Longistigma caryae   giant bark aphid Longistigma caryae - Giant Bark Aphid. Photography credit: Ilona Loser

Aphid Repelling Plants That Can Grow With Orchids

Ailments

by Anu Dharmani

Originally published in BellaOnline

Posted by Sys Admin almost 3 years ago.

Article Blog   Article Index

Before the advent of modern pesticide/insecticide regimen, farmers used natural methods to control pests in their crops. These natural methods have long being forgotten; however now scientists are working on bring back that lost knowledge. One such method of controlling harmful insects and pests is by growing such plants that repel such pests. Companion planting of these plants with other plants can serve a dual purpose of repelling pests as well as prevent the use of harmful pesticides that kill insects indiscriminately. This pest repelling ability of plants can be attributed to the fragrances or aromas released by the plant that pests do not like. Listed below are a few such plants.

Different aphids repelling plants:
• Catnip or Nepeta cataria is said to repel aphids. The leaves of Catnip resembles the mint leaves and is most used in perfumes, food flavours as well as a insect repellent
• Chives also repel aphids. These are perennial plants belonging to the onion group of plants. Chives are aggressive plants, so remove the flowers to prevent fruit formation. Once the seeds are formed they get scattered around, producing hundreds of plants!
• Coriander is another aphid repelling plant. It has a strong smell and is used as a garnish in Asian dishes.
• Aphids also to do not like the Nasturtiums. Nasturtiums are edible annual plants; both the leaves as well as flowers are eaten. 
• Spearmint is another aromatic herb that repels aphids. It is also used as a garnish or dip.
• Dill is one more herb that aphids hate. Both leaves and seeds are used as flavouring agent in many dishes.
• Clovers (also called trefoil) cover the soil quickly, if provided with adequate water. They thus not only prevent soil erosion but repel harmful aphids as well.
• Then we have the annual petunias, these are said to be among the best aphid repellent plants. But these plants are susceptible to waterlogging.
• Unlike the delicate petunias, the perennial Fennel is hardy and is also said to repel aphids.
• Marigold is another annual flowering plant that can repel aphids.
• Another plant that aphids do not like is peppermint. This is an aromatic herb used in flavouring dishes. 
• Did you know that Eucalyptus also repels aphids?
• Larkspurs or Delphinium, a perennial plant repels aphids, but it needs careful consideration when growing this plant, as it is toxic to our animals and us. 
• Other strong smelling plants like garlic can also be tried.
• Spraying Neem oil or water-mixed leaf extract can also be used as an effective aphid repellent.
• Other herbs like basil, cumin (its essential oil) has also been recommended by researcher for aphid control.

Note: This pest repelling ability of plants can be attributed to the fragrances or aromas released by the plants that are not liked by the pests. Many of the plants mentioned above have sometimes been reported to attract insects instead of repelling. In this case, I came across a very useful advice from a commercial grower that is to burn the plant once it is full of insects. Poof… and all the pests are gone (not discussing the smoke effect, though!). 


Resources
• Isman, M.B. 2000. Plant essential oils for pest and disease management. Crop Protection, Vol. 19(8 -10): pp 603-608.
• Khan et.al. 1997. Intercropping increases parasitism of pests. Scientific correspondence in: Nature, Vol. 388: pp631-632.
• Batish et. al. 2008. Eucalyptus essential oil as a natural pesticide. Forest Ecology and Management. Vol. 256 (12): pp2166-2174.

Share on Social Media:  
Log in to Add a Comment

New Topics

  1. Kevin Fernandez asked question Yellow leaves in category General Discussion
  2. Karen Kaye asked question details for care. Food, fan location etc in category General Discussion
  3. 2016 11 03 Jeanne M Uzar asked question Looking for Plant Identification in category General Discussion
  4. John Small asked question One And The Same? in category General Discussion
  5. Ashley Matherne asked question orchid search in category Cattleya Alliance

New Comments

  1. 2016 11 03 Jeanne M Uzar commented on topic "Looking for Plant Identification" by Jeanne M Uzar
  2. Image Carol Holdren commented on topic "Yellow leaves" by Kevin Fernandez
  3. Image Carol Holdren commented on topic "details for care. Food, fan location etc" by Karen Kaye
  4. Edward Zapata commented on topic "Help with ID, Please & Than You! " by Elizabeth Padilla
  5. 2016 11 03 Jeanne M Uzar commented on member plant Bulb. Crownpoint by Jeanne M Uzar
  6. Image Carol Holdren commented on topic "One And The Same?" by John Small
  7. Image Carol Holdren commented on member plant Rth. Lemon Drop by Christopher Dolan
  8. John Small commented on orchid Eny. Golden Sunburst
  9. Image Carol Holdren commented on topic "orchid search" by Ashley Matherne
  10. Edward Zapata commented on member plant C. purpurata var. Flamea x sanguinea by Carol Holdren