. Bulletin. Insects; Insect pests; Entomology; Insects; Insect pests; Entomology. 108 DECIDUOUS FRUIT INSECTS AND INSECTICIDES. that its development has been greatly influenced by the temperature. A cold spell was invariably followed by a delay in transformation, while a rise in temperature produced a corresponding hastening in development. COMPARATIVE LIFE-HISTORY STUDIES FOR THE SEASONS OF 1907, 1908, AND 1909. On considering the records of the emergence of the moths (fig. 31) and the time of maturity and relative abundance of larvae (fig. 32) for the three years under consideration, it is e
. Bulletin. Insects; Insect pests; Entomology; Insects; Insect pests; Entomology. 108 DECIDUOUS FRUIT INSECTS AND INSECTICIDES. that its development has been greatly influenced by the temperature. A cold spell was invariably followed by a delay in transformation, while a rise in temperature produced a corresponding hastening in development. COMPARATIVE LIFE-HISTORY STUDIES FOR THE SEASONS OF 1907, 1908, AND 1909. On considering the records of the emergence of the moths (fig. 31) and the time of maturity and relative abundance of larvae (fig. 32) for the three years under consideration, it is evident that the codling moth in its development is greatly influenced by seasonal conditions. MAY JUNE JULY /lUG. 6£FT. 15 20 E5 3 I 5 10 15 to 25 3 0 5 10 15 20 25 3 I 5 10 15 20 25 3 I 5 10 15 20 /,907. bio iSomccI. 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 United States. Bureau of Entomology. Washington : G. P. O.
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Keywords: ., bookcentury1900, bookdecade1900, booksubje, booksubjectentomology
