Francisco asked a small audience of participators sitting in the Arboretum. Examples he gave included mosquitoes, rats, fire ants and killer bees. Francisco started the hour-long discussion talking about mosquitoes, which are commonly attracted to carbon dioxide, and are both male and female. And the female mosquitoes are the ones that take your blood, not the males. The female then uses the blood to help lay her eggs Francisco explained.
Mosquitoes can also carry diseases such as malaria, and require water to complete their life cycle.
Poorly kept pools and stagnant water are the primary sources of infestation. Just as mosquitoes flock to dirty water, rats appreciate they're own untidy habitat. They nest in overgrown shrubs, trees and other forms of vegetation. Every city has them. Although the dominant rats are primarily nocturnal, Francisco said that when someone sees a rat during the day, that usually means the rat population is a lot higher.