Evening Republican, Volume 16, Number 41, Rensselaer, Jasper County, 16 February 1912 — Winter Spraying [ARTICLE+ILLUSTRATION]

Winter Spraying

By M. W. Richards, Assistant Horticulturist,

Purdue Experiment Station, Purdue University Agricultural Extension

FeW farmers realize the importance of winter spraying their fruit trees. Indiana is literally overrun with the San Jose scale. This pest is a sucking insect, hence cannot be killed by the stomach poisons such as arsenate of lead and Paris green which are used on the chewing insects. It is also an armored insect as it is protected by a waxy scale-like covering. These facts make it necessary to spray for this pest In the winter time. A contact spray Is used. This material must be so caustic as to penetrate the waxy covering and kill the insect underneath. If this caustic wash were used in the summer it would not only kill the scale but the leaves as well. Now, then, is the proper time to spray for the San Jose scale. The most reliable caustic wash for scale control is concentrated lime-sulphur. This material is purchased already for dilution. One gallon of concentrated material is di-

San Joee Seale on Fruit. Red Spots on the Fruit Generally Mean the Seale. Watch for Them! , luted with eight andone-half gallons of water. This material to sprayed on all trees Infested with any of the bcale insects sometime during the dormant season. Great care should be taken in applying this mixture. II

is a cure so should be applied to each and every scale insect. Put it on with a good pump and nozzle and under high pressure. Coat every inch at the tree and then there will be no trouble with the reoccurrence of the scale. Do not quit. Just because you have the scale is no reason why you should let your trees die. Buy some concentrated lime-sulphur, dilute it at

San Jose Scale on Bark. The Mature Seale to Very Hard to See. It la Only About as Large as a Common Pin Head. Large Masses of Them £ Give the Trees a Very Bourfy Appearance—as If Wood Ashes Had Been Ousted Over the Tree. a. ; - y. ~ ~ the rate of one gallon of wash to gallons of water and put it on your trees now and get rid of this pest Spray before growth starts this spring and save your trees.