558 EXPERIMENT STATION RECORD. [Vol.43 



Other cultivated plants observed to be attacked by the worms in order of 

 preference were sweet potato, sunflower, Irish potato, velvet beans, okra, egg- 

 plant, pepper, oleander, beggarweed, avocado, peanuts, watermelon, coAvpeas, 

 and citrus. The noncultivated plants observed to be eaten were careless weed, 

 pokeweed, willow, morning-glory, bloodroot, Sonchus sp., and Rumex sp. 



Control measures include picking the leaves with young broods or egg 

 masses, dusting with arsenicals, spraying with arsenicals, and using poisoned 

 baits. 



A brief statement by J. R. Watson, of the Florida Experiment Station, of 

 experience with P. eridania caterpillars on castor beans in 1918 is appended 

 (pp. 33,34). 



A honey-feeding larva, W. Cockle {Amer. Bee Jour., 60 (1920), No. 7, pp. 

 23.'f, 235). — The feeding of Vitvhi serratiUneella upon honey in partially filled 

 cells at Kaslo, B. C, is reported upon. 



Experiments on the control of the oriental fruit moth (Laspeyresia 

 molesta Busck) , L. A. Stearns [Quart. Bui. Va. State Crop Pest Comn., 2 

 {1920), No. 1, pp. 3-16, figs. 3). — The author here reports upon twig cutting 

 and insecticide experiments for the control of this pest, which now occurs in 

 Virginia to a distance of 20 odd miles south and west of the Potomac River 

 in Alexandria and Fairfax Counties. The experiments reported have led the 

 author to suggest the following control measures : 



"(1) The removal and the destruction by burning or otherwise of all infested 

 twigs of nursery stock and young orchard trees. This measure would be of 

 most value in the spring. At that time the terminals are infested by .small 

 numbers of overwintering and first brood larva?, whose destruction will decrease 

 considerably the size of the summer broods causing Avidespread injury. (2) The 

 cutting back severely or ' dehorning ' each year of a few trees in a single sec- 

 tion of an infested orchard. The resulting fresh growth on these ' trap trees ' 

 should attract the moth, and the succulent shoots would serve as a feeding 

 ground during the spring and early summer for the worms. These trees may 

 be examined frequently, and the infested twigs removed and destroyed. In 

 bearing orchards fruit infestation might be decreased materially in this way. 

 (3) Applications of nicotine sulphate, 40 per cent, blacldeaf 40 diluted 1 part 

 to 800 parts of water about May 17, June 26, and August 28. Life history 

 studies in 1918 and 1919 have shown that the heaviest deposits of eg.gs are 

 present on the foliage at these dates. (4) Clean culture, which would include 

 the removal and destruction by plowing under or burning of all refuse (leaves, 

 grass, weeds, and especially decaying and mummied fruit) about the tree 

 trunks in which the larva; find suitable quarters to cocoon for hibernation." 



Codling moth control v. extermination, P. S. Darlington (Better Fruit, 

 14 (1920), No. 7, pp. 27, 2S, 30). — This is a discussion of the subject as related 

 to the problem in the State of Washington. 



A study of the malarial mosquitoes of southern Illinois. — I, Operations 

 of 1918 and 1919, S. C. Chandler (III. Dept. Registr. and Ed., Div. Nat. 

 Hist. Survey Bui, 13 (1920), Art. 11, pp. 307-328, pis. 9, figs. 3).— This is a de- 

 tailed account of work conducted by the authop. 



The house fly: Carrier of disease, L. O. Howard (Columbus, Ohio: State 

 Bd. of Health, 1918, pp. 16, figs. 11). — This is a popular account in which the 

 importance of the house fly as a disseminator of disease germs is pointed out, 

 its life history and means of control being briefly described. 



The green Japanese beetle, J. J. Davis (N. J. Dept. Agr. Circ. 30 (1920), 

 pp. 3-33, pi. 1, figs. 20). — This is a summary of information on Popillia japonica 

 Newm., its economic importance, occurrence and spread in this coimtry, host 

 plants, life history and habits, insects likely to be mistaken in the adult and 



