. Insects and plant diseases [microform] : instructions in spraying. Spraying and dusting in agriculture; Agricultural pests; Pulvérisation et poudrage en agriculture; Ennemis des cultures, Lutte contre les. 20 I'igs. 14 and 15). " >% I'/y nee HvMBWoPTERA (Ii«g$, Wagp$, ete.) JcHNBCMON Flies -ThcBe are onr most common para»itei of iniurioaa Meet., chiefly among the batter (Hm and motba. The varfoa. uZielvlnmlch ligs. 14 and 15). ihe most common are Thaleosa, with a very long tail. pari. a/ac on pigeon tremex. and Opfno7i, with yellow body, Vener. ally compres«ed. living on the polyphem
. Insects and plant diseases [microform] : instructions in spraying. Spraying and dusting in agriculture; Agricultural pests; Pulvérisation et poudrage en agriculture; Ennemis des cultures, Lutte contre les. 20 I'igs. 14 and 15). " >% I'/y nee HvMBWoPTERA (Ii«g$, Wagp$, ete.) JcHNBCMON Flies -ThcBe are onr most common para»itei of iniurioaa Meet., chiefly among the batter (Hm and motba. The varfoa. uZielvlnmlch ligs. 14 and 15). ihe most common are Thaleosa, with a very long tail. pari. a/ac on pigeon tremex. and Opfno7i, with yellow body, Vener. ally compres«ed. living on the polyphemua moth and yjllow- , ,. ..y^ necked caterpillar. ' .5-^.^—JUpl*. Braconids.—Sometimes alio called Ichneumr- fliet Fl». 15. ffacrogaster lays egga in the bodies of sphinx larvie. The ,. , ,^ ^»'*^': develop there, and jast before the oaterpiUar perishes they leave It and spin their white, oblong, silken cocoons on its back. The" egg-hke bodies should not be disturbed, as adult Microgastera will swn emerge Aphidiua infests plant lice, but it is too small to be readily seen. (Fig.^;*"''""* (Delicate Uce String) is parasitic on codling moth. etc. th« oahil^^'K%?%^''^'S'\u^""-^'"'^' ""^ P»"«»*»°- 0°« "P^cies infests the cabbage butterfly, and others many troublesome larvje. ^'?*!.-^^''"''"?^*'?^ ".'^ *'* P^'*'^ •'"^"g "»« beneficUl insects, as they subsist chiefly upon injurious forps. '. 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 Ontario. Dept. of Agriculture. [Toronto? : Ontario Dept. of Agriculture]
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectsprayinganddustingin
