And none of this scorched earth expense is recoverable?
Cat repellent often does the trick, mate.
These are said to be the top 10 cat repellents (YOU must do your due diligence as I am NOT recommending any of them, just illustrating such things exist):
10. Hoont Motion Activated
The Hoont Motion Activated (appx. $40) utilizes a pair of speakers to put out one of three ultrasonic frequencies, the intensity of which you control. You can also set the unit's sensitivity, so less intrusive animals, like butterflies and birds, don't drain your batteries.
9. Natural Armor Spray
The concentrated formula of the Natural Armor Spray (appx. $21) will dilute into roughly one gallon of liquid that can cover approximately 4,000 square feet. It's available in three pleasing scents, and doesn't wash away easily in rainstorms.
Completely biodegradable
Lasts 90 days after application
Some scents are less effective
8. PetSafe Ssscat
PetSafe Ssscat (appx. $35) is, essentially, a small, motion-activated squirt bottle — and we all know how much felines hate to be sprayed. It contains an unscented liquid that is completely harmless, which it can project up to three feet.
Each can provides about 90 sprays
Shouldn't be used around birds
Refills are expensive
7. Homarden Garden Cat Scat Mat
If you are serious about keeping felines away from your flowerbeds, then you may be interested in the Homarden Garden Cat Scat Mat (around $17). Rather than relying on a noise or a spray, this creates a physical barrier that those furballs will be loath to try and cross.
Can also be wrapped around trees
Easy to cut to size
Unsightly appearance
6. Tattle Tale Sonic Pet Training Alarm
The Tattle Tale Sonic Pet Training Alarm (about $44) comes as a two-pack that you can use to keep all kinds of animals off of furniture or away from certain areas of the home, like the garbage can or a bed. It utilizes structural vibration technology to deter them.
Also emits a short three-second beep
Made in the usa
Only meant for indoor use
5. PredatorGuard PestAway
The PredatorGuard PestAway (about $45) has an impressive 40-foot detection range, which makes it a good choice for those with large yards. It utilizes a combination of three deterrent methods, an ultrasonic sound, a flashing strobe light, and an optional audible tone.
Effective against birds too
Lasts through years of use
Easy to set up anywhere
4. Sofa Scram
If it's an indoor pet you are worried about, rather than an outdoor one, the Sofa Scram (appx. $30) is worth considering. Simply lay it on your couch, in front of a doorway, or by any other area where you don't want cats or dogs to go.
Touch-activated
Emits a short loud beep
Runs on a single 9-volt battery
3. Nature's Mace
If you are one of the few people who can hear the sound emitted from ultrasonic devices and find it annoying, you will probably be interested in Nature's Mace (appx. $20). It comes as a concentrate or ready to use and works by creating a sensory barrier felines find unpleasant.
Safe for use around plants and kids
Suitable for indoor and outdoor use
100-percent money-back guarantee
2. RoyalSell Stake (I use three of these, and they have an impact on feral felines).
Whether you are trying to keep rodents, felines, canines, or raccoons out of your yard, the RoyalSell Stake (around $23) can help. It is solar powered, so you don't have to worry about running any electrical wires, and can withstand all weather conditions.
Can also be hung on a wall
Uses sound and light as a deterrent
Color blends into gardens well
1. Amtek Scraminal
The Amtek Scraminal (about $57) is designed for indoor use to keep cats out of particular areas of the home. It uses a combination of heat and motion sensors to identify when an animal enters the vicinity, at which point it lets out a series of short, high-pitched tones.
Fifteen-foot detection range
Works very well for spot coverage
More effective than ultrasonic units
Top 10 Cat Repellents of 2019 | Video Review
DIY cat repellent: