Report of the Commissioners . nder this scaleduring the winter, and <*arly in tin; following summ(;r, as soon us tli(^ weatluir gets warm—sometimes in the latter part of May, sometimes a few days later—the young archatched out. They wait for a warm day before leaving their shelt(!r, and then theyscatter themselves over the twigs of th(! tree, and when they find a suitable spot theyfix themselves upon the tender growing bark, insert their beaks and become permanentlylocated, never moving afterwards. Tliey go on sucking the; jui(;es of tlu; tree untiltowards the latter end of August or Septem
Report of the Commissioners . nder this scaleduring the winter, and <*arly in tin; following summ(;r, as soon us tli(^ weatluir gets warm—sometimes in the latter part of May, sometimes a few days later—the young archatched out. They wait for a warm day before leaving their shelt(!r, and then theyscatter themselves over the twigs of th(! tree, and when they find a suitable spot theyfix themselves upon the tender growing bark, insert their beaks and become permanentlylocated, never moving afterwards. Tliey go on sucking the; jui(;es of tlu; tree untiltowards the latter end of August or September, when they attain their full size, andgradually form this scaly shell, witliin which the eggs are deposited, and the (juently shrivels up and dies. (Fif/. 70.) [J//-, ir. Saunders.] I INSECTS AND INSECTIVOROUS BIRDS. 65 remp:dies. It can easily be seen that the insects are most vulnerable to attack at the stage whenthe young larvae are spreading over the twigs, and before they become permanently lo-. Fig. 70 represents a small piece of the bark of an apple tree twig covered with these scales. cated. They are then soft, delicate creatures, and if syringed with an alkaline solutionsuch as I have described, but weaker, or a wash made of whale oil soap, a very large pro-portion of them will be destroyed. Again, the larger branches can be partially cleanedduring the winter months by scraping, or scrubbing them with a stiff brush, and using a-little alkaline solution. I have never tried crude petroleum as a remedy, for the reason-that I have known many instances where it killed, not only the insects, but the trees aswell. I have heard many people speak highly of a weak solution of petroleum, say atablespoonful in a pail of water, but I do not think it likely to be as good a remedy as analkaline solution, besides we know this latter to be quite harmless. While in ManitoulinIsland lately, I found this insect also attacking red and white currant bushes
Size: 3176px × 787px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1880, booksubjectagriculture, bookyear
