Small green plant lice or aphides are frequently met with on roses during the spring and summer months, gathering most abundantly on the buds and younger leaves. They are nearly always wingless and increase very rapidly, from four to ten young being produced almost every day by the adults. These pests feed by sucking the juices from the plant, and when abundant on the buds frequently blight them. They can be held in check by spraying the plants with kerosene emulsion or soap, but it should be borne in mind that as only those touched by the spray are killed, the spraying must be very thorough to be successful, and if only a few escape, there will be multitudes present again, in the course of three or four weeks.