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causes and effects of disease in agriculture production - Coggle Diagram
causes and effects of disease in agriculture production
importance
stringent biosecurity - reduce disease transmission in animals
e.g., beef is exported that costs $9269m and is shared to 19.9% of the world
footrot in sheep
cause
presense of dichelobacter nodosus
long, dense and wet environment e.g. soil and temperature should be warm
overgrown hooves
incease human population
import infectious livestock and plants nto australia
changing land use
deforestation and irrigation practices
effect
loss of genetic diversity
needs to evolve in response to a disease threat
increase in hobby farmers
loss of economic value of animals
loss of fertility in females
low growth rates
human illness and disease
death of animal
loss of appetite in animal
about
infectious disease in hooves of sheep, goats or cattle
caused by pathogenic bacterium Dichelobacter nodosus
panama disease of bananas
about
north queensland produce 95% of australian bananas
panama is caused by a highly contagious fungus fusarium oxysporum
it caused yellowing and wilting of leaves, spliting of stem
damaged tissue therefire plants starve of water and food.
cause
temperature variation
light availability
chemical agents
water quantity and quality
nutrient availability in soils
effect
biological effects on the individual plant
symtoms
dealth of plant
loss ability to balance water or produce food - loss of photosynthetic tissue
abnormal growth
interferes with production, distribution and action of hormones
destruction of tissues
pathogen attachment and invasion of cells to cause cell death
discolouration of tissues
leaves turn yellow as production of chlorophyll is reduces
wilting
plant loses more water than it takes up which cause root damage
soical and economic effects on the farmer
social and economic effects on australia's economy