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Show Lime-Sulphur Solution Kills San Jose Scale One of the worst orchard pests in some fruit-growing sections is the San Jose scale. To get rid of it, orchardlsts spray the trees with lime-sulphur solution In the spring just as the buds begin to unfold. One gallon of commercial lime-sulphur lime-sulphur is used with eight gallons of water. In some fruit sections in other states, oil emulsions are used, but it Is considered much safer to use the lime-sulphur, as it is so efficient in controlling diseases of fruit, in addition addi-tion to destroying the scale. Oyster shell and scurfy scale are much more common In the orchards of Iowa. Individual specimens of the former are much larger than San Joso or scurfy scale. Because of their resemblance re-semblance to the oyster they take that name. The San Jose scale is very small and one can only tell it with the aid of a microscope unless the infestation infes-tation is quite severe. Lime-sulphur solution applied as mentioned above will, in two or three seasons, clean up bad infestations. This wash Is not quite so rapid on results re-sults for oyster shell scale because the pest is continued over winter in the egg that you can easily find under the old scale. Take the point of n knife or a pin, raise up the scale and you may see the eggs with the naked eye, though it is better to have a microscope. micro-scope. Trees In which the branches are badly encrusted can be cleaned up In due time. |