If you are faced with small flies in the yard, they may be fruit flies. Fruit flies (vinegar flies) appear in the yard with the arrival of the heat and seek to your berry trees. The simple fruit flies traps will not help to get rid of them, you need to make special insecticides treatment of trees. We recommend using insecticides based on pyrethrin. One of the most effective chemicals is Bonide 857 Pyrethrin Spray Concentrate – read more about it in our guide to getting rid of fruit flies.