with the spreading and germination of seeds. Mature pecan trees produce and drop thousands of seeds to the ground during the fall season. Dispersal of these seeds may be through the water, wind or animals but wind will end up pollinating the seeds. Pecan tree seeds lay dormant throughout the winter and will begin the growth process in the spring. The seeds require an adequate amount of warmth and rain throughout the winter and early spring months. Once the germination process has finished, the seed...
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...l, Ted E., and Bruce W. Wood. "Movement of adult pecan weevils Curculio caryae within pecan orchards." Agricultural & Forest Entomology 10, no. 4 (November 2008): 363-373. Academic Search Complete, EBSCOhost (accessed April 18, 2012).
Anderson, P.C., and T.E. Crocker. "The Pecan Tree." Solutions for Your Life: University of Florida IFAS Extension (2004). Web. 18 Apr. 2012.
Christman, Steve. "Floridata: Carya Illinoinensis." FLORIDATA. Floridata.com LC, 30 Aug. 2000. Web. 18 Apr. 2012. http://www.floridata.com/ref/c/cary_ill.cfm.
Wells, Lenny. "Nutritional, Environmental, and Cultural Disorders of Pecan." The University of Georgia Cooperative Extension (2010): 1-12. Web. 19 Apr. 2012.
Ree, Bill. "Pecan Insect Pests." Pecan Kernel. Department of Entomology, Texas A&M University. Web. 19 Apr. 2012. http://pecankernel.tamu.edu/pecan_insects/pests/index.html.
Terry Kay’s father cultivates fruit trees. Fruit trees generally live for approximately ten years then die off. It takes fruit trees three to five years before they will bear fruit. Overall fruit trees require a short term commitment. Although Kay’s father became famous for his well grown trees, it did not require the dedication and time that Sam Peek had to exert for his pecan trees.[b2] In the novel Sam Peek has dedicated his life to the growth and production of his pecan trees. Pecan trees take at least five years to yield fruit and can live up to seventy-five years. They take much more time and effort to yield profit. Cultivating pecan trees is a life long project. In the novel Sam Peek dedicates his life to the care of his pecan trees. In his old age, when he is retired from the tree business, he still has the commitment to go to the pecan orchard and pull weeds. This shows Sam Peeks strong bonds to his life and family[b3]. He is very much tied down to the land around his family home. His dedication to his trees is because he wishes to provide a good life for his family. He pours a lot of effort into this wish.
McKenna, Verna J. "YTURRIA, FRANCISO." 08 March 2011. Handbook of Texas Online. Web. 5 May 2014.
ImageText BoxImageOne of the biggest threats to the environment of Ontario is the Gypsy Moth (Lymantria dispar dispar). The species itself is native to Europe and Asia. How this affects us is by weakening trees across Ontario and North America. The first time the gypsy moth was found in Ontario was 1969. The gypsy moth can be found in southern Canada (Ontario), New Brunswick, Nova Scotia and British Columbia. It is known to weaken trees and the caterpillar form live in trees and during most outbreaks its caterpillar feces would fall from the trees to the ground or even on top of humans. The average Gypsy Caterpillar can grow 5-6 centimeters long. With five pairs of blue spots and six pairs of bright red dots on their back. The female moth are white and can fly on the other hand, the male moth are brown and can also fly. The female have a 5cm wing span but male have a 2.5cm wing span. The gypsy moth usually lives in open forests and other forests and take up at least 20% of the space. The Gypsy moth are about 4cm long, tan coloured and can be located on tree trunks, furniture, and buildings. (OFAH Invading Species Awareness Program, 2012)
"Introduction for Creating Habitats and Homes for Illinois Wildlife." DNR. Web. 14 Sept. 2011. .
The American chestnut was not only an important food source for almost all living organisms of the Eastern, North America, but it was very important in providing housing and furniture and numerous other wooden necessities. The tree possessed rot resistant properties and strait grained wood which were valuable in buildings and many other applications. Its enormous trunk rose one-hundred feet into the canopy of the forest. Diameters of five feet have been recorded and many photos of the tree show greater trunk girths. The tree was able to produce its eatable fruit within seven years of germination. It was said to be truly treasured by early Americans.
