| Show DAMAGE BY SAN JOSE SCALE pest attacks more than one hundred different kinds of trees and shrubs hard to detect by L HASEMAN HABEMAN missouri agricultural college lose jose scale will attack more than different kinds of trees and shrubs betit but it Is found on apple peach and pear trees and on currant and fire bush when tt first be gans to app appear eaon on a treo tree it Is difficult fo tor ane one io detect it for or the small gray are a pinhead pin pla head A bad case of en should be readily seen by any for the armors form a scurfy covering over the bark by run running ninga a k A X v p N using spraying apparatus in missouri orchard knife blade or boger nail over an infected limb a yellow liquid from the crushed bodies of the insects appears many fruit growers first find the scale on in the fruit by the red blotching blot ching which develops about the point of 0 attack the blotch is ie deep red in color with a light spot la in the center and may vary in size from a mere spot to a distinct blotch the pest seemingly injects poison while extracting sap which causes cause althe the red blotch all trees and fruit should be frequently examined and in all eases cases I 1 where there is any question about the presence of the scale in an orchard samples of bark twig and fruit should be sent to the missouri agricultural experiment statton station at columbia for examination it isa Is a waste of time and material to spray for the scale where it Is not present and it Is expensive to let an orchard ko go unsprayed ayed where the pest Is present so make sure about the me presence of the pest first |
