Biotic Disorders Flashcards
One of a number of separate plants of certain obligate pathogens e.g. rust fungi or insects e.g., adelgids On which success of life stages develop
Alternate host
Disease caused by a fungus that induces expanding spreading necrosis of leaves and succulent shoots and produces asexual spores in small blister like fruiting bodies called acervulii
Anthracnose
One of a large group of invertebrates with jointed appendages segmented bodies exoskeletons (Insects, mites, and spiders)
Arthropod
Minute usually single celled organisms having a cell wall but no organized nucleus and reproducing by fission some species of plant pathogens
Bacteria
Insect of order Coleoptera That feeds and reproduces and galleries produced in the inner bark and bark-sapwood interface of trees
Bark beetle
Pertaining to living organisms
Biotic
Disorder caused by a living organism
Biotic disorder
Any disease or disorder regardless of the causal agent that rapidly the kills flowers, leaves, and young Stems That are typically retained i.e. not shared by the plant
Blight
Irregularly shaped necrotic area and leaf stem or fruit
Blotch
Any of several insects that tunnel into would potentially causing severe damage usually the larvae of certain moths and beetles
Bored
Discrete, localized, usually necrotic areas on stems, roots and branches; often sunken and discolored most canker disease is require laboratory isolation and microscopic and examination to positively identify
Canker
Larvae of insects in the order Lepidoptera
Caterpillar
Insect with mouthparts adapted for feeding by chewing e.g. Beetles and caterpillars
Chewing insects
Biotic or a biotic agent a disease or disorder or disease
Causal agent
Whitish or yellowish leaf discoloration caused by lack of chlorophyll; often caused by nutrient deficiency
Chlorosis
Disorder or disease occurring a recurring over a very long period of time typically multiple growing to seasons
Chronic
Conceptual model explaining development of specific recognizable disorders resulting from the interaction a predisposing inciting and contributing factors that act in succession over a prolonged period of time resulting in progressive deterioration in tree health.
Decline disease
Loss of leaves from the tree or other plant by biological chemical or mechanical means as opposed to natural shedding
Defoliation
Result of interaction overtime of a pathogen or abiotic agent with a susceptible host and a Conducive environment to interfere with one or more physiological functions or structures
Disease
Combination of factors involved in development of a disease
Disease complex
Conceptual model showing three factors required for plant disease susceptible host pathogen or abiotic agent and a conducive environment
Disease triangle
Downward twisting curling or bending of a leaf blade or shoot that may result from disease or herbicide injury
Epinasty
Mites in the family Eriophyidea; Typically smaller than other lights requiring higher magnification to see an afternoon decent development of life goals
Eriophyid mites
Fecal material and or wood dust or shavings produced by insects
Grass