. Lime-sulphur wash [microform]. Spraying and dusting in agriculture; Pulvérisation et poudrage en agriculture; Insect pests; Fruit; Insectes nuisibles, Lutte contre les; Fruits. Pear Psvlla. (I'syilii pyricola, Forsh.) TlK- IVar I'sylla (see Fijj. i ?) is another verv small insect, beiuR not more than abont one-tenth of an ind, in length. Its uings are dear arpe an, .nud, longer than the body, which, as >een bv the naked eye is' blackish to brown in colour. When one approaches near an , it will usually fly off to another leaf or part of the tree. The presence of tie I syllas on a p
. Lime-sulphur wash [microform]. Spraying and dusting in agriculture; Pulvérisation et poudrage en agriculture; Insect pests; Fruit; Insectes nuisibles, Lutte contre les; Fruits. Pear Psvlla. (I'syilii pyricola, Forsh.) TlK- IVar I'sylla (see Fijj. i ?) is another verv small insect, beiuR not more than abont one-tenth of an ind, in length. Its uings are dear arpe an, .nud, longer than the body, which, as >een bv the naked eye is' blackish to brown in colour. When one approaches near an , it will usually fly off to another leaf or part of the tree. The presence of tie I syllas on a pear tree can easily be bv to see whether there ks any clear, sticky anywhere on the leaves. This substance IS known as honey-dew and is secreted in great abundance if the injects. Kij;. Ulistt-r .Mitâ """? l^vllas arc tinv, pale-colored cun,,us-lonk,n. creature., conspicuous red eves, and with scarcdv "thi^dr'n'^vr'" ';'""^- /-"^""^ '^"^ ^^â '" ^-^'>'^ -e Jo s^;;^ ;^ ?ni o , ' ' i*^"^'y-dcw A grows in the honev-dew after a TheP vl'""'"^ ' r ''"'^ "'''"'. '^ '^ ^" ^""^ 'â¢'â ''^â '^ '-^"^ verv unsightlv on o, n y''r "â ;"'"â '" -'^'^ â¢'"'"'' ^'^-^ ^" --^"^ S-*' ImUng place on o, ,u-,r the tree. an,l come nut with the warn, sprin;.^ weather and lay. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Caesar, Lawson, 1870-1952; Ontario. Dept. of Agriculture. Toronto : Dept. of Agriculture
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectinsectp, bookyear1912
