A crop Cloze (1): JXUwMDI4JXUwMDE1JXUwMDE2JXUwMDA3 is a living organism that destroys crops directly or Cloze (2): JXUwMDMxJXUwMDA3JXUwMDBhJXUwMDBkJXUwMDFiJXUwMDE3JXUwMDA2JXUwMDE3JXUwMDE4JXUw MDE1 by introducing pathogens into the plant. Cloze (3): JXUwMDA4JXUwMDM1JXUwMDE2JXUwMDA3JXUwMDA3 cause a lot of damage to crops in the field and Cloze (4): JXUwMDJiJXUwMDA3JXUwMDFiJXUwMDFkJXUwMDE3 .Heavy infestation pests lower crop yield and Cloze (5): JXUwMDI5JXUwMDA0JXUwMDE0JXUwMDBkJXUwMDA1JXUwMDFkJXUwMDBk .The battle against pests is very expensive.It increases the Cloze (6): JXUwMDNiJXUwMDBjJXUwMDFjJXUwMDA3 of production thus lowering farmers profits.There are several methods of controlling Cloze (7): JXUwMDI4JXUwMDE1JXUwMDE2JXUwMDA3JXUwMDA3 namely quarantine,physical measures,cultural methods,biological pest control and Cloze (8): JXUwMDNiJXUwMDBiJXUwMDBkJXUwMDA4JXUwMDA0JXUwMDBhJXUwMDAyJXUwMDBk methods.