Quick Answer
For effective ground squirrel population management in California, the best times of year are during the winter months (December to February) when the animals are in their burrows and less active, and during the summer months (June to August) when the young are most vulnerable to control measures. Early morning or late evening are ideal times for control efforts to minimize disturbance and heat stress.
Winter Control Strategies
In California, winter is an ideal time for ground squirrel control due to the animals’ reduced activity. The most effective control methods during this period include using rodenticides such as brodifacoum or bromadiolone in bait stations, which can be placed near burrow entrances. These baits should be used in accordance with local regulations and safety precautions to avoid non-target species exposure.
Summer Control Strategies
Summer is another critical time for ground squirrel control, particularly during the breeding season when the females are most active. The use of repellents or exclusion methods can be effective during this time, as can targeted removal of the young and breeding adults using humane or lethal control methods. Aerial control methods using helicopter-mounted netters or firearms can also be effective during this period.
Considerations for Effective Control
For ground squirrel population management to be effective, it is essential to consider factors such as the size of the population, the availability of food and water, and the presence of other predators or competitors. It is also crucial to choose control methods that are compatible with the local ecosystem and that minimize non-target species exposure. In areas with sensitive habitats or endangered species, non-lethal control methods or exclusion techniques may be necessary to avoid unintended consequences.
Find more answers
Browse the full Q&A library by topic, or jump back to the topic this question belongs to.