309 



ATinuals 105, bieimials 34, and ])oreiinials 12G, The following table 

 shows the distribution " according to the somewhat arbitrary scale of 

 worst, bad, and in different weeds": 



Report of Entomologist, J. B. Smith (pp. 455-528, figs. 30). — 

 This contains brief general notes on the work of the year; an abstract 

 of an article on insecticides and their use, published in Bulletin No. 75 

 of the station (see Experiment Station Record, vol. ii, p. 415) ; compiled 

 notes on the following insects affecting sweet potatoes, with suggestions 

 as to remedies: Two-striped sweet potato beetle {Cassida Mvittata), 

 golden tortoise beetle {Coptocyda aurichalcca), mottled tortoise beetle 

 {Coptocyda guttata), and black-legged tortoise beetle {Cassida nigripes); 

 original and compiled notes on the squash borer {Mclittia ceto), striped 

 cucumber beetle {Diahrotica vittata), boreal hidyhiid {Upilachna horealis), 

 and melon aphid {ApMs cucumeris) as insects injurious to squash and 

 melon vines; eight-spotted forester {Alypia 8-macnlata) as injurious to 

 the grape; katydid {Microcentrus retinervis) and tip worm as injurious 

 to cranberries; black peach aphis {ApMs persicce-niger) aMd peach borer 

 {Hannina exitiosa) as iujuriousto peach trees; wheat louse (>S'rp/<oiiop/<ora 

 avence), wliite cabbage butterfly [Pieris rapw), elm leaf beetle, curculio, 

 apple borer, army worm, corn worm, and clover leaf beetle {Phytonomus 

 punctatus). 



Special Bulletin K of the station (see Experiment Station Record, 

 vol. II, p. 418) gave an account of a number of insects injurious to cran- 

 berries in 1881). In 1890 unusual injury was done to cranberries by 

 katydids. Experiments in cranberry bogs at Jamesburg, New Jersey, 

 indicated that drawing the water from the bogs in the spring and 

 afterwards letting it on again would do much towards preventing the 

 ravages of these insects. Spraying infested patches of the bogs with 

 London purple and Paris green was found to be decidedly beneficial. 

 But " to make spraying successful against these cranberry pests, it is 

 necessary to make the application just as soon as they are hatched and 

 before they get the leaves webbed up." Experiments by the author 

 prove, in his judgment, that punctures by the curculio will not cause 

 the dropping of apples; that though the eggs may hatch, the larvse will 

 not develop in growing apples; that a decaying condition is necessary 

 to bring them to maturity; and that they will not develop in withered 

 fruit when no decay is started. This result enforces the necessity of 

 clearing the orchards of fallen fruit, and especially early in the season. 



