Introduction The relationship between predators and prey is a complex interaction that involves many factors that may affect the stability of various populations. The relationship between insectivorous plants of birds' feeding and their different insect species is one of the attracting attention in recent years. Southern Pine Beetle in the South East, Jade Ash in the Northern Midwest, and Bark Beetle in the Northwestern Pacific are killing a variety of trees, including pine and ash.
Destruction of American ash trees by emerald grasshoppers has put the city into multiple problems. When an emerald grasshopper is first introduced into a new area, half of all ash trees will die in about 8 years. The remaining trees will die within three years and as the rainwater runoff increases the city will be in need, dealing with millions of dead trees and responsibility issues. Some cities add insecticide to ash trees, but it is expensive but it is valid for about 3 years. Through strategic applications, harbors can process wood from diseased trees through afforestation programs and partnerships with companies, which can increase time to solve problems. For example, in New York, companies specializing in aged lumber are gaining great attention in the market.
Emerald grasshoppers first appeared in the United States in 2002 and is a slender beetle of East Asian origin. It is believed that it arrived in the United States for packaging materials and destroyed the entire Ashtree population of Detroit. Pests now spread to 22 states, including New York State, Missouri State, Tennessee State and many other states. Europe is also fighting Ashtree disease, also known as ash. This condition is caused by infection of fungus Chalara. Researchers from 34 countries have focused on fungal infections during the effort to determine how to fight a fungal infection for 4 years. This fungus was born in East Asia and spread to Eastern Europe in the early 1990s. Since then, it has spread all over Europe. By 2012, 90% of Denmark's Ashtree population died of Ash death