. Better fruit. Fruit-culture. ipiS of apples), tobacco (nicotine sulphate) 1-1200 should be added. Compared with past years, we have made a reduc- tion in the strength of lime-sulphur to be used, and further experimental evi- dence will probably permit the making of greater dilutions for this application. The spray should be applied when the average fruit spurs show the condition us given in Figure 1. In orchards where lime and sulphur has been regularly used in the control of apple scab for several years, mildew is incidentally kept in check by this fungicide. The trouble is usualy more pron
. Better fruit. Fruit-culture. ipiS of apples), tobacco (nicotine sulphate) 1-1200 should be added. Compared with past years, we have made a reduc- tion in the strength of lime-sulphur to be used, and further experimental evi- dence will probably permit the making of greater dilutions for this application. The spray should be applied when the average fruit spurs show the condition us given in Figure 1. In orchards where lime and sulphur has been regularly used in the control of apple scab for several years, mildew is incidentally kept in check by this fungicide. The trouble is usualy more pronounced in young unsprayed orchards or in sec- tions where lime-sulphur has not been extensively employed. In orchards where the disease is prevalent it can be more specially brought under control by adding iron sulphide mixture 10-100 to the lime-sulphur. The fungus which causes powdery mildew begins activi- ties as soon as the foliage appears in the spring, and demands the same atten- tion in controling it as does apple scab. 3. Pink Spray. The pink spray is em- ployed chiefly for the control of apple scab. In sections where the bud moth is present arsenate of lead used in the standard dilutions should be added to the lime-sulphur. Owing to the fact that the entire developing apple cannot be completely covered with spray, and thereby given complete protection, until the young fruits have separated in the clusters, this spray should be delayed until the condition found in Figure 2 presents itself. In large orchards, how- ever, it will not be possible to wait until all of the spurs are in this condition. The orchardist should arrange his spraying so that the greatest proportion of the crop is sprayed while in this con- dition. If mildew is severe add the iron sulphide mixture. 4. Calyx Spray. All orchardists are familiar with the value of applying arsenate of lead at this period in the development of the young apple. Apply the spray a few days following the dropping of the petal
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