Cranshaw, Whitney. "Nuisance Wasps and Bees." Nuisance Wasps and Bees. Colorado State University, 08 Jan. 2014. Web. 31 Mar. 2014.
One of the methods to acquire food for the Cahuilla was through Gathering and Harvesting seasonal foods. One of the most notable food the Cahuilla’s enjoyed was the Pinion Nuts. Pinion Nuts derive from a pine tree that is local to the South Western California and upper Mexico. The pine tree contains a small edible s...
Redwoods were named for the color of their bark and heartwood. These trees have a high resistance to fungus and diseases due to the high tanin content in the wood. The dense, fibrous bark has an even higher content, and acts as an insulator from periodic fires which have plagued the countryside for centuries. Though these trees are immense, they have delicate foliage. The needles are narrow and sharp-pointed, and combine to form feathery sprays. The cones are an inch long and typically contain fourteen to twenty-four seeds. The older trees offspring sprout form their parents' roots in order to take advantage of the established root system.
Cox, P. W., & Leslie, P. (1999). Texas Trees: a Friendly Guide.. U.S.A: Corona Pub. Co..
Global climate change and intensifying temperatures over the past several decades have resulted in shifts in vegetation distribution. With increasing temperature and water deficits, this brings along with it, tree mortality. Tree mortality and environmental changes is the perfect recipe for a change in forest and woodland composition. Bottomland trees such as some oaks and the Magnoliaceae family can’t live in these changing areas anymore and die out. They are found more often by streams or some form of water, where these plants can stay hydrated most the year. The species that regenerate from the light gaps left behind after the dieback are more hardy trees that can handle more dry and hot temperature for longer periods of time.
(Minifie B.w, 1989) The cocoa tree (Theobroma cacao) is a surprising tree, which is growed in certain constrained ranges and atmosphere conditions; it is a local of thick tropical timberlands of the Amazon where it develops in semi shade, and high modesty and it is accepted to have spread regularly westwards, and northwards to Guyana and Mexico then later headed to the Caribbean islands. (Morganelli A, 2006) the cocoa tree first develop in rainforests of south and focal America, Its first cultivator s from harvests to trees where the aged Mesoamerican and most cocoa trees are developed in spots close to the equator where the climate is constantly hot and wet. (Backett S.t, 2008) To be called ''...
Roe Daphne A. 1973. A plague of corn: the social history of pellagra. Ithaca, London: Cornell University Press.
...ute of Food and Agricultural Sciences." Monroe County Extension Office – Solutions for Your Life - UF Institute of Food and Agricultural Sciences. 2011. Web. 19 Mar. 2011.
Forensic entomology is the study of insects and arthropods and their relation to a criminal investigation. Forensic entomology can determine the postmortem interval (PMI) or how long since the descendants’ death, whether the body has been moved since expiring, and what injuries may have been sustained (Ryan, 2011). When decomposition begins, insects establish a colony to lay eggs on the remains; these eggs will hatch into larvae that will eat the human organs and tissues. Forensic entomologists can determine the specific insects present in the body and estimate how long a body has been left exposed by examining the stage of development of the fly larvae; however, these findings are not always plausible. The fly larvae look and act different at each stage of development. The time required for stage development is not only affected by environmental influences such as geographical location, climate, and weather conditions, but also by type of insect. The forensic entomologist must consider these conditions when estimating the postmortem interval. Knowledge of insects, their life cycles, and their habits make entomological evidence a priceless tool for an investigation. Forensic entomology has proved its significance in a number of cases; though circumstances such as weather, temperature, and time of year clearly affect the development of insect infestation, and the expert must keep these in the forefront of his/her mind (Innes, 2000).
On the second article,"Dig Deeper" it explains what arborists do we when a tree is about to