Birch tar is also effective in repelling pests such as slugs, whiteflies, aphids, Colorado potato beetles, mole crickets, onion flies and weevils. The solution does not destroy insects, but successfully repels them.
For a protective solution, dissolve 1 tablespoon of tar and 30-40 grams of grated soap in 2 liters of hot water. After thorough mixing, let the solution sit for 2-3 hours and use it to spray plants once every 12-14 days, preferably in the evening, in dry and windless weather.
Proper preparation and timely use of a solution based on birch tar will help reliably protect your garden from many troubles.
