San Jose scale and its control . )on certain weather condi-tions, and therefore vary consi{lera])lY. CONTROL MEASURES. As has been already stated, the San Jose scale, in the absence ofproper treatment, will quickly ))ring about the death of most plantsof economic importance. Its discovery, therefore, whether inorchards or on prized fniit trees and other plants in the yard, shouldcall for ])rompt steps to effect its control. It has heen amply demon-strated that tlie scale may be very successfully controlled, and. Fio. 7.—A!<j)idi<iHj)fia(/us citriniis. n liyinonopterous parasite of tho Sa
San Jose scale and its control . )on certain weather condi-tions, and therefore vary consi{lera])lY. CONTROL MEASURES. As has been already stated, the San Jose scale, in the absence ofproper treatment, will quickly ))ring about the death of most plantsof economic importance. Its discovery, therefore, whether inorchards or on prized fniit trees and other plants in the yard, shouldcall for ])rompt steps to effect its control. It has heen amply demon-strated that tlie scale may be very successfully controlled, and. Fio. 7.—A!<j)idi<iHj)fia(/us citriniis. n liyinonopterous parasite of tho San Josp scale, dreatly enlarged. {From Ilowanl.) practically its pi-esence merely re(piires one thorough treatmentduring the dormant ])eriod each year. On account of the general(nstribution of the ))est, extenuination is in most cases out of thequestion. Where ])lants are thoiougldy inciusted, with consequent death ofbranches and stunting of growth, it will generally be advisable todig out the trcs at once and re])lace with new ones. Previous tospraying infested tiees. tlie dead and weakened wood should ])epruned out, which will simplify the work of s])raying and will hastenthe formation of new sound wood. There are several scale washes which may be employed in thecontrol of the insect, and the one should be selected which can bemost conveniently used and which is economical under the circum-stances. Thus, for si)raying on a large scale the orchardist couldproperly afford ex])en(litures for the construc
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Keywords: ., bookauthorunitedst, bookcentury1900, bookdecade1910, bookyear1910
