Help!! Homemade insecticide doesn't work
I used this homemade recipe as an insecticide:
2 tablespoons of canola oil
1 tablespoon of MurphyÂs Original Concentrated Oil Soap (with a heavy cleaning ratio of 120ml: 4L of water)
1 tablespoon of baking soda
2 crashed garlic cloves mixed in 1 gallon of water.
I used it a few times on sawfly larvae and aphids that were found on rose bushes. However, I felt that it wasnÂt working, so I checked it after spraying it. More than 30 minutes later, the recipe still seemed to not work on the bugs, so I was wondering if anyone has successfully used this recipe or knows if I incorrectly mixed something.
Any help would be appreciated!