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Obj. 9


Biennial Weed completes its life cycle in 2 years
Instars a phase between two periods of molting in the development of an insect larva or other invertebrate animal
Noxious Weed a plant considered harmful to animals or the environment
Vector an organism that attaches another DNA to itself to put in another organism
Nematodes a worm of the large phylum Nematoda, such as a roundworm or threadworm
Insect a small arthropod animal that has six legs and generally one or two pairs of wings.
Chemical Control Synthetic pesticides are generally only used as required and often only at specific times in a pests life cycle. Many of the newer pesticide groups are derived from plants or naturally occurring substances
Metamorphosis (in an insect or amphibian) the process of transformation from an immature form to an adult form
Casual Agent refers to the biological pathogen that causes a disease, such as a virus, parasite, fungus, or bacterium.
Perennial Weed plants that live for several years
Hyphae each of the branching filaments that make up the mycelium of a fungus
Diseases a disorder of structure or function in a human, animal, or plant, esp. one that produces specific signs or symptoms or that affects a specific location and is not simply a direct result of physical injury.
Disease Triangle A pathological condition of a part, organ, or system of an organism resulting from various causes, such as infection, genetic defect, or environmental stress, and characterized by an identifiable group of signs or symptoms.
Bacteria a member of a large group of unicellular microorganisms that have cell walls but lack organelles and an organized nucleus, including some that can cause disease.
Annual Weed completes its life cycle in one year
Biological Control the control of a pest by the introduction of a natural enemy or predator.
Pesticide Resistance crops with the ability to resist insects
Cultural Control the practice of modifying the growing environment to reduce the prevalence of unwanted pests
Arachnid an arthropod of the class Arachnida, such as a spider or scorpion.
Viruses an infective agent that typically consists of a nucleic acid molecule in a protein coat, is too small to be seen by light microscopy, and is able to multiply only within the living cells of a host.
Eradication eliminate completely
Key Pest pest around which management programs are built. Examples are codling moth, oriental fruit moth and cherry fruit fly.
Quarantine separate from others; isolation
Fungi a taxonomic kingdom, or in some classification schemes a division of the kingdom Plantae, comprising all the fungus groups and sometimes also the slime molds.
Pathogens a bacterium, virus, or other microorganism that can cause disease.
Created by: BiotechBritt