215 

 <• 

 White Grub Injury in 1915. — Rept. Connecticut Agric. Expt. Sta., 1915 y. 

 New Z^aven, 1916, pp. 179-181, 2 plates. '[Received 25th April 

 1916.] 



About fifteen species of the genus Lachnosterna occur in Connecticut, 

 the following being the most important economically : — L.fusca, Froh.,, 

 L. fraterna, Harris, L. hirticula, Knoch, L. crenulata, Foerster, and 

 L. nova, Smith. Much damage was recorded throughout the State 

 during 1912 and again during 1915. Since the life-cycle occupies three 

 years, further injury may be expected in 1918. The food-plants 

 include maize, potatoes, mangels, lettuce, strawberry, etc. Cultural 

 measures should be followed to reduce the numbers of the larvae. 

 Ploughing and disk-harrowing in autumn should prove effective. 

 Crops most liable to be damaged, such as maize, potatoes and straw- 

 berries, should not be grown on grass or weedy land, nor should they 

 follow small grain in years when white grubs are expected to be 

 abundant. 



Entomological Features of 1915. — Rept. Connecticut Agric. Expt. Sta., 

 1915, New Haven, 1916, pp. 181-183. [Received 25th April 1916.]; 



Tent caterpillars {Mahcosoma) were abundant during the year. 

 Green apple aphis {Aphis pomi) and rosy apple aphis {A. sorhi) caused 

 serious injury to fruit in some districts. The San Jose scale [Aspidiotus 

 perniciosus) was highly parasitised and showed a decline in importance 

 as an orchard pest. Apple maggots {Rhagoletis pomonella) infested 

 early ripening varieties of apples. The cabbage maggot {Chortophila 

 brasstcae) was unusually abundant and caused injury to early cabbages 

 where no control measures had been practised. Red bugs 

 (Heterocordylus) in orchards appeared to be increasing. A slight 

 decrease occurred in the amount of damage by the hickory bark beetle 

 {Scolytus quadrispinosus). 



Miscellaneous Insect Notes. — Rept. Connecticut Agric. Expt. Sta., 1915, 

 New Haven, 1916, pp. 183-191, 1 fig., 4 plates. [Received 

 25th April 1916.] 



Systena taeniata, Say (banded flea-beetle) caused injury to beans,, 

 tomato, egg-plant and sunflower, by feeding on the leaves. Erranis 

 tilaria, Harris (lime-tree span-worm) was found on birch during June. 

 Some of the larvae pupated on 15th June and a single adult was 

 obtained in December. Under natural conditions eggs are laid in 

 November and December. The insect can be checked by the use of 

 arsenical sprays. Large numbers of Piospaltella pemiciosi, Tower, a 

 parasite of the San Jose scale {Aspidiotus perniciosus) were reared. 

 Ceresa bubalus, F. (buffalo tree-hopper), appeared to be common, but 

 only showed the characteristic scarring effect on apple in one locality. 

 This insect is not affected by the usual sprays, but can be controlled 

 by thorough cultivation, by the burning over of weedy borders in. 

 June and by the removal and burning in autumn of infested twigs. 

 Tortrix {Archips) rosana, L. (privet leaf-roller), was present in one 

 district. Lygidea mendax, Reut. (false apple red bug), caused con- 

 siderable damage in the south-western portion of the State. As a 



