Show S spray p ray from under trees to control aphid pests it Is extremely difficult to control aphids on apple trees by spraying unless a systematic method Is followed in spraying each tree in experiments conducted in apple orchards in western new york by the entomologists of the new york experiment station at geneva N Y it was found that when abert spraying was done from the top of tile the spray pray tank the results were quite uncertain due to tile the tact fact that the insects congregated on the lower branches of the trees where the spray mixture failed to reach them at tho the same time in orchards where the station spray system was folio followed ired in which the spraying was done from the ground and under tinder the trees practically complete control of the pests was be accomplished complis hed in the station method the spray outfit Is equipped with a sufficient length of hose to enable the nozzle man to work from the groundland ground ground and under tile the tree ile he then takes up certain dess j bated positions in spraying each tree which insure the spray mixture reaching the underside of every branch and twig by moving from place to place and by maintaining a pressure of at least pounds at the spray tank it Is claimed that each tree can be completely covered in a relatively short time the station tests testa and spray system a are re fully described in bulletin w which aich may be obtained from the station free of charge new york experiment peri ment station IL |