Wednesday, February 5, 2014

Pink Bollworm - Invasive Species

Unit 2 Individual Work 1 environmental Science The pink bollworm is invasive species that Ive decided to spend for this weeks assignment. This species is a pest to totally cotton fiber farmers. Pink bollworms ar a native of somewhere in Southern Asia, merely it was firstly detected in Texas cotton in 1917. The ascendent was traced to cottonseeds shipped from Mexico to Texas. instanter they ar 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 along its dorsum. The larva reaches one half inch in length. It resembles a caterpillar. The exactly difference is the fact that it is pink. Its life cycle is the selfsame(prenominal) as either onlyterfly/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 risq ue lay out of reproduction makes it really impenetrable to ward take out this species from just being an insect, to becoming an all out travesty. at that place 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 crushing because different types of rules have been tried in order to interrupt 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 Southern Asi a, where they originate from. In Africa, t! hey have personify on farmer roughly 20 30% of cotton per year. In turn, impacting their sales as...If you want to involve a sufficient essay, order it on our website: OrderCustomPaper.com

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