着重处理宠物经常在庭院里停留的阴凉处。 清除庭院里散乱的垃圾，包括散落的树枝和枯叶、碎草屑，还有到处乱放的工具或设备。 在庭院喷杀虫剂，杀死藏在里面的跳蚤。 如果你需要帮助，可以联络专业的除虫公司。 在庭院撒雪松碎屑，防止跳蚤到回来。

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Fleas thrive in dark, moist environments, and you’ll most likely find them in places where your dog likes to run around, hang out, or rest. It’s not necessary to treat your whole yard for fleas, especially parts of your yard that get a lot of sun. Fleas don’t do well in dry, sunny areas. If you want to test your yard for fleas, try walking through it with white socks on. If you see any fleas on your socks, it's likely that parts of your yard are infested. This includes fallen branches or leaves, piles of grass clippings, or any tools or equipment lying around. By clearing out debris, you’ll give the fleas fewer places to thrive. Look for an insecticide that is designed for outdoor conditions and contains both an adulticide and an insect growth regulator, which will prevent flea eggs from hatching and larvae from growing for several months. Most outdoor formulations can be attached to your hose and then sprayed over infested areas. You should only need to apply the insecticide to shaded areas that your pet runs through or lies down in, or to dark areas that have a lot of moisture. Follow the application instructions carefully and repeat the application as necessary.  You’ll need to stay off of your yard for a set period of time after the application. You may need to apply the insecticide when it's dry outside since water can dilute its effectiveness. If you're not sure, read the instructions that came with your insecticide. If you aren’t comfortable applying pesticides to your yard, consider reaching out to a professional. Contact your local Better Business Bureau for recommendations. Before anyone comes out to treat your home, make sure you know what type of treatment you’ll get and how much it will cost. Fleas dislike the smell of cedar chips, so incorporating them into your landscaping can work as an extra line of defense. Try spreading some cedar chips around the shrubs and trees in your yard, or use them along any pathways. You can find cedar chips online or at your local garden center or department store.