. Bulletin - New York State Museum. Science. 132 NEW YORK STATE MUSEUM. Fig. 48 Cecidomyia sambuci, larva, ventral aspect of posterior extremity, enlarged (Original) VOLUNTARY ENTOMOLOGIC SERVICE OF NEW YORK STATE This work has now been carried through seven seasons and has resulted in the accumulation of a large amount of data particularly valuable because it relates to the relative abundance of a number of common pests, species so well known as to be rarely the subject of careful records. Such data continued through a series of years as previously pointed out should prove of considerable ser
. Bulletin - New York State Museum. Science. 132 NEW YORK STATE MUSEUM. Fig. 48 Cecidomyia sambuci, larva, ventral aspect of posterior extremity, enlarged (Original) VOLUNTARY ENTOMOLOGIC SERVICE OF NEW YORK STATE This work has now been carried through seven seasons and has resulted in the accumulation of a large amount of data particularly valuable because it relates to the relative abundance of a number of common pests, species so well known as to be rarely the subject of careful records. Such data continued through a series of years as previously pointed out should prove of considerable service in determining the causes governing insect outbreaks. Particularly is this true if these reports are correlated with temperature fluctu- ations and other climatic changes, which evidently have a profound influence on insect life, specially during the hibernating winter period. It is still early to draw conclusions upon this important point, as observations should be continued over a series of years. It will be noticed that some observers attribute the relative scarcity of insect depredations to the midsummer drouth. This is undoubt- edly the case with some species, while injuries by other forms were emphasized because the dry weather prevented the normal growth of vegetation and thus made apparent depredations which under ordinary conditions escape notice. This was particularly true of the webworm outbreak in Rensselaer, Columbia and Albany coun- ties, noticed on page 67. The corps of voluntary observers aside from rendering more or less regular reports on local conditions has proved of great service in the case of unusual outbreaks of one kind or another. All parties have responded cheerfully to requests from the office, mak- ing it possible in emergencies when serious injuries like those of the webworm in the eastern part of the State or that of the army worm in the western part of the State are threatened, to determine within a few days the approximate extent of the dep
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectscience, bookyear1887
