102 Forty-ninth Report on the State Museum 



with the aid of an appropriation by the State Legislature, examina- 

 tion should be made of every locahty, so far as ascertained, which 

 may have received infested stock. The bill introduced in the Senate 

 providing for this work, failed to become a law. Such examinations 

 as have been made during the year, have not brought to light many 

 locahties where the scale was found. There is, therefore, reason to 

 hope that this serious fruit-pest will not spread over the entire State, 

 but that it will prove subject to a law which appears to be control- 

 ling several of our more injurious insects, whereby their distribution 

 and successful planting is limited to certain life-zones which are based 

 on the aggregate amount of temperature during the year. If it shall 

 prove that the San Jose Scale can not be permanently established 

 outside of the northern limit of the " Upper Austral life-zone," then 

 its operations in New York will be largely confined to Long Island, 

 the valley of the Hudson River, and portions of Western New York 

 lying upon Lakes Erie and Ontario. An extended Bulletin upon this 

 Scale, giving description and illustration sufficient for its recognition, 

 and the best methods for its destruction, was prepared and published, 

 and copies of it sent to each person known to have made purchases 

 during the past five years from infested nurseries. The Bulletin also 

 contains information upon other pernicious New York scales, important 

 to fruit growers, and it is therefore reproduced in the present Report. 

 The elm-leat beetle, Galerucella luteola (formerly Galeriica xanihome- 

 lana), was given considerable attention during the months of its pres- 

 ence in Albany, in consideration of its destructiveness in a limited por- 

 tion of the city, its gradual spread during the past three years, and its 

 unlocked for development of a second brood in midsummer. The 

 operations of this insect wherever it has made its appearance, resulting 

 in the defoliation and, often, death of our most highly prized shade 

 trees — the elms — have excited such a widespread interest in it and a 

 desire to learn of means for its control, that notwithstanding its exceed- 

 ing destructiveness, a leading State Entomologist has ventured to call 



