To keep neighbors' cats from entering your yard or home, while avoiding obvious traces of human intervention, you can try the following gentle and hidden methods： --- ### **1. Use the smell of natural gas to drive away** Cats are sensitive to certain odors and can release their nasty odors in the following ways： -**Citrus**: Sprinkle fresh orange peel, lemon peel or diluted lemon juice on places where cats often haunt (need to be replenished regularly). -**Coffee grounds/paprika**: Sprinkle a small amount on the edge of the garden (avoid direct contact with plants). -**Essential oil spray**: Mix mint, lavender or eucalyptus essential oils with water and spray at the door or around the flower bed (be careful to avoid pets and children). -**Planting cat repellent plants**: such as lavender, rosemary, lemongrass, etc., are both beautiful and natural. --- ### **2. Physical barrier (concealed type)** -**Spiked coverings**: Place pine cones, pebbles or plastic anti-cat thorns on the edge of fences or flower beds (choose materials that are similar in color to the surrounding environment). -**Aluminum foil/double-sided tape**: Temporarily laid on windowsills, walls and other places where cats settle. Cats hate the touch when stepping on them (remove after short-term use to avoid long-term marks). -**Cover soft soil**: Cats like to loosen the soil to defecate, so you can lay a layer of gravel or bark shavings on the surface of the flower bed. --- ### **3. Environmental transformation** -**Remove attraction source**： - Seal the trash can to avoid the smell of food. - Clean up bird food, pet food, or small animals (such as mice) that may attract cats in the yard. -**Create "uncomfortable areas”**： -Place uneven decorations (such as grid frames) where cats often lie. -Turn on the automatic sprinkler (choose a natural style device, such as a sprinkler disguised as a stone or plant). --- ### **4. Sound interference (concealed equipment)** -**Ultrasonic cat repellent**: Choose an outdoor model powered by solar energy or battery, disguised as a garden ornament (make sure the frequency is only for animals and does not interfere with humans). -**High-frequency sound**: Use your mobile phone to play the sounds of cats' natural enemies (such as eagles), but you need to manually operate when the cat appears to avoid long-term exposure. --- ### **5. Psychological deterrence** -**Fake owl/snake model**: Placed in a conspicuous place, occasionally moving the position to maintain a ”sense of reality". -**Mirrors or reflective objects**: Hanging CD discs or reflective strips, shaking when the wind blows will make the cat alert. --- ###**Precautions** -**Avoid conflict**: Do not spray or roar directly at the cat, which may cause a stress response or irritate neighbors. -**Change strategies regularly**: Cats will adapt to fixed driving methods and need to use different methods alternately. -**Communicate with neighbors**: If the relationship is harmonious, you can tactfully remind the other party to wear bells for the cat or restrict going out (avoid direct accusations). --- The above methods are all based on the premise of not harming cats and not destroying neighborhood relations, and there are no obvious human traces after implementation. If the problem persists, you can consult a professional animal control agency for advice.