. Mieux les fruits. La culture de fruits. Avril 1922 Meilleure Page FRUITS Vingt-trois roses de pulvérisation TF point noir est apparu sur les feuilles d'•»- vos rosiers l'année dernière, et le congé ? Déposés avant le temps froid, c'est le temps de commencer à les traiter pour cette année. Cette maladie de la rose bush est comme icnown "tache noire" et est causée par un champignon. Outre les feuilles d'abandonner trop tôt, il peut provoquer l'ouverture des bourgeons pour commencer de nouveau à l'automne, avec le résultat que la floraison pour l'année suivante est beaucoup moindre. Point Noir se développe sur les feuilles en été et puis reste plus de j

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. Better fruit. Fruit-culture. April 1922 BETTER FRUIT Page Twenty-three Spraying Roses TF BLACK spot appeared on the leaves of •'- your rose bushes last year, and the leave? dropped off before the cold weather, now is the time to begin treating them for this year. This disease of the rose bush is icnown as "black spot" and is caused by a fungus. Besides causing the leaves to drop too soon, it may cause the buds to begin opening again in the fall, with the result that the bloom for the following year is much lessened. Black spot grows on the leaves in the summer and then stays over in the fallen leaves on the ground during the winter, ready to attack again in the spring. It may be controlled by burning all the fallen leaves late in the fall or early in the spring, and then spraying the bushes just as the loaf buds open. There are three sprays which may be used, as follows: Commercial lime-sulfur one part to fifty parts of water, or Bor- deaux mixture, in the proportions of 5-5- 5 0; or 15 gallons of water, 2 ounces of copper carbonate and one pint of strong ammonia water. Another method is to dust the bush with a mixture of 90 parts of finely ground sulfur and 10 parts powdered arsenate of lead. Spraying must begin as '.he leaf buds are opening and continue at intervals of ten to twelve days, depending on how much rain has fallen. Lewis Goes East Professor C. I. Lewis, formerly in charge of the horticultural department of Oregon Agricultural College and for more than two years assistant manager of the Oregon Growers' Co-Operative Association, has taken the position of managing editor of the American Fruit Grower, with head- quarters in Chicago. In his various capa- cities with the college and association and through aggressive activities in all organiza- tions related to the fruit industry of the Northwest he has left a record for con- structive work. The post to which he goes has become his largely because of this record. ^intlliiiiiitnitirliiiliniiiiii

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