Insects and insecticidesA practical manual concerning noxious insects and the methods of preventing their injuries . ld bepulled up and destroyed, to be sure to get the larva. The Snowy Tree Cricket. Oecanthus damage is frequently done in raspberryplantations by a small, white tree-cricket, which de-posits its eggs in longitudinal rows in the greencanes. One of these rows as it appears when theinsect has completed its work isrepresented at Fig. 47, a, and thecane split open to show how theeggs are inserted is shown at b ofthe same figure. At c may beseen one of the elongated, sl
Insects and insecticidesA practical manual concerning noxious insects and the methods of preventing their injuries . ld bepulled up and destroyed, to be sure to get the larva. The Snowy Tree Cricket. Oecanthus damage is frequently done in raspberryplantations by a small, white tree-cricket, which de-posits its eggs in longitudinal rows in the greencanes. One of these rows as it appears when theinsect has completed its work isrepresented at Fig. 47, a, and thecane split open to show how theeggs are inserted is shown at b ofthe same figure. At c may beseen one of the elongated, slightly-curved, yellow eggs, considerablymagnified, with an opaque, granu-lated cap at the upper end : d is amore highly magnified view ofthis cap. The eggs hatch early insummer into young crickets bear-ins: a general resemblance to theadults, though without feed upon plant-lice andother insects during their entireexistence, being consequently inthis way friends rather than foesof the fruit-grower. By the latterpart of summer they become fully g^*^Vgg mag-grown. They are then of a pale, Sik£e^ap more. Fig. 47. Eggs of SnowyTree-cricket: a, egg punc-
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Keywords: ., bookcentury1800, bookdecade1890, bookidi, booksubjectinsecticides
