Insect repellent teas can be made from any strong aromatic weed steeped in water for 48 hours.
A good result in the control of beetles, thrips, worms and aphids can be achieved with this recipe:
2 cloves of garlic shredded and placed in enough water to cover. After 24 hours add a teaspoon of cayenne pepper, mix it and wait another 24 hours.
Add 500 ml water for a concentrate. You need only 10 ml of the concentrate for 1 liter repellant. Per liter repellant add 1 drop of bio-diswash liquid. Apply every 3 to 4 days until the populations of the different insects are manageble.
(The original recipe is from New Plant Nursery in George, South Africa)