OCR Text |
Show POISON SPRAY FOR THE YOUNG BORERS Common Chemical May Be Used to Advantage in Destroying Insects on Trees. Common spray chemical may. be used to great advantage on the trunks of trees at definite periods for borers. When the trunk is kept well covered with a thin film of poison, the young borer, soon after hatching, will eat of this upon entering the bark, and his first meal will end him at once. As the period of hatching extends over several sev-eral months, during which time the bark on the trunks cracks from the expansion beneath It due-to growth, the application of poison must be made more frequently. Before June 1 or as early thereafter as possible, make a thorough search of all trees for borers. Apple-tree borers are usually found above ground and these are best destroyed by injecting in-jecting a few drops of carbon bisul-phate bisul-phate into their tunnels and plugging them tight with soft clay or putty. Remove the earth to the depth of four to six inches about peach trees and cut out all borers possible with the pruning knife. After thus removing all borers that can be found spray or paint the trunks of the trees with a mixture of eight to ten pounds lead arsenate paste and 50 gallons of dilute lime-sulphur solution, solu-tion, one part to four or five of water. Mound the earth about the trees to the height of six or eight inches. Repeat Re-peat the application about the middle of July and again in the middle of August. Au-gust. This application is a preventive measure and not a remedy for the borers bor-ers already in the tree. |