Report of the Commissioners . Eiff. Fig. 76. Fig. 74 shows the larva and egg and Fig. 75 the moths, male and female, of vervata, the spring form ;while Figs. 76 and 77 represent similar stages of the autumn insect. has been very troublesome in many parts of the United States, attacking not only theapple tree but several varieties of shade trees, particularly the elm. REMEDIES. Various means have been resorted to to prevent the female from climbing up thetrees and depositing her eggs. Strips of tin or zinc have been fastened about the tree,about three inches wide and sloping downwards, lik
Report of the Commissioners . Eiff. Fig. 76. Fig. 74 shows the larva and egg and Fig. 75 the moths, male and female, of vervata, the spring form ;while Figs. 76 and 77 represent similar stages of the autumn insect. has been very troublesome in many parts of the United States, attacking not only theapple tree but several varieties of shade trees, particularly the elm. REMEDIES. Various means have been resorted to to prevent the female from climbing up thetrees and depositing her eggs. Strips of tin or zinc have been fastened about the tree,about three inches wide and sloping downwards, like an inverted funnel, so that the insectcould not surmount them, also bandages of cotton and other fabrics, daubed with tar,have been used with the same end in view, and by these means the trees have, in manyinstances, been saved from serious damage. I have not had much opportunity of judgingwhether the English sparrow has had any efiect in reducing the number of these insects,but I am of opinion that it has not. THE CECROPIA EMPEROR CA
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectagriculture, bookyear
