Ladybugs are predatory insects
They sure do! In fact, ladybugs are one of the most effective predatory insects around-and love to make a meal out of bad ones. But give them time to do their thing. If you get too impatient with them, they just might “fly away home.” Make sure your garden friends are happy by providing them with water and shelter. Remember that good bugs are living creatures and they have feelings too.
It is best to release them in the evening or early morning, just after you have watered the garden. This will help keep them in the garden. It is also better to release them in small batches all around your garden than in one big group; otherwise, they might get all huffy and start duking it out for the territory.
Ladybugs are more likely to remain in your garden if there is a ready food supply. It is important to provide them with an alternative food source when meals of pest insects are scarce. Flowers produce nectar and pollen, which ladybugs also need to survive. Plan your garden to feed beneficial insects by choosing a variety of plants that will bloom as many months of the year as possible.
Don’t be surprised if they leave after they have removed all your bad insects, though. They will only stick around for as long as there is a good food source in your garden.