Summary of the inventionThe present invention is directed to a method of thinning of fruit trees, preferably apple trees, wherein the mixture of lecithin or polysorbates or combinations thereof with water act as fruitlet thinning agent when applied to fruit tree crown after the blooming period.The present Invention is directed to an environmental friendly composition and method of late fruitlet thinning where the water mixture of lecithin and/or polysorbates is applied to the fruit tree at the time of fruitlets diameter from 6 to 30 mm, preferably from 8 to 22 mm fruitlets diameter. The preferred amount of each active ingredient (lecithin, polysorbate 20, polysorbate 60 or polysorbate 80) to form the solution with water is 0.5% by weight or volume of the total solution.
