Elementary principles of agriculture Elementary principles of agriculture : a text book for the common schools elementaryprinci02ferg Year: 1913 Small Fruits and Orchard Fruits 365 3d. Calyx Spray, given just after the petals have shed and while the calyx end of the young fruits is still open and erect. Use Bordeaux mixture with 1 to 2 pounds of powdered arsenate of lead added for the special control of the codling moth, curcuho and the less important insects. For the codling moth, it is especially desir- able that the spray be made while the young fruits are open and erect. The codling moth
Elementary principles of agriculture Elementary principles of agriculture : a text book for the common schools elementaryprinci02ferg Year: 1913 Small Fruits and Orchard Fruits 365 3d. Calyx Spray, given just after the petals have shed and while the calyx end of the young fruits is still open and erect. Use Bordeaux mixture with 1 to 2 pounds of powdered arsenate of lead added for the special control of the codling moth, curcuho and the less important insects. For the codling moth, it is especially desir- able that the spray be made while the young fruits are open and erect. The codling moth usually lays the egg at the calyx end of the young fruits and if the spray is present, the young larvae get the poison with their first mouthful. 4th. Later Sprayings are given at intervals of two or three weeks depending upon conditions, using Bordeaux mixture to Fig. 229. A peach tree four years old that has been headed-in every year. An open tree like this that has been regularly headed-in has many small fruiting branches on the interior limbs. Photo. Prof. W. H. Chandler, University of Missouri.
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