. Annual report. Entomological Society of Ontario; Insect pests; Insects. 94 REPORT OF THE ENTOMOLOGICAL The first weevils were seen on June 3, 1953, when a few- white Dutch plants were in bloom in the alsike field. The alsike had not yet commenced to bloom. These data would indicate that the main movement of the adults, as alfected by the alsike, began during the period June 8 to June 10, reaching a high point by June 18. The population of 1383 at this time was slightly exceeded toward the end of the month. The large decrease in numbers on June 19 may be KEITH FARM 19 52. PRECIPITAT ION TEMPE
. Annual report. Entomological Society of Ontario; Insect pests; Insects. 94 REPORT OF THE ENTOMOLOGICAL The first weevils were seen on June 3, 1953, when a few- white Dutch plants were in bloom in the alsike field. The alsike had not yet commenced to bloom. These data would indicate that the main movement of the adults, as alfected by the alsike, began during the period June 8 to June 10, reaching a high point by June 18. The population of 1383 at this time was slightly exceeded toward the end of the month. The large decrease in numbers on June 19 may be KEITH FARM 19 52. PRECIPITAT ION TEMPERATURE ?|11I??????1|IIBIB|1B-I POPULATION ON WIND FRAMES. 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: 2925px × 854px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1870, booksubjectinsects, bookyear1872