Monday, June 15, 2009

Good Plants for Good Bugs

In order to support your collection of beneficial insects in your garden you have to provide them with habitat and, for the adults that need nectar and pollen, a food source. Since many of the wasps and flies are small you want plants whose flowers are small but abundant.

The Apiaceae, a large family that includes carrots, dill, fennel, Queen Anne's lace, parsnips and many others, has large flower heads composed of many very small flowers. Most of the predatory wasps and flies will be attracted to these plants as they are rich sources of nectar with nice places to land. It is a large family of plants with over 3000 species. 

The Asteracea (formerly the Compositae) is the largest family of flowering plants. It includes sunflowers, thistles, lettuce, chamomile, tarragon and many others. These plants provide pollen and nectar for beneficial insects. The yellow flower in the picture below is very common here in the Rio Grande Valley; it is frequented by many small insects.

 

The Allium family, including edible garlic and onions, provides a lot of goodness for the good insects. The large purplish flower in the picture is elephant garlic. It is usually covered with butterflies, little wasps and flies but there was too much wind today. Honey bees also like these flowers if here is nothing else blooming. The while allium is an onion. 


The mint family, Lamiaceae or Labiatae, includes many of our culinary herbs and beneficial insects love these plants; the flowers are small and very rich in nectar. You will encourage syrphid flies, tachinid flies and big-eyed bugs. Our sage is still blooming, its purple flowers attract many bees when it is not windy. 


This is a start on insectary plants. I will cover more good plants for good bugs in another post. The pictures in this post were taken in our garden.

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