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NEW MEXICO COLLEGE OF AGRICULTURE AND MECHANIC ARTS AND AGRICULTURAL EXPERIMENT STATION Press Bulletin No. 10 SPRAY THE FRUIT TREES So far as I know, there are no serious fungus diseases of orchard fruits in New Mexico; but the apple and pear are badly damaged by the codling moth, also known as the apple worm. While the testimony of experimenters differs much as to the benefit to be derived from spraying with parisgreen solution as a means of killing the codling moth, the great majority of those who have tried it recommend the practice. Its success is largely proportional to the sureness with which the work is done. To make parisgreen solution, use 2 pounds of lime -and one pound of paris green to 160 gallons of water, or one quart of each to a barrel of water. Take unslaked lime, and after weighing slake and strain it. Its purpose is to prevent injury to the foliage. Weigh the poison and then moisten thoroughly with a very little water, making a paste, add water gradually until a complete solution is made. If much water is added to the dry poison it will form lumps and not mix readily. Having placed the lime and poison solutions in the barrel add enough water to fill it. The solution is best applied to the trees by means of a spraying pump attached to the barrel. This is carried on a wagon, the work being better done from above if possible. The nozzle should be graduated to throw a spray as fine as mist, and every part of the- tree should be reached, but no more need be applied than will cause dripping from the tree. Practice and cure are necessary to apply the poison evenly and thoroughly, and every fruit should be reached. The time to spray is after the blossoms fall and before the fruit stems curve downward. It is best to make two or three sprayings; first, just as the last petals fall; then again at intervals of about 10 days. The codling moth is most apt to lay its eggs in the blossom end of the fruit; hence it is especially important that the blossom end be well covered with poison. This is why the spraying should be done while the tiny fruits stand erect on their stems. As soon as the egg hatches the worm begins feeding, eating its way into the fruit. To be at all effective the poison must be on the fruit when the worm is hatched. In the southern parts of the territory the codling moth has three or four broods a year, and is much more difficult to combat than in northern New Mexico and at high elevations; but spring spraying should greatly reduce the number of worms, even where there is more than one brood a year. A bulletin has been issued by the Agricultural Experiment Station on the codling moth which will be sent free postage prepaid to any address on application to the president of the Agricultural College, Mesilla Park, N. Mex. Chas. A. Keffer May 17, 1899
Object Description
Title | Spray the fruit trees |
Series Designation | Press bulletin 10 |
Description | Press bulletin containing information on using parisgreen solution to spray for codling moth in New Mexico orchards. |
Subject | Cydia pomonella (NAL); Codling moth--Control; control methods (NAL); Paris green |
Creator | Keffer, Charles A. (Charles Albert), 1861-1935; |
Date Original | 1899-05-17 |
Digital Publisher | New Mexico State University Library |
Rights | Copyright, NMSU Board of Regents. |
Collection | NMSU Cooperative Extension Service and Agricultural Experiment Station Publications |
Source | Scan produced from physical item held by the NMSU Library. |
Type | Text |
Format | image/tiff |
Language | eng |
Page Description
Title | Page 1 |
Series Designation | Press bulletin 10 |
Subject | Cydia pomonella (NAL); Codling moth--Control; control methods (NAL); Paris green |
Creator | Keffer, Charles A. (Charles Albert), 1861-1935; |
Date Original | 1899-05-17 |
Digital Publisher | New Mexico State University Library |
Rights | Copyright, NMSU Board of Regents. |
Collection | NMSU Cooperative Extension Service and Agricultural Experiment Station Publications |
Digital Identifier | UAAPp000010_001 |
Is Part Of | Spray the fruit trees |
Source | Scan produced from physical item held by the NMSU Library. |
Type | Text |
Format | image/tiff |
Language | eng |
OCR | NEW MEXICO COLLEGE OF AGRICULTURE AND MECHANIC ARTS AND AGRICULTURAL EXPERIMENT STATION Press Bulletin No. 10 SPRAY THE FRUIT TREES So far as I know, there are no serious fungus diseases of orchard fruits in New Mexico; but the apple and pear are badly damaged by the codling moth, also known as the apple worm. While the testimony of experimenters differs much as to the benefit to be derived from spraying with parisgreen solution as a means of killing the codling moth, the great majority of those who have tried it recommend the practice. Its success is largely proportional to the sureness with which the work is done. To make parisgreen solution, use 2 pounds of lime -and one pound of paris green to 160 gallons of water, or one quart of each to a barrel of water. Take unslaked lime, and after weighing slake and strain it. Its purpose is to prevent injury to the foliage. Weigh the poison and then moisten thoroughly with a very little water, making a paste, add water gradually until a complete solution is made. If much water is added to the dry poison it will form lumps and not mix readily. Having placed the lime and poison solutions in the barrel add enough water to fill it. The solution is best applied to the trees by means of a spraying pump attached to the barrel. This is carried on a wagon, the work being better done from above if possible. The nozzle should be graduated to throw a spray as fine as mist, and every part of the- tree should be reached, but no more need be applied than will cause dripping from the tree. Practice and cure are necessary to apply the poison evenly and thoroughly, and every fruit should be reached. The time to spray is after the blossoms fall and before the fruit stems curve downward. It is best to make two or three sprayings; first, just as the last petals fall; then again at intervals of about 10 days. The codling moth is most apt to lay its eggs in the blossom end of the fruit; hence it is especially important that the blossom end be well covered with poison. This is why the spraying should be done while the tiny fruits stand erect on their stems. As soon as the egg hatches the worm begins feeding, eating its way into the fruit. To be at all effective the poison must be on the fruit when the worm is hatched. In the southern parts of the territory the codling moth has three or four broods a year, and is much more difficult to combat than in northern New Mexico and at high elevations; but spring spraying should greatly reduce the number of worms, even where there is more than one brood a year. A bulletin has been issued by the Agricultural Experiment Station on the codling moth which will be sent free postage prepaid to any address on application to the president of the Agricultural College, Mesilla Park, N. Mex. Chas. A. Keffer May 17, 1899 |