California Ground Squirrel Control
Name: Spermophilus beecheyi
California Ground Squirrel
Photo Credits: Used with permission from Univ. of CA.
Statewide IPM Project
- Primarily vegetarian
- Have low free-standing water requirements--they can easily live on metabolic water and moisture from vegetation. They can survive on very dry rangeland sites with no available water and no rain for 4-6 months. When they drink water, their consumption is estimated at 30-50 ml/day.
- Hoards and caches food
- True hibernator
- Average 7 young per year--born in mid-April. Young emerge
from den in mid-May.
- Easily recognizable due to their foraging activity.
- ground squirrel burrow
Description: shows 2 to 3 inch wide burrow in close mown
Photo Credits: Dallas Virchow
- Will eat bird eggs
- Can significantly depletes the forage for livestock
- Consumes all grains, and a wide variety of other crops, such
as almonds, pistachios, walnuts, apples, apricots, peaches,
prunes, oranges, tomatoes, alfalfa, sugar beets, beans, and
- Trees damaged through gnawing
- Squirrels can be excluded from buildings with the same techniques used to exclude commensal
rats (see Rodent-proof Construction and Exclusion Methods). Use sheet metal cylinders around tree trunks to prevent loss of fruit or nut crops.
- Otherwise fencing is not often practical.
- Disc tilling
- Very effective
medium to small populations
- Modified box, pocket gopher traps have been very effective.
- Baits include Doritos®,
- Rarely practical or safe.
- A number of formulations are available
Ground Squirrels in the News