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    Rodents Importance and Management Presentation

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    Romally Antonette Tagnipez
    Rodents play an important economic role, as a single rice field rat can damage 30 rice tillers per night. They have continually growing incisor teeth and no canine teeth. Their populations can increase rapidly due to early maturity, short reproductive cycles, large litter sizes, and post-partum estrus. Effective rodent management requires integrating physical controls like hunting, burrow management, and flame throwing with rodenticides like zinc phosphide and coumatetralyl, as well as cultural practices like sanitation, synchronous planting, land preparation, and water level management. Timing of controls is important to target rodent population peaks. Farmers also improvise controls using predators like cobras and raptors.

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    Rodents Importance and Management Presentation

    Uploaded by

    Romally Antonette Tagnipez
    45 views30 pages
    Rodents play an important economic role, as a single rice field rat can damage 30 rice tillers per night. They have continually growing incisor teeth and no canine teeth. Their populations can increase rapidly due to early maturity, short reproductive cycles, large litter sizes, and post-partum estrus. Effective rodent management requires integrating physical controls like hunting, burrow management, and flame throwing with rodenticides like zinc phosphide and coumatetralyl, as well as cultural practices like sanitation, synchronous planting, land preparation, and water level management. Timing of controls is important to target rodent population peaks. Farmers also improvise controls using predators like cobras and raptors.

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    Rice Farming Pest and Diseases

    Original Title

    Rodents-Importance-and-Management-presentation

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    Rodents play an important economic role, as a single rice field rat can damage 30 rice tillers per night. They have continually growing incisor teeth and no canine teeth. Their populations can increase rapidly due to early maturity, short reproductive cycles, large litter sizes, and post-partum estrus. Effective rodent management requires integrating physical controls like hunting, burrow management, and flame throwing with rodenticides like zinc phosphide and coumatetralyl, as well as cultural practices like sanitation, synchronous planting, land preparation, and water level management. Timing of controls is important to target rodent population peaks. Farmers also improvise controls using predators like cobras and raptors.

    Copyright:

    © All Rights Reserved
    Download as DOCX, PDF, TXT or read online from Scribd
    Download as docx, pdf, or txt
    45 views30 pages

    Rodents Importance and Management Presentation

    Uploaded by

    Romally Antonette Tagnipez
    Rodents play an important economic role, as a single rice field rat can damage 30 rice tillers per night. They have continually growing incisor teeth and no canine teeth. Their populations can increase rapidly due to early maturity, short reproductive cycles, large litter sizes, and post-partum estrus. Effective rodent management requires integrating physical controls like hunting, burrow management, and flame throwing with rodenticides like zinc phosphide and coumatetralyl, as well as cultural practices like sanitation, synchronous planting, land preparation, and water level management. Timing of controls is important to target rodent population peaks. Farmers also improvise controls using predators like cobras and raptors.

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    © All Rights Reserved
    Download as DOCX, PDF, TXT or read online from Scribd
    Download as docx, pdf, or txt
    of 30

    Rodents: Importance and Management

    Leonardo V. Marquez
    Senior Science Research Specialist
    Rodents
     Belongs to Order Rodentia
     From the Latin verb
    rodere or to gnaw
     Defined as animals that
    have continually growing
    incisor teeth and no
    canine teeth
    Rodents

    Large (50kg)
    Capybaras
    Rodents

    Small (10g) Pygmy mice


    Rodents

    Hairless
    mole rat
    Rodents
    Rat Economic Importance
    • An adult rice
    field rat can
    cut 30 rice
    tillers per night
    • Rat cut/damage
    electric lines,
    papers, clothes
    and almost
    every thing
    Characteristics of Rodents
     Crepuscular
     Active during dusk and
    dawn
     Keen sense of smell,
    taste, touch and
    hearing
     Neophobia
     Almost blind
     Use their whisker
    Rodent Population
    migration

    birth Population of
    death
    field rats

    emigration
    Population-Female reproduction
    1. Early maturity
    2. Short menstrual cycle
    3. Short gestation period
    4. Short lactation period
    5. Deliver an average of 6
    pups/litter
    6. Post partum estrus
    7. Colony mating
    8. Control reproduction
    Population-Female reproduction
    Post partum estrus
    Population Male reproduction

    1. Early maturity
    2. Colony mating
    Population Male reproduction
    1. 2.5% of the body weight
    2. 167.05 µm
    3. 53,071,429/ml
    Population reproduction rice pattern
    PhilRice-CES cropping calendar

    January February March April May June July August September October November December

    Dry season Wet season


    Rodent Management Timing
    PhilRice-CES cropping calendar

    January February March April May June July August September October November December

    Dry season Wet season


    Rat management using Physical
    control
    1. night rat hunting
    Rat management using Physical
    control
    2. Community wide rat hunting
    Rat management
    Rat burrow management
     During land preparation, exposed rat burrows by cleaning
    levees and dikes
     Pour mud and water inside rat burrow
    Rat management
    Rat burrow
    management
     Catch escaping rats
     Allowed the mud to
    solidified inside burrow
    Rat management using Physical control
    3. Rat hunting using flame thrower
    Rat management using rodenticide
    Two types of rodenticide

    • Acute rodenticide = Pre-baiting: before seeding or before


    transplanting -use acute (single-dose) poison
    -Zinc phosphide

    • Chronic rodenticide = 2 WAT: 5 baiting stations/ha (6


    tbsp./station) use chronic (multiple-dose)
    -Coumatetralyl (Racumin)
    Rat management using
    rodenticide
    1. Zinc phosphide
    2. Mix with gastric juices
    3. 4 days affectivity
    Rat management using cultural
    practices
    Sanitation and
    synchronous
    planting
    Rat management using cultural
    practices

    Dry land
    preparation
    Rat management using cultural
    practices
    Increase
    water level
    Farmers Practice
    improvise
    cobra
    Farmers Practice
    improvise
    raptor
    Remember….
    Proper timing
    Remember….
    Thank you very much

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