I used this homemade recipe as an insecticide: 2 tablespoons of canola oil 1 tablespoon of Murphyâ€™s Original Concentrated Oil Soap (diluted with a heavy cleaning ratio of 120ml: 4L of water) 1 tablespoon of baking soda and 2 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 wasnâ€™t 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(should I dilute Murphy's oil soap ?). Any help would be appreciated! Thanks!