The Canny Gardener

how to be a smart gardener

A quick homemade insect spray

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Each summer, my olive tree and other plants get mealy bugs and woolly aphids.  Now I abhor both of these.  Looking up the Internet suggestions on how to get rid of these in the most eco-friendly way, If found the use of soap solution along with physically touching the stems and picking them off.  How ghastly- I’d never touch these! I have been cutting off the branches each year and that has also helped with pruning.  But this year, the tree appears to give off snowy showers when I shake it and I didn’t even feel like pruning it.  I’ve tried the home made soap solution but I think the solution needs to stick to the infestation to be effective. I’ve tried vinegar solution but don’t like the smell.

IMG_7675

This year, while thinking about the ‘stickiness’ aspect of the solution, I found some unused Ecover floor cleaner.  I added 25% cleaner to 75% water along with a pinch of turmeric to act as disinfectant (total 500ml).  IMG_7678

When I sprayed this, the foam actually stuck to the branches and nodes where the insects were.  You need to shake the bottle from time to time as the turmeric tends to settle at the  bottom.  Almost immediately I noticed that infestation was gone!  IMG_7681

I will have to wait and see if it does return but the olive tree looks amazing now.  You have to be careful not to spray surrounds but as you see that my tree was next to wood, it  was okay.  Also, don’t spray edible plants with this spray.  Ecover floor cleaner, which has linseed oil as an active ingredient, claims to have the following eco-credentials:

  • Fresh perfume from plant based ingredients
  • Cleans floors effectively and quickly
  • Excellent natural floor care and protection against staining
  • No petrochemical based ingredients
  • No residue of unnecessary chemicalsFast and complete biodegradability (OECD-test 301F, full product)
  • Minimum impact on aquatic life (OECD-test 201&202, full product)
  • Against animal testing
  • Suitable for septic tanks

I am not advertising for Ecover as this was just an experiment but I thought it was better to use this than sugar soap and WD40 which also some people have used as insecticide.

The cost of Ecover is £3-50 for 1L, so my spray works out to be less than 1pence for 500ml.

Someone else tried my solution for her rose bush and says it has worked on the aphids.  So you can try it and let me know if it works for you in the comment section below- good luck!

PS- as an added advantage, I use this mixture to quickly spray and clean up wooden floors and non food use areas.

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Author: Sumita

Sumita is an architect and artist, enthusiastic about living sustainably. She is passionate in her belief that everything should have more than one use. Sumita founded an environmental design charity, Charushila, which has created kitchen garden projects around the world

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