Mystery Plant Spray Recipe

[Granny Gardener]

I just came across an old handwritten note in an old cookbook titled - To Spray On Plants
Mix:
3 gallon water
3 eggs
1 Cup milk
1 Tbsp cooking oil
1 Tbsp detergent
Spray on plants - repeat in three weeks.
Does anyone know what this is supposed to do for plants or pests it is meant to control?

 

[Beth_B]

Just guessing here...The oil will immobilize many pests, just by weighing them down. Detergent will kill some; spraying with soapy water is to this day a fairly effective pest killer. No clue about the eggs and milk.

 

[Beverly]

A milk mixture, if sprayed when the plant is in the sun will take care of some mildews. Don't know about the eggs.