for aphids, buy a bag of ladybugs at Home Depot, and for larger bugs, have a sprinkler near the plant. (grasshoppers are affraid of water)
Cedar is a great wood to burn if you want to repel bugs. I wouldn't stop with wood though, there are a number of plants you can burn as well. Some plants to try are citronella, lemongrass, rosemary, and thyme.
Tell him their bugs
Fences , or move the plants.
you have to make it die and if you get poisoned by a bug then you kill it
they are having a little sleep
pepper
get a kill insect spray and make it so it sensers in then it will kill the insect
Thorns and a foul taste.
plant horse repelling plants around the bush
To prevent your cat from eating plants, try placing citrus peels or aluminum foil around the plants, using bitter sprays, providing alternative chew toys, or placing the plants out of reach. Consistency and positive reinforcement can help train your cat to avoid eating plants.
it will stop you from eating poisonous plants
Some desert plants have spines or thorns, some have a bad taste and some are toxic if eaten.