Bee sure to plant flowers for beneficial insects this spring that are pesticide-free. Provide shelter. All living things need a stable habitat in order to stay healthy. If care is taken to provide shelter where insects can find protection from disturbances, they will be more likely to stick around. Plots of cover crops, perennial flower beds, and hedgerows near flower or vegetable gardens all provide excellent shelter for your beneficial insects. Provide water. Insects, just like anything else need water to survive. Any small, shallow container will work, but care should be taken to keep the water clean. Changing the water every two to three days will do this and will also discourage mosquitos from breeding. Small sticks or rocks should also be placed in the water to give the insects somewhere to perch. Provide alternative food sources. When pest populations are low, beneficial insects will feed on pollen, nectar or plant juices to supplement or replace their insect diet. Incorporate other pest management strategies. In order to sustain their food source, beneficial insects must allow some of their prey to feed and reproduce. As a result, they will not always be able to solve all of your pest problems. Choosing plants that are resistant to pests works well.