258 THE SPRAYING 01 FRUITS. 



four days to cover untreated portions. If spraying for rot, no 

 further treatment is necessary ; if not, two or three applica- 

 tions of Bordeaux will be beneficial. No treatment is wholly 

 satisfactory. Black-rot. — (i, as soon as first leaves are fully 

 expanded, Bordeaux mixture) ; 2, after fruit has set, Bor- 

 deaux mixture ; 3, repeat 2 at intervals of two to three weeks 

 until fruit is three-quarters grown ; 4, ammoniacal copper car- 

 bonate when fruit is nearly grown; 5, 6, etc., repeat 4 at 

 intervals of seven to fourteen days as required. Downy 

 Mildew, Powdery Mildew. — The first application recommended 

 under Black-rot is of especial importance. Ripe-rot. — Apply 

 very thoroughly the later applications recommended under 

 Black-rot. Steely-bug. — i, As buds are swelling, arsenites; 2, 

 after ten to fourteen days, repeat i. Flea-beetle. — i, Arsenites 

 as the buds swell. 2, Arsenites when worms appear on the 

 leaves. 



3. Small Fruits. 



Currant — Leaf-blights. — i, "When injury first appears, be- 

 fore the fruit is harvested, ammoniacal copper carbonate, to 

 avoid staining the fruit ; 2, after fruit is harvested, Bordeaux 

 mixture freely applied; 3, repeat 2 when necessary. Worm. — 

 I, When first leaves are nearly expanded, arsenites; 2, after 

 ten to fourteen days, hellebore ; 3, repeat 2 if necessary. 



Gooseberry — Mildew.— i. Before buds break, Bordeaux 

 mixture ; 2, when first leaves have expanded, Bordeaux mix- 

 ture or potassium sulphite ; 3, 4, etc. , repeat 2 at intervals of 

 seven to ten days, if necessary, throughout the summer. 

 Avoid staining the fruit. Thorough and timely spraying 

 will keep the mildew completely in check. Worm. — See Cur- 

 rant, above. 



Raspberry, Blackberry, and Dewberry — Anthracnose. — i. 

 Before buds break, copper-sulphate solution; also cut out 

 badly infested canes; 2, when growth has commenced, Bor- 

 deaux mixture ; 3, 4, etc. , repeat 2 at intervals of one to three 

 weeks ; avoid staining fruit by use of clear fungicide. Only 

 partially successful ; better treatment is short rotation, clean- 

 ing off the old patch as soon as it becomes diseased. Orange- 

 rust. — Remove and destroy affected plants as soon as dis- 

 covered. Saw-fly.— \, When first leaves have expanded. 



