Rodents types and characteristics, damage and losses by rodents, signs of infestations by WALLACE MUKOKA

289 views 14 slides Dec 04, 2021
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About This Presentation

Rodents types and characteristics, damage and losses by rodents, signs of infestations. How to control rodents in agriculture? Are rodents harmful to crops? What are the post harvest management done for rodents?


Slide Content

Rodents types and characteristics, damage and losses by rodents, signs of infestations BY WALLACE MUKOKA

TYPES OF RODENTS AND CLASSIFICATIONS

HYSTRICOMOROPHA Cavia (guinea pigs) Erethizon (north America porpupines ) Octodontomys (mountain degus) Atherurus (brush tailed porcupines)

SCIUROMORPHA Tamias (chipmunks) Glaucomys (new world flying squirrels) Aplodontia (mountain beavers)

Myomorpha Divided into 2 Dipodoidea Cardiocranius ( pygmy ierboas ) Zapus (jumping mice) Sicista (birch mice) CONTINUATION OF TYPES OF RODENTS

CONTINUATION ii Muroidea Rattus ruttus (black rat) Ratus norvegicus ( brown rat) Ruschis rat Mus musculus

CHARACTERISTICS OF RODENTS: MYOMORPHA Molar cusps arranged in two parallel longitudinal rows They have a total of 16 teeth with no premolars, and rooted molars Famous for their gnawing ability  have cusps arranged in three rows enlarged temporalis muscles, making them able to chew powerfully with their molars Destroying the storage roofs the house mice are very good climbers  are able to use very small openings for their size

Ruttus ruttus

CHARACTERISTICS OF RODENTS: MYOMORPHA Molar cusps arranged in two parallel longitudinal rows They have a total of 16 teeth with no premolars, and rooted molars Famous for their gnawing ability  have cusps arranged in three rows enlarged temporalis muscles, making them able to chew powerfully with their molars Destroying the storage roofs the house mice are very good climbers  are able to use very small openings for their size

DAMAGES AND LOSSES Economic losses and illness caused by their consumption and contamination of stored grain. Economic and property losses caused by their burrowing and gnawing habits Fire hazards resulted from their gnawing on electricity wires and cables. Poor grain condition due to urine Damaged roofs Damaged walls

SIGNS OF INFESTATION Droppings Nesting material such as fabrics, shredded papers and dried plant matter Signs of chewing on grain Holes bored through walls and floors that create entry point into homes Urine stains on walls Live and dead rodents

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