. Bulletin - Massachusetts Agricultural Experiment Station. Agriculture -- Massachusetts. 66 MASS. EXPERIMENT STATION BULLETIN 233 In Massachusetts, two sprays, the calyx (No. 3) and a cover, or post- calyx (No. 4), are usually necessary to control the codling moth effectively, while a later spray (No. 7) is advisable in seasons when this pest is unusually abundant. Figure 2. Dates of Hatching of Codling Motli Larvae, Amherst, Small circle indicates approximate time calyx spray was applied. Small squares show approximate time to apply cover sprays to control codling moth most effectivel
. Bulletin - Massachusetts Agricultural Experiment Station. Agriculture -- Massachusetts. 66 MASS. EXPERIMENT STATION BULLETIN 233 In Massachusetts, two sprays, the calyx (No. 3) and a cover, or post- calyx (No. 4), are usually necessary to control the codling moth effectively, while a later spray (No. 7) is advisable in seasons when this pest is unusually abundant. Figure 2. Dates of Hatching of Codling Motli Larvae, Amherst, Small circle indicates approximate time calyx spray was applied. Small squares show approximate time to apply cover sprays to control codling moth most effectively according to the seasonal liistory of the insect in 1923, 1924, 1925. The above dates may not necessarily coincide with those recommended in the spray schedule, which are based on average conditions and are also influenced by other 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 Massachusetts Agricultural Experiment Station. Amherst, : Massachusetts Agricultural Experiment Station, 1907-1974
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