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Friday, July 30, 2021

Ground Squirrel Damage vs. Poisoning the Food Chain

Q. I am wildlife biologist and a gardener. You should retract your statement about poisoning ground squirrels as the poisoned bodies will appear in the food chain of hawks, owls, coyotes, foxes, and snakes.

Ground squirrel harvesting of nuts from almonds

A. You are right. Poisoned carcasses of any animal can enter the food chain of other animals. It is important to make sure that individuals are following all federal, state, or local laws or ordinances pertaining to the use of a pesticide (whether it is used to kill weeds, insects, protect plants from diseases or terminate the life of a critter) and that any pesticide is used as a last resort. Make sure to read the pesticide label and follow its directions.

Ground squirrel looking for handouts at Hoover Dam

            Ground squirrels can rob a tree of almonds overnight. One method to avoid this from happening is to harvest the nuts earlier in the calendar year and dry them in a protected location.

Harvested table grapes by a ground squirrel. I challenged him/her/it and saw it jump from the grape vine about 2 pm in the afternoon

There are different ways to eliminate ground squirrels. Pest control companies exist that focus on “humane methods” and market these options for concerned gardeners. I would refer anyone interested to follow the advice given by the University of California regarding controlling ground squirrels (http://ipm.ucanr.edu/PMG/PESTNOTES/pn7438.html). Please remember that trapping and releasing an animal to another area is illegal in most states and potentially cruel.

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