Presented by

Monty SullinsVertebrate Pest Specialist

Montana Department of Agriculture

Soil tillage/cultivation

Crop Rotation

Irrigation

Burning / Debris Removal

Grazing Management

1. Ground squirrels, prairie dogs, marmots2. Can be effective on small areas/localized

problems3. Expensive, time consuming ineffective

on large areas

Types: Pocket gopher pincher and box traps Conibear Live traps Ground squirrel traps

Can be effective on small areas

…… but labor intensive

Plague, Tularemia, etc. occur naturally but

cannot be used as a managed control

Prevents access of rodents into buildings

Expensive and labor intensive

Ignitable gas cartridge:a. General useb. Lighter than air – may not filter

throughout burrowc. May be a fire hazard in dry conditions

Aluminum phosphidea. Restricted useb. NEW RULES AND REGULATIONSc. Requires good soil moistured. Used primarily for ground squirrels and prairie dogs

Zinc Phosphide grain baits Registered (restricted Use) for controlling all

field rodent pests in Montana Formulated on grain Must be prebaited in all applications except for

voles Single dose – no antedote May be spot baited, broadcasted, or used in

burrow machines Special requirements for broadcast application –

contact Montana Dept. of Agriculture Cannot be used in bait stations

Rozol Anti-coagulant – Chlorophacinone Registered for controlling ground squirrels,

pocket gophers, and voles – NOT prairie dogs Antedote – Vitamin K Can be used in bait stations – also Ra,ik Green MUST follow application instructions

completely – 2 applications 2-3 days apart Spot application only – cannot broadcast

Strychnine Illegal to use except for pocket gopher control

ONLY – applied underground by hand or in burrow machine

Formulated on oats or milo

1. Rodents are a food base for hawks, owls, eagles, coyotes, foxes, badgers, etc

2. Help reduce rodent numbers but may not be enough to adequately reduce damage

1. Oxygen/propane explodersa. Expensive, labor intensive, poor results

2. Guma. No evidence that it works