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 over 5 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. Stefan Neher asked question Stale Data in category Site Navigation
  2. Penny Edwards asked question diseases in category Phalaenopsis
  3. Penny Edwards asked question diseases in category Phalaenopsis
  4. peter teller asked question please help with an id..... in category General Discussion
  5. Roberto Lizama started topic Help to ID this Epidendrum from Guatemala in category Species

New Comments

  1. Robert H. Findlay commented on topic "seed vs. pollen parent " by Robert H. Findlay
  2. Carol Holdren commented on topic "Photo of MaryAnn Coyle or Laura Ann Coyle" by Dana Coyle
  3. Mary Lane commented on member plant Dendrobium QT Makani by Mary Lane
  4. Brandy France commented on member plant Chz. Hsinying Pink Doll 'Hsinyijng' by Adam Almeida
  5. Roberto Lizama commented on topic "Help to ID" by Roberto Lizama
  6. Carol Holdren commented on topic "Brsdm GILDED URCHIN ONTARIO ORCHID" by Diana King
  7. Carol Holdren commented on topic "Compact DEN SUPERBUM ORCHID MINEATURE " by Diana King
  8. Pam Lipscomb commented on member plant Blc. Oconee 'Mendenhall' by Jeanne M Uzar
  9. Carol Holdren commented on topic "Don't we meet in person in Kalamazoo, MI anymore?" by Conni Wireman
  10. Catherine Chance commented on topic "Searching for Erycina echinata " by Catherine Chance
  11. Carol Holdren commented on member plant Gom. Jiaho Queen 'Jiaho' by Robert Rand
  12. Pam Lipscomb commented on member plant Bsn. Maikai var. Louise by Sandi Block-Brezner
  13. Robert H. Findlay commented on member plant E. Rioclarense by Robert H. Findlay
  14. Susan LE commented on member plant QF Makani by Tanya Lam
  15. Pam Lipscomb commented on member plant Eny. Exotic Seashell by Steven Kirincich
  16. Pam Lipscomb commented on member plant Lc. Little Oliver by Steven Kirincich
  17. Susan LE commented on topic "Paph Harry Stage" by Key Stage
  18. Susan LE commented on scheduled event "Tamiami International Orchid Festival" by Miami Orchid Society
  19. Susan LE commented on article "Orchid Wiz - what will we do without you?" by Carol Holdren
  20. Susan LE commented on member plant Coel. rochussenii 'Waki' by Melvin Waki