8.1+BBTV+Infestation

.**What is the Banana Bunchy Top Virus?** Banana Bunchy top virus is one of the most serious diseases of banana. Once established, it is extremely difficult to eradicate or manage. The virus is spread from plant to plant by aphids and from place to place by people transporting planting materials obtained from infected plants. (C.T.A.H.R,1997)

Control of banana bunchy top virus is achieved by killing the banana aphids then destroying all infected material. To control the spread the aphids carrying the virus should be killed on the infected banana mat and also destroy the infected the mat. Banana mats usually consist of several plants, all coming from one underground corm. Infected banana plants can be first sprayed with an insecticide like Sevin, or simply soapy water. Spray only the whorl and upper part of the trunk to kill the aphids, which like to hide deep in the central whorl. (University of Guam, 2008)
 * Prevention**


 * Banana Plantation per hectare:**


 * Banana Distribution throughout island **
 * Banana Distribution throughout island **





__**Spread of Disease:**__ ||
 * **Days** || **Number of Plants Infected**
 * 0 || 1 ||
 * 20 || 2 ||
 * 40 || 6 ||
 * 60 || 120 ||
 * 80 || 720 ||
 * 100 || 5040 ||
 * 120 || 40320 ||
 * 140 || 362880 ||

__**Government need to know how long they have left:**__

From the discovery of the first infected plant the government will have to act fast to prevent a full scale infection. From day 0 (First discovery) you have 20 days until the virus spreads and starts to become unmanageable. It will take 140 days for the entire islands plantation of bananas to be infected. As it can take up to 6 weeks for the virus to be destroyed the government will need to control the outbreak while it is still in the port plantation.

Plantation D contains 90,459 banana plants on 35.6 hectares of land. With the outbreak of BBTV on the island it will take 140 days until the virus has totally decimated the entire plantation. Losing the banana plantation closest to the Lumber Yard will cost the island $3,632,060.10 of the total banana yield. The whole islands banana's plantation will be infected by 140 days of the disease outbreak. By day 140 theoretically 362,880 plants would have been infected by the virus more then enough to cover the entire islands 287,729 plants.
 * Plantation D (closest to Lumber Yard settlement) / Whole Island**

__**Who we need to advise:**__ -Banana growers in all plantations will need to be informed of the danger the BBTV possesses so they can take precautions for their own plantations.
 * Recommendations-**
 * -** The government would be the first of which we would advice. Once the government as been told the people who live on the island will need to be informed.

__**Financial affect:**__

The current export prices for The Island bananas are $994/tonne and one hectare of bananas costs $102,024.16. Therefore as there are 109.3 hectares altogether there is a possibility that the island will have a loss of  $11,115,230.68 of revenue if all of our bananas are to be infected.

C.T.A.H.R (1997.) //Banana Bunchy Top Virus.// Retrieved on August 19th from [] University of Guam. (2008, March 17). //Banana Bunchy Top Virus.// Retrieved August 19, 2011, from Banana Bunchy Top Prevention and Control: http://www.wptrc.org/userfiles/file/Bantop.pdf 
 * __References:__**
 * Days || Number of Plants ||
 * 0 || 1 ||
 * 20 || 2 ||
 * 40 || 6 ||
 * 60 || 120 ||
 * 80 || 720 ||
 * 100 || 5040 ||
 * 120 || 40320 ||
 * 140 || 362880 ||