This plant belongs to the family Hydrocharitaceae, its common name hydrilla or water thyme. This is a submerged aquatic weed that usually form dense frupos, anchored in the ground and base branches out to the surface. Although this plant is included in the U.S. Federal Noxious Weed List, it can be found in aquarium stores or pet stores.

The "Chilli thrips Scirtothrips dorsalis or an insect is a native of Southern Asia, the first report in the Caribbean was in 2003 on the island of San Vicente and later in Santa Lucia. In 2006 was detected in Puerto Rico, in rose plants. lnsecto arnplia polyphagous of worldwide distribution. reported as important pest in many vegetable, fruit and omamentales for its high capacity as a transmitter of the virus. Attacks over 110 hosts from 40 families of plants: tomatoes, peppers, habichuclas, bercnjena, corn, soybeans, peanuts, roses, jasmine, ficus, mango, bananas and citrus, among others.

Recently it was reported in Puerto Rico the presence of Papilio demoleus. Known as "Lime Butterfly or Lime Butterfly. "The first specimen was found by: Nicholas T. Homziak Guanica, PR 4/III/2006. The first record of USDA APHIS PPQ interception was determined by Lionel Norberto Pagan and intercepted by Gabriel, in Bo. La Luna de Guanica P.R. emerged from the pupa on 06/06/2006 (via e-mail communication with M. Calero-Toledo Lymari PPQ Technician Assistant L/A- Entomology, October 23, 2006).

The red palm mite (ARP), Raoiella suggests, first reported in Puerto Ricoma on the island of Culebra, in October 2006. Represents a new species of invasive pest that threatens ornamental palm plantations, coconuts, bananas and plantains.

The coffee berry borer Hypothenemus hampei (Ferrari) (Coleoptera: Scolytidae), is among the most important pests in this crop and is a serious threat to coffee production. It is native to East Africa, Uganda in the region near Lake Victoria. In the early twentieth century, was spread on coffee beans to Java, Sumatra and Brazil (Anonymous, 1986). Fleiotiaux in 1901, was first reported as a pest of coffee. Reports indicate that the plague appeared in Java in 1909 and 1910. In 1918 it was reported in Sumatra and in Sao Paulo in Brazil. In 1922 he established the first quarantine, when Serratet, Minister of the French colonies imposes restrictions on the introduction of plant products. Scientists are currently conducting studies for pest control in affected countries.