. Annual report. Entomological Society of Ontario; Insect pests; Insects -- Ontario Periodicals. Fig. 26. Currant Saw-fly : a male ; b female. Pig. 27. Currant Saw-fly caterpilars. of the imported currant Saw-tly {Nematus ventricosus) Figs. 26, 27 and 28. They occurred in ultitudes and in vai'ious stages of development, and although the currant bushes were nearly bare of foliage, aa adjacent patch of gooseberries was almost entirely free from the pest. Notwithstanding the condition of the foliage the fruit was abundant and of large size. About the middle of May a large number of Pin cherry tre
. Annual report. Entomological Society of Ontario; Insect pests; Insects -- Ontario Periodicals. Fig. 26. Currant Saw-fly : a male ; b female. Pig. 27. Currant Saw-fly caterpilars. of the imported currant Saw-tly {Nematus ventricosus) Figs. 26, 27 and 28. They occurred in ultitudes and in vai'ious stages of development, and although the currant bushes were nearly bare of foliage, aa adjacent patch of gooseberries was almost entirely free from the pest. Notwithstanding the condition of the foliage the fruit was abundant and of large size. About the middle of May a large number of Pin cherry trees (Frunvi Peimsylvanica) in High Park were found to be badly attacked by the Cherry Aphis ( Vlyzus cerasi) the leaves at the ends of the branches being very much crumpled and disfigured. Subsequently they were found plen- tifully on the wild black cherry and also on the cultivated cherry. The Cabbage Butterfly {Pieris rapae) has been exceedingly abundant this summer and has caused a great deal of damage to cabbages and allied vegetables in this locality. On August 15, while inspecting a large market garden north of the city, the writer observed great numbers of the larvpe in all stages on a large bed of cabbages. They were to be found prac- tically on every head, and many plants were quite unmarketable. An adjacent bed of cauliflowers was but little affected, though a few caterpillars were holes eaten by the youn^'larva;. found on some of the heads. In another bed of cabbages only a few hundred yards distant from the one just referred to, the caterpillars were much fewer in numbers though plentiful 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 Entomological Society of Ontario; Ontario. Dept. of Agriculture. Toronto, The Society
Size: 1522px × 1641px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1870, booksubjectinsectp, bookyear1872
