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Wednesday, January 22, 2014

Pink Bollworm - Invasive Species

Unit 2 Individual Work 1 environmental Science The pink bollworm is invasive species that Ive decided to utilisation for this weeks assignment. This species is a pest to totally cotton plant farmers. Pink bollworms be a native of somewhere in Southern Asia, scarce it was firstly detected in Texas cotton in 1917. The extraction was traced to cottonseeds shipped from Mexico to Texas. instanter they be all over the world in countries much(prenominal) as Pakistan. The adult pink bollworm is a small, thin, gray moth with adorn wings. The larva is a dull white, eight-legged caterpillar with conspicuous pink bar on its dorsum. The larva reaches one half inch in length. It resembles a caterpillar. The further difference is the fact that it is pink. Its life cycle is the selfsame(prenominal) as both moreoverterfly/moth. The caterpillar forms a pupa or cocoon, then later on a couple of weeks it transforms into a moth. hence they mate and replicate. This luxuriously site of reproduction makes it really impenetrable to ward pip this species from just being an insect, to becoming an all out travesty. in that location are a lot of pests who potentially ruin crops, but the pink bollworm ruins cotton crops the worst. They feed on the seed which alter the crops to grow, and they destroy the lint quality as well. It leaves jaundiced spots/stains in the lint, therefore has to be sold at a discounted rate on the international market. (Ahmad, n.d.) These insects impact are so devastating because different types of rules have been tried in order to keep back infestation, but none prevailed. The latest method of sterilizing the males was supposed to retain them from fertilizing the female eggs. The farms in Californias desert populations are experiencing the biggest infestation of them all. Non-native species usually are more than detrimental to places they are not from. So their effects are way worsened than in Sout hern Asia, where they originate from. In A! frica, they have hail on farmer roughly 20 30% of cotton per year. In turn, impacting their sales as...If you want to involve a plentiful essay, order it on our website: OrderCustomPaper.com

